Back focus is 6.5mm (https://astronomy-imaging-camera.com/pr ... 600mm-cool)yobbo89 wrote: ↑Tue Jan 28, 2020 10:20 am Nice camera, good price in comparison to other all in one camera/filter wheels. It has its pros and cons, any idea on the back focus for it? , it seems pretty compact and enough room for an oag and corrector.
Shouldn't be hard to just make an extra front part housing for it with an inbuilt oag or possibly a 7 filter version.
Getting ready for first cooled CMOS sensor
- XCalRocketMan
- Orion Spur Ambassador
- Articles: 0
- Posts: 507
- Joined: Sun May 12, 2019 8:09 pm
- 4
- Location: Reisterstown, MD USA
- Status:
Offline
-
TSS Awards Badges
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
Scopes Celestron EdgeHD-11; William Optics GT102; William Optics ZS61; Criterion Dynamax-8 SCT
Mounts AP1100GTO mount w/APCCpro; iOptron iEQ30 Pro; Criterion Dynamax-8 SCT
Lenses Hyperstar-III; Celestron 0.7x FR; WO Flat/Reducer 0.8x
Guiding Celestron OAG w/ASI174mm mini; WO 50mm; Orion ST80
Cameras and Filters ZWO2600mm Pro w/Optolong 3nm NB and RGB; ZWOASI1600mm Pro (ZWO LRGB and Astrodon Ha-5nm, Oiii-3nm, Sii-5nm), QHY10, Canon 50D; ASI174mm mini; ASI462MC; ASI120MC
Misc Moonlite focuser on Edge - Feather-Touch focuser on GT102; ZWO EAF on ZS61; ZWO 2" and 31mm FWs; Kendrick Dew System, Temp-est Fans
Software NINA; PHD; APT; BYE; PI; APP; PSP; Registax; FireCapture; SharpCap
Blog at: SkyAndRockets
Mounts AP1100GTO mount w/APCCpro; iOptron iEQ30 Pro; Criterion Dynamax-8 SCT
Lenses Hyperstar-III; Celestron 0.7x FR; WO Flat/Reducer 0.8x
Guiding Celestron OAG w/ASI174mm mini; WO 50mm; Orion ST80
Cameras and Filters ZWO2600mm Pro w/Optolong 3nm NB and RGB; ZWOASI1600mm Pro (ZWO LRGB and Astrodon Ha-5nm, Oiii-3nm, Sii-5nm), QHY10, Canon 50D; ASI174mm mini; ASI462MC; ASI120MC
Misc Moonlite focuser on Edge - Feather-Touch focuser on GT102; ZWO EAF on ZS61; ZWO 2" and 31mm FWs; Kendrick Dew System, Temp-est Fans
Software NINA; PHD; APT; BYE; PI; APP; PSP; Registax; FireCapture; SharpCap
Blog at: SkyAndRockets
- STEVE333
- Inter-Galactic Ambassador
- Articles: 0
- Posts: 3466
- Joined: Sat May 11, 2019 5:01 pm
- 4
- Location: Santa Cruz, Ca, USA
- Status:
Offline
-
TSS Awards Badges
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
Baskevo wrote: ↑Tue Jan 28, 2020 9:08 pmThat is a good point about the filter wheel! I have the exact same bundle with an 8-position wheel, and I have been happy with it, other than the Oiii filter. Since they updated the filters, I haven't seen any bad reviews on them except for the Oiii, and a couple of really great reviews too. I have been really happy with them so far. I get a few star halos, but personally I think they add character to images Even the Oiii has given me some good frames.
I kind of wish I went with the mounted 1.25" filters though. I think they would be a lot easier to install in the filter wheel. 31mm is REALLY tiny and can be difficult to install. Once installed though, they are great I'm not sure if there is any disadvantage to the 1.25" mounted.
Here's another tip for you: remember which filter position you install each filter in. The filter wheel has numbered positions, and ASCOM knows which position is which. I wasn't paying attention, and I had to uninstall everything to find out which were my color filters
Glad to hear a good report on the new filters. I saw one other review and they also liked the new filters. They did mention that the Oiii still had some halos, and, that is why I've decided to try the Baader 4.5 nm Oiii filter.
Your account of putting the filters in made me laugh. I can laugh because I've done similar things in the past. I will definitely keep track of which filter goes where. In fact I'm going to put them in as:
1) Sii
2) Ha
3) Oiii
4) L
5) R
6) G
7) B
which seems like a logical order and easy to remember.
Cheers,
Steve
Steve King: Light Pollution (Bortle 5)
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
- jrm_astro
- Earth Ambassador
- Articles: 0
- Posts: 41
- Joined: Tue Nov 26, 2019 8:18 am
- 4
- Location: Sunshine Coast, Australia
- Status:
Offline
Re: Getting ready for first cooled CMOS sensor
Hi Steve,
I have just been through this process myself and I'm slowly getting on top of it. I have been usingAPT , it has some great features.
APT or if you are running ASCOM they can be set there too.
I find it easier to useAPT settings as you can see in the camera tab what they are before you click the GO button.
Best of luck with it!
Cheers
John
I have just been through this process myself and I'm slowly getting on top of it. I have been using
The gain and offset can easily be set inSTEVE333 wrote: ↑Tue Jan 28, 2020 2:38 am Hi James - I'm pretty excited. No more Darks Library and spending a day or two taking Darks with the DSLR in an insulated "lunch bag" with ice.
I guess the Gain/Offset information will be in the manual? I have no idea how to set those. However, like everything else, hopefully it will become clearer once I actually get started.
Thanks for the encouragement.
Steve
I find it easier to use
Best of luck with it!
Cheers
John
Scope - Skywatcher ED80
Mount - Skywatcher HEQ5
Guiding - Orion 50mm guide with ZWO ASI120MM-S
Imaging - ZWO ASI1600MM-Cool, ZWO Filter wheel, LRGB, Ha Sii Oiii and Dark frame filters
Software - APT, PS2, ASPS, PHD2, BYE, ASCOM, Stellarium, PI, PS.
Sky - Bortle 5
Mount - Skywatcher HEQ5
Guiding - Orion 50mm guide with ZWO ASI120MM-S
Imaging - ZWO ASI1600MM-Cool, ZWO Filter wheel, LRGB, Ha Sii Oiii and Dark frame filters
Software - APT, PS2, ASPS, PHD2, BYE, ASCOM, Stellarium, PI, PS.
Sky - Bortle 5
- STEVE333
- Inter-Galactic Ambassador
- Articles: 0
- Posts: 3466
- Joined: Sat May 11, 2019 5:01 pm
- 4
- Location: Santa Cruz, Ca, USA
- Status:
Offline
-
TSS Awards Badges
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
Thanks for the encouragement John.
What I was trying to say was that I have no idea what VALUES to set for the Gain and Offset. For Gain it looks like values from 150 - 200 are typical. I don't have any ideas what value to use for Offset. Hopefully it will become obvious once I start using the camera.
We can watch each other's progress as we "muddle along" together.
Cheers,
Steve
Steve King: Light Pollution (Bortle 5)
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
- bobharmony
- Local Group Ambassador
- Articles: 0
- Posts: 2028
- Joined: Sun May 12, 2019 1:11 pm
- 4
- Location: Connecticut, US
- Status:
Offline
-
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
Hi Steve - I'll add a +1 for APT . Like you, I have been using BYEOS since I started down the AP rabbit hole, and it has served me well. Recently I have been thinking about two things - a dedicated astrocam, and being able to sleep at night while I image. These two ideas led me to think about changing up the camera control.
I have since put the new camera on hold, but am still interested in the "sleep while I image" idea.APT has an automated meridian flip that works quite well, and wasn't too painful to set up for the first time, so I look forward to naps at night while imaging.
APTs Baht mask focusing tool works as well for me as (or better than) BYEOS also. I did have to replace Astrotortilla, which integrated well with BYEOS, with the two programsAPT likes, PS2 and All Sky Plate Solver, but they weren't too hard to get running either.
My first complete run with automated flip, and a somewhat complicated capture plan (multiple exposure lengths in sequence coordinated with dithering at the appropriate time) was the M42 image I posted up yesterday. So far, so good. I am looking forward to seeing what you pull in with your new setup!
Bob
I have since put the new camera on hold, but am still interested in the "sleep while I image" idea.
APTs Baht mask focusing tool works as well for me as (or better than) BYEOS also. I did have to replace Astrotortilla, which integrated well with BYEOS, with the two programs
My first complete run with automated flip, and a somewhat complicated capture plan (multiple exposure lengths in sequence coordinated with dithering at the appropriate time) was the M42 image I posted up yesterday. So far, so good. I am looking forward to seeing what you pull in with your new setup!
Bob
Hardware: Celestron C6-N w/ Advanced GTmount, Baader MK iii CC, Orion ST-80, Canon 60D (unmodded), Nikon D5300 (modded), Orion SSAG
Software: BYE, APT, PHD2, DSS, PhotoShop CC 2020, StarTools, Cartes du Ciel, AstroTortilla
Software: BYE, APT, PHD2, DSS, PhotoShop CC 2020, StarTools, Cartes du Ciel, AstroTortilla
- STEVE333
- Inter-Galactic Ambassador
- Articles: 0
- Posts: 3466
- Joined: Sat May 11, 2019 5:01 pm
- 4
- Location: Santa Cruz, Ca, USA
- Status:
Offline
-
TSS Awards Badges
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
Thanks for sharing part of your "journey" with APT Bob. I saw your nice image of M42, congratulations on the successful Meridian Flip! Since my awning prevents me from seeing the Western half of the sky I won't have to learn about the Meridian Flip (sigh!!!!). I haven't tried the Baht mask focussing tool. I used to use Bahtinov Grabber, but, eventually found it too sensitive to "size of window or brightness of spikes or ...". Now I just eyeball the centering and it seems to be working for me.
I still don't connect to my mount. I just get my aiming coordinates from Stellarium and useGoTo to position the scope. Has worked fine even for multiple nights imaging.
I still have a few things I need to learn about inAPT (probably many things, but, I don't know enough about APT to realize how little I know). One is connecting to and controlling the filter wheel which I won't be able to do till the ZWO camera arrives. The second is the "folder structure" in APT . I think I understand it, but, will have to wait to get the ZWO camera to be able to fully test it out with the various filters.
Seems we all end up taking slightly different paths, but, we're all heading to the same goal - beautifulAP images. Nice to see we are all getting there.
Cheers,
Steve
I still don't connect to my mount. I just get my aiming coordinates from Stellarium and use
I still have a few things I need to learn about in
Seems we all end up taking slightly different paths, but, we're all heading to the same goal - beautiful
Cheers,
Steve
Steve King: Light Pollution (Bortle 5)
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
- yobbo89
- Moderator
- Articles: 0
- Posts: 2561
- Joined: Sat May 11, 2019 7:44 pm
- 4
- Location: australia qld brisbane
- Status:
Offline
-
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
in reference to the gt model is what i was after,ie what's left over including the inbuilt filter wheel.XCalRocketMan wrote: ↑Tue Jan 28, 2020 10:39 pmBack focus is 6.5mm (https://astronomy-imaging-camera.com/pr ... 600mm-cool)yobbo89 wrote: ↑Tue Jan 28, 2020 10:20 am Nice camera, good price in comparison to other all in one camera/filter wheels. It has its pros and cons, any idea on the back focus for it? , it seems pretty compact and enough room for an oag and corrector.
Shouldn't be hard to just make an extra front part housing for it with an inbuilt oag or possibly a 7 filter version.
scopes :gso/bintel f4 12"truss tube, bresser messier ar127s /skywatcher 10'' dob,meade 12'' f10 lx200 sct
cameras : asi 1600mm-c/asi1600mm-c,asi120mc,prostar lp guidecam, nikkon d60, sony a7,asi 290 mm
mounts : eq6 pro/eq8/mesu 200 v2
filters : 2'' astronomik lp/badder lrgb h-a,sII,oIII,h-b,Baader Solar Continuum, chroma 3nm ha,sii,oiii,nii,rgb,lowglow,uv/ir,Thousand Oaks Solar Filter,1.25'' #47 violet,pro planet 742 ir,pro planet 807 ir,pro planet 642 bp ir.
extras : skywatcher f4 aplanatic cc, Baader MPCC MKIII Coma Corrector,Orion Field Flattener,zwo 1.25''adc.starlight maxi 2" 9x filter wheel,tele vue 2x barlow .
cameras : asi 1600mm-c/asi1600mm-c,asi120mc,prostar lp guidecam, nikkon d60, sony a7,asi 290 mm
mounts : eq6 pro/eq8/mesu 200 v2
filters : 2'' astronomik lp/badder lrgb h-a,sII,oIII,h-b,Baader Solar Continuum, chroma 3nm ha,sii,oiii,nii,rgb,lowglow,uv/ir,Thousand Oaks Solar Filter,1.25'' #47 violet,pro planet 742 ir,pro planet 807 ir,pro planet 642 bp ir.
extras : skywatcher f4 aplanatic cc, Baader MPCC MKIII Coma Corrector,Orion Field Flattener,zwo 1.25''adc.starlight maxi 2" 9x filter wheel,tele vue 2x barlow .
- STEVE333
- Inter-Galactic Ambassador
- Articles: 0
- Posts: 3466
- Joined: Sat May 11, 2019 5:01 pm
- 4
- Location: Santa Cruz, Ca, USA
- Status:
Offline
-
TSS Awards Badges
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
yobbo89 wrote: ↑Wed Jan 29, 2020 4:38 pmXCalRocketMan wrote: ↑Tue Jan 28, 2020 10:39 pmyobbo89 wrote: ↑Tue Jan 28, 2020 10:20 am Nice camera, good price in comparison to other all in one camera/filter wheels. It has its pros and cons, any idea on the back focus for it? , it seems pretty compact and enough room for an oag and corrector.
Shouldn't be hard to just make an extra front part housing for it with an inbuilt oag or possibly a 7 filter version.
/quote]
[
Back focus is 6.5mm (https://astronomy-imaging-camera.com/pr ... 600mm-cool)
in reference to the gt model is what i was after,ie what's left over including the inbuilt filter wheel.
If you go to the link below there are several "thumbnail images" that you can scroll through and click on to see an enlarged view. If you scroll through the thumbnails you will find one that shows mechanical dimensions of the package. It shows the distance from theCMOS to the front of the package = 26.50 mm.
https://www.highpointscientific.com/zwo ... -asi1600gt
Hope this is what you were looking for.
Cheers,
Xteve
Steve King: Light Pollution (Bortle 5)
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
- XCalRocketMan
- Orion Spur Ambassador
- Articles: 0
- Posts: 507
- Joined: Sun May 12, 2019 8:09 pm
- 4
- Location: Reisterstown, MD USA
- Status:
Offline
-
TSS Awards Badges
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
Steve got it ... the filter wheel adds 20mm, hence, 6.5+20 = 26.50mm
Scopes Celestron EdgeHD-11; William Optics GT102; William Optics ZS61; Criterion Dynamax-8 SCT
Mounts AP1100GTO mount w/APCCpro; iOptron iEQ30 Pro; Criterion Dynamax-8 SCT
Lenses Hyperstar-III; Celestron 0.7x FR; WO Flat/Reducer 0.8x
Guiding Celestron OAG w/ASI174mm mini; WO 50mm; Orion ST80
Cameras and Filters ZWO2600mm Pro w/Optolong 3nm NB and RGB; ZWOASI1600mm Pro (ZWO LRGB and Astrodon Ha-5nm, Oiii-3nm, Sii-5nm), QHY10, Canon 50D; ASI174mm mini; ASI462MC; ASI120MC
Misc Moonlite focuser on Edge - Feather-Touch focuser on GT102; ZWO EAF on ZS61; ZWO 2" and 31mm FWs; Kendrick Dew System, Temp-est Fans
Software NINA; PHD; APT; BYE; PI; APP; PSP; Registax; FireCapture; SharpCap
Blog at: SkyAndRockets
Mounts AP1100GTO mount w/APCCpro; iOptron iEQ30 Pro; Criterion Dynamax-8 SCT
Lenses Hyperstar-III; Celestron 0.7x FR; WO Flat/Reducer 0.8x
Guiding Celestron OAG w/ASI174mm mini; WO 50mm; Orion ST80
Cameras and Filters ZWO2600mm Pro w/Optolong 3nm NB and RGB; ZWOASI1600mm Pro (ZWO LRGB and Astrodon Ha-5nm, Oiii-3nm, Sii-5nm), QHY10, Canon 50D; ASI174mm mini; ASI462MC; ASI120MC
Misc Moonlite focuser on Edge - Feather-Touch focuser on GT102; ZWO EAF on ZS61; ZWO 2" and 31mm FWs; Kendrick Dew System, Temp-est Fans
Software NINA; PHD; APT; BYE; PI; APP; PSP; Registax; FireCapture; SharpCap
Blog at: SkyAndRockets
- sdbodin
- Milky Way Ambassador
- Articles: 0
- Posts: 1086
- Joined: Sat May 11, 2019 11:00 pm
- 4
- Location: Mattawa, WA, USA
- Status:
Offline
-
TSS Awards Badges
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
Just to add to that offset question. I use 50 because it is easy and always leaves a 'front porch' on the histogram, you don't want to clip off the faintest stuff, that's where the data is at. I read somewhere that Zwo was going to fix the offset at 50 on their newest firmware release, but can't find the reference. Gain can still be set, many like 139 and others swear to use 300, so I picked 200 as a compromise. You can work out what you like, just give it 6 months of messing around with the camera.
Good luck,
Steve
Good luck,
Steve
Scopes; Meade 16 LX200, AT80LE, plus bunch just sitting around gathering dust
Cameras; Atik 460ex mono, Zwo ASI1600MC-cool, QHY5L-II color and mono
Cameras; Atik 460ex mono, Zwo ASI1600MC-cool, QHY5L-II color and mono
- XCalRocketMan
- Orion Spur Ambassador
- Articles: 0
- Posts: 507
- Joined: Sun May 12, 2019 8:09 pm
- 4
- Location: Reisterstown, MD USA
- Status:
Offline
-
TSS Awards Badges
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
Yeah, I'm thinking Offset of 50 is the answer. Since I will be using thesdbodin wrote: ↑Thu Jan 30, 2020 4:01 am Just to add to that offset question. I use 50 because it is easy and always leaves a 'front porch' on the histogram, you don't want to clip off the faintest stuff, that's where the data is at. I read somewhere that Zwo was going to fix the offset at 50 on their newest firmware release, but can't find the reference. Gain can still be set, many like 139 and others swear to use 300, so I picked 200 as a compromise. You can work out what you like, just give it 6 months of messing around with the camera.
Good luck,
Steve
Scopes Celestron EdgeHD-11; William Optics GT102; William Optics ZS61; Criterion Dynamax-8 SCT
Mounts AP1100GTO mount w/APCCpro; iOptron iEQ30 Pro; Criterion Dynamax-8 SCT
Lenses Hyperstar-III; Celestron 0.7x FR; WO Flat/Reducer 0.8x
Guiding Celestron OAG w/ASI174mm mini; WO 50mm; Orion ST80
Cameras and Filters ZWO2600mm Pro w/Optolong 3nm NB and RGB; ZWOASI1600mm Pro (ZWO LRGB and Astrodon Ha-5nm, Oiii-3nm, Sii-5nm), QHY10, Canon 50D; ASI174mm mini; ASI462MC; ASI120MC
Misc Moonlite focuser on Edge - Feather-Touch focuser on GT102; ZWO EAF on ZS61; ZWO 2" and 31mm FWs; Kendrick Dew System, Temp-est Fans
Software NINA; PHD; APT; BYE; PI; APP; PSP; Registax; FireCapture; SharpCap
Blog at: SkyAndRockets
Mounts AP1100GTO mount w/APCCpro; iOptron iEQ30 Pro; Criterion Dynamax-8 SCT
Lenses Hyperstar-III; Celestron 0.7x FR; WO Flat/Reducer 0.8x
Guiding Celestron OAG w/ASI174mm mini; WO 50mm; Orion ST80
Cameras and Filters ZWO2600mm Pro w/Optolong 3nm NB and RGB; ZWOASI1600mm Pro (ZWO LRGB and Astrodon Ha-5nm, Oiii-3nm, Sii-5nm), QHY10, Canon 50D; ASI174mm mini; ASI462MC; ASI120MC
Misc Moonlite focuser on Edge - Feather-Touch focuser on GT102; ZWO EAF on ZS61; ZWO 2" and 31mm FWs; Kendrick Dew System, Temp-est Fans
Software NINA; PHD; APT; BYE; PI; APP; PSP; Registax; FireCapture; SharpCap
Blog at: SkyAndRockets
- STEVE333
- Inter-Galactic Ambassador
- Articles: 0
- Posts: 3466
- Joined: Sat May 11, 2019 5:01 pm
- 4
- Location: Santa Cruz, Ca, USA
- Status:
Offline
-
TSS Awards Badges
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
XCalRocketMan wrote: ↑Thu Jan 30, 2020 4:07 amsdbodin wrote: ↑Thu Jan 30, 2020 4:01 am Just to add to that offset question. I use 50 because it is easy and always leaves a 'front porch' on the histogram, you don't want to clip off the faintest stuff, that's where the data is at. I read somewhere that Zwo was going to fix the offset at 50 on their newest firmware release, but can't find the reference. Gain can still be set, many like 139 and others swear to use 300, so I picked 200 as a compromise. You can work out what you like, just give it 6 months of messing around with the camera.
Good luck,
Steve
Yeah, I'm thinking Offset of 50 is the answer. Since I will be using the ASCOM driver (since SGP and ZWO are both steering us away from the native driver) I need a single Offset since you can't set offset on a per-event basis with ASCOM. I also find that Gain of 300 is generally too high since the dynamic range gets really squeezed. I use 139 on LRGB and 200 on NB.
Thanks guys, that really helps. I'm thinking OFFSET = 50, GAIN = 200 for my NB imaging. I feel better already.
Cheers,
Steve
Steve King: Light Pollution (Bortle 5)
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
- STEVE333
- Inter-Galactic Ambassador
- Articles: 0
- Posts: 3466
- Joined: Sat May 11, 2019 5:01 pm
- 4
- Location: Santa Cruz, Ca, USA
- Status:
Offline
-
TSS Awards Badges
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
Just a little update on the APT learning:
I performed two dithering experiments. In each case I allowed the system to dither about 20 times. I then usedDSS to measure the dX and dY dither positions for each sub. I then found the average of the DX values and subtracted that from all dX readings. I did the same for the dY readings. This determines the centroid of the random or spiral ditherings. The distance of each dither from the centroid is what I refer to as the "dither distances" in the discussion below.
DITHERING:
1) ForAPT Dither Distance = 5 and PHD2 Dither Scale = 1 the maximum measured dither distance was about 10 or 11 guide camera pixels.
2) ForAPT Dither Distance = 2 and PHD2 Dither Scale = 1 the maximum measured dither distance was about 4 guide camera pixels.
So, if the PHD2 Dither Scale = 1.0 it appears that the maximum dithering distance in guide camera pixels will be 2 x (APT Dither Distance ).
By the way: The guiding will dither either in random directions, or, in a spiral. The point is that this dither distance can be in arbitrary directions, so, the peak-to-peak dither distance will be twice the
Just FYI.
Cheers,
Steve
I performed two dithering experiments. In each case I allowed the system to dither about 20 times. I then used
DITHERING:
1) For
2) For
So, if the PHD2 Dither Scale = 1.0 it appears that the maximum dithering distance in guide camera pixels will be 2 x (
By the way: The guiding will dither either in random directions, or, in a spiral. The point is that this dither distance can be in arbitrary directions, so, the peak-to-peak dither distance will be twice the
Just FYI.
Cheers,
Steve
Steve King: Light Pollution (Bortle 5)
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
- JayTee
- Universal Ambassador
- Articles: 2
- Posts: 5619
- Joined: Thu Apr 25, 2019 3:23 am
- 4
- Location: Idaho, USA
- Status:
Offline
-
TSS Awards Badges
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
Okay, so you're telling us this info in GUIDE camera pixels, not IMAGING camera pixels. It's the imaging camera that matters.
Am I missing something?
Cheers,
JT
Am I missing something?
Cheers,
JT
∞ Primary Scopes: #1: Celestron CPC1100 #2: 8" f/7.5 Dob #3: CR150HD f/8 6" frac
∞ AP Scopes: #1: TPO 6" f/9 RC #2: ES 102 f/7 APO #3: ES 80mm f/6 APO
∞ G&G Scopes: #1: Meade 102mm f/7.8 #2: Bresser 102mm f/4.5
∞ Guide Scopes: 70 & 80mm fracs -- The El Cheapo Bros.
∞ Mounts: iOptron CEM70AG, SW EQ6, Celestron AVX, SLT & GT (Alt-Az), Meade DS2000
∞ Cameras: #1: ZWO ASI294MC Pro #2: 662MC #3: 120MC, Canon T3i, Orion SSAG, WYZE Cam3
∞ Binos: 10X50,11X70,15X70, 25X100
∞ EPs: ES 2": 21mm 100° & 30mm 82° Pentax XW: 7, 10, 14, & 20mm 70°
Searching the skies since 1966. "I never met a scope I didn't want to keep."
∞ AP Scopes: #1: TPO 6" f/9 RC #2: ES 102 f/7 APO #3: ES 80mm f/6 APO
∞ G&G Scopes: #1: Meade 102mm f/7.8 #2: Bresser 102mm f/4.5
∞ Guide Scopes: 70 & 80mm fracs -- The El Cheapo Bros.
∞ Mounts: iOptron CEM70AG, SW EQ6, Celestron AVX, SLT & GT (Alt-Az), Meade DS2000
∞ Cameras: #1: ZWO ASI294MC Pro #2: 662MC #3: 120MC, Canon T3i, Orion SSAG, WYZE Cam3
∞ Binos: 10X50,11X70,15X70, 25X100
∞ EPs: ES 2": 21mm 100° & 30mm 82° Pentax XW: 7, 10, 14, & 20mm 70°
Searching the skies since 1966. "I never met a scope I didn't want to keep."
- STEVE333
- Inter-Galactic Ambassador
- Articles: 0
- Posts: 3466
- Joined: Sat May 11, 2019 5:01 pm
- 4
- Location: Santa Cruz, Ca, USA
- Status:
Offline
-
TSS Awards Badges
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
You are right JT.
The dithering in Guide Pixels is:
Di = Dg x (FLt/FLg) x (Pg/
where:
Di = dithering in imaging camera pixels
Dg = dithering in guide camera pixels
FLt = imaging telescope focal length
FLg = guide telescope focal length
Pg = size of guide camera pixel
Because so many of these variables vary from system to system,
EXAMPLE:
For my setup:
FLt = 349 mm
FLg = 160 mm
Pg = 5.2 um
Di = Dg x (349/160) x (5.2/5.2) = 4 x 2.18 x 1 = 8.72 image camera pixels.
If this is confusing you can understand why
Cheers,
Steve
Steve King: Light Pollution (Bortle 5)
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
- Juno16
- Universal Ambassador
- Articles: 0
- Posts: 8195
- Joined: Sun May 12, 2019 3:13 pm
- 4
- Location: Mississippi Gulf Coast
- Status:
Offline
-
TSS Awards Badges
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
Thanks Steve for laying it out this way.
You got me thinking that I am probably way over dithering using anAPT Dither Distance of 3 with a PHD2 Dither Scale of 1 with my 1:5 imaging scale.
3 * 714/160 * 5.2/3.9= 17.9
I was thinking 3 guide camera pixels (about 15 total pixels dithered). I am really moving a total of 35+ pixels!
Maybe trimming back will improve my settling time!
Thanks!
You got me thinking that I am probably way over dithering using an
3 * 714/160 * 5.2/3.9= 17.9
I was thinking 3 guide camera pixels (about 15 total pixels dithered). I am really moving a total of 35+ pixels!
Maybe trimming back will improve my settling time!
Thanks!
Jim
Scopes: Explore Scientific ED102 APO, Sharpstar 61 EDPH II APO, Samyang 135 F2 (still on the Nikon).
Mount: Skywatcher HEQ5 Pro with Rowan Belt Mod
Stuff: ASI EAF Focus Motor (x2), Orion 50mm Guide Scope, ZWO 30 mm Guide Scope, ASI 220mm min, ASI 120mm mini, Stellarview 0.8 FR/FF, Sharpstar 0.8 FR/FF, Mele Overloock 3C.
Camera/Filters/Software: ASI 533 mc pro, ASI 120mm mini, Orion SSAG, IDAS LPS D-1, Optolong L-Enhance, ZWO UV/IR Cut, N.I.N.A., Green Swamp Server, PHD2, Adobe Photoshop CC, Pixinsight.
Dog and best bud: Jack
Sky: Bortle 6-7
My Astrobin: https://www.astrobin.com/users/Juno16/
Scopes: Explore Scientific ED102 APO, Sharpstar 61 EDPH II APO, Samyang 135 F2 (still on the Nikon).
Mount: Skywatcher HEQ5 Pro with Rowan Belt Mod
Stuff: ASI EAF Focus Motor (x2), Orion 50mm Guide Scope, ZWO 30 mm Guide Scope, ASI 220mm min, ASI 120mm mini, Stellarview 0.8 FR/FF, Sharpstar 0.8 FR/FF, Mele Overloock 3C.
Camera/Filters/Software: ASI 533 mc pro, ASI 120mm mini, Orion SSAG, IDAS LPS D-1, Optolong L-Enhance, ZWO UV/IR Cut, N.I.N.A., Green Swamp Server, PHD2, Adobe Photoshop CC, Pixinsight.
Dog and best bud: Jack
Sky: Bortle 6-7
My Astrobin: https://www.astrobin.com/users/Juno16/
- STEVE333
- Inter-Galactic Ambassador
- Articles: 0
- Posts: 3466
- Joined: Sat May 11, 2019 5:01 pm
- 4
- Location: Santa Cruz, Ca, USA
- Status:
Offline
-
TSS Awards Badges
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
Juno16 wrote: ↑Sat Feb 01, 2020 2:41 am Thanks Steve for laying it out this way.
You got me thinking that I am probably way over dithering using an APT Dither Distance of 3 with a PHD2 Dither Scale of 1 with my 1:5 imaging scale.
3 * 714/160 * 5.2/3.9= 17.9
I was thinking 3 guide camera pixels (about 15 total pixels dithered). I am really moving a total of 35+ pixels!
Maybe trimming back will improve my settling time!
Thanks!
You're welcome Jim - This is really the first time I've thought it through all the way. The other night (first time using
When I changed the
Glad it is useful for you. I also would expect your settling time to be reduced.
Cheers,
Steve
Steve King: Light Pollution (Bortle 5)
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
- STEVE333
- Inter-Galactic Ambassador
- Articles: 0
- Posts: 3466
- Joined: Sat May 11, 2019 5:01 pm
- 4
- Location: Santa Cruz, Ca, USA
- Status:
Offline
-
TSS Awards Badges
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
Another step forward in the preparation for the cooled camera/filter wheel setup. Today, for the first time, I've successfully connected my mount to the computer!! This step was no longer optional because, with the laptop inside, performing the 1-star alignment requires me to watch the Live View (inside the house) while the RA axis is adjusted (with the hand controller at the mount outside) to put the star in the center of the FOV . Obviously I couldn't be inside and outside at the same time. Controlling the mount from inside the house solves the problem. The mount is also connected to APT so I can use the APT controls to move the telescope (GoTo , Sync, etc). I'm "warming up" to this APT software.
This really is a journey and not a sprint with lots of little successes/failures along the way. :face desk:
Cheers,
Steve
This really is a journey and not a sprint with lots of little successes/failures along the way. :face desk:
Cheers,
Steve
Steve King: Light Pollution (Bortle 5)
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
- Baskevo
- Orion Spur Ambassador
- Articles: 0
- Posts: 829
- Joined: Sun Aug 11, 2019 8:47 am
- 4
- Location: Orange County, California
- Status:
Offline
-
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
STEVE333 wrote: ↑Sun Feb 02, 2020 12:46 am Another step forward in the preparation for the cooled camera/filter wheel setup. Today, for the first time, I've successfully connected my mount to the computer!! This step was no longer optional because, with the laptop inside, performing the 1-star alignment requires me to watch the Live View (inside the house) while the RA axis is adjusted (with the hand controller at the mount outside) to put the star in the center of the FOV. Obviously I couldn't be inside and outside at the same time. Controlling the mount from inside the house solves the problem. The mount is also connected to APT so I can use the APT controls to move the telescope (GoTo, Sync, etc). I'm "warming up" to this APT software.
This really is a journey and not a sprint with lots of little successes/failures along the way. :face desk:
Cheers,
Steve
Very cool! What program are you using to control the mount? EQMod?
Have you plate solved yet?
-James W.
Telescope: Explore Scientific 80mm FCD100 Triplet APO Refractor
Mount: EQ6-R Pro
Cameras: ZWO ASI1600mm Pro (Cooled) | Canon DSLR EOS T7i
Auto-guiding: ZWO ASI120mm-Mini + Astromania 50mm Guidescope
Filters: ZWO 31mm Ha/Oiii/Sii 7nm + LRGB | Orion 2" Skyglow Filter
Accessories: Explore Scientific 2" Field Flattener, ZWO EFW 8 Position
Software: APT, SharpCap Pro, PHD2, CPWI | PixInsight, DeepSkyStacker, Photoshop
Flickr: https://www.flickr.com/gp/186194203@N06/18B629
Telescope: Explore Scientific 80mm FCD100 Triplet APO Refractor
Mount: EQ6-R Pro
Cameras: ZWO ASI1600mm Pro (Cooled) | Canon DSLR EOS T7i
Auto-guiding: ZWO ASI120mm-Mini + Astromania 50mm Guidescope
Filters: ZWO 31mm Ha/Oiii/Sii 7nm + LRGB | Orion 2" Skyglow Filter
Accessories: Explore Scientific 2" Field Flattener, ZWO EFW 8 Position
Software: APT, SharpCap Pro, PHD2, CPWI | PixInsight, DeepSkyStacker, Photoshop
Flickr: https://www.flickr.com/gp/186194203@N06/18B629
- STEVE333
- Inter-Galactic Ambassador
- Articles: 0
- Posts: 3466
- Joined: Sat May 11, 2019 5:01 pm
- 4
- Location: Santa Cruz, Ca, USA
- Status:
Offline
-
TSS Awards Badges
TSS Photo of the Day
Re: Getting ready for first cooled CMOS sensor
iOptron recommends using
Then they recommended downloading:
FTDI USB to RS232 VCP driver from internet
(https://www.ftdichip.com/Drivers/VCP.htm)
Finally I had to get drivers from iOptron for the CEM40.
Once all that was done I started
This might be obvious to younger APers, but, a major triumph for my generation!
I haven't plate solved from within
Cheers,
Steve
Steve King: Light Pollution (Bortle 5)
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
Create an account or sign in to join the discussion
You need to be a member in order to post a reply
Create an account
Not a member? register to join our community
Members can start their own topics & subscribe to topics
It’s free and only takes a minute