Behold the Mark mk. II

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Kanadalainen
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Behold the Mark mk. II

#1

Post by Kanadalainen »


The scope is unchanged but I drilled the 76 mm rings that I had lying around, and tapped them for 1/4" x 20.

6 anodized screws at 120* orientation to locate the guide scope.

An hour later, voila, the rare Tasco guide scope Mark mk II.

Click on this to expand.

IMG_6438.JPG
The beauty of this arrangement is that I can put the guide/finder exactly where it needs to be for FOV.


This is the little camera that will detect the tracking stars.
IMG_2264.JPG

Thanks for reading to the bottom! :P
Ian

Fracs: Stellarvue 70T f6; SW 120mm Esprit f7; "Mark Mk. II" - 60 mm Tasco f6; C80 frac f 11.4
SCT: C8 Edge f10 or f7 with reducer
Dob: 14.5" homebuilt strut dob (f4.5 ZOC mirror), Nexus II, Moonlite focuser
Mounts - Ioptron Skyguider pro, Astro Physics GTO900
Cameras and lenses - ZWO 2600 mc, 290 mm mini, Canon 60D modded with Rokinon 10mm 2.8; Rokinon 135mm f2

Skysafari 6 Pro, Astro Pixel Processor, Pixinsight - using Mac tablet and ASIair pro to run the AP rig.

"Mothers! It is there!" - Rafael Gonzales-Acuna, 2018.
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Juno16 United States of America
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Re: Behold the Mark mk. II

#2

Post by Juno16 »


Fun stuff! Really nice handiwork Ian!

Just curious, what is the fl of the Tasco?

Do you plan to use PHD2?

I enjoy watching the capture software catching images and dithering (in my case APT) with the PHD2 guiding graphics running in a split screen.

Kind of like beautiful music! Have fun!
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), ZWO OAG, 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, ASI 220mm mini , 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/
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Bigzmey United States of America
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Re: Behold the Mark mk. II

#3

Post by Bigzmey »


Nice mods Ian!
Scopes: Stellarvue: SV102ED; Celestron: 9.25" EdgeHD, 8" SCT, 150ST, Onyx 80ED; iOptron: Hankmeister 6" Mak; SW: 7" Mak; Meade: 80ST.
Mounts: SW: SkyTee2, AzGTi; iOptron: AZMP; ES: Twilight I; Bresser: EXOS2; UA: MicroStar.
Binos: APM: 100-90 APO; Canon: IS 15x50; Orion: Binoviewer, LG II 15x70, WV 10x50, Nikon: AE 16x50, 10x50, 8x40.
EPs: Pentax: XWs & XFs; TeleVue: Delites, Panoptic & Plossls; ES: 68, 62; Vixen: SLVs; Baader: BCOs, Aspherics, Mark IV.
Diagonals: Baader: BBHS mirror, Zeiss Spec T2 prism, Clicklock dielectric; TeleVue: Evebrite dielectric; AltairAstro: 2" prism.
Filters: Lumicon: DeepSky, UHC, OIII, H-beta; Baader: Moon & SkyGlow, Contrast Booster, UHC-S, 6-color set; Astronomik: UHC.

Observing: DSOs: 3106 (Completed: Messier, Herschel 1, 2, 3. In progress: H2,500: 2180, S110: 77). Doubles: 2407, Comets: 34, Asteroids: 255
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Thefatkitty Canada
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Re: Behold the Mark mk. II

#4

Post by Thefatkitty »


Wow Ian, you've done a great job there! Love the rings and the mods to them, very clever. I say that scope is better off in your hands for sure :D

I hope it works as well as the mods you've done; am looking forward to hearing about that. BTW, I measured it out when I had it and it's at f/7, as are my other two like it.

Passe un bon fin du semain, mon chum!
Mark

"The Hankmeister" Celestron 8SE, orange tube Vixen made C80, CG4 & AZ-EQ5 mounts.
Too much Towa glass/mirrors.

Solar:
H/A - PST stage 2 mod with a Baader 90mm ERF on a Celestron XLT 102 (thanks Mike!)
Ca-K - W/O 61mm, Antares 1.6 barlow, Baader 3.8 OD and Ca-K filters with a ZWO ASI174mm.
W/L - C80-HD with Baader 5.0 & 3.8 Solar film, Solar Continuum 7.5nm and UV/IR filters with a Canon EOS 550D.

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Kanadalainen
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Re: Behold the Mark mk. II

#5

Post by Kanadalainen »


Juno16 wrote: Fri Aug 14, 2020 9:45 pm Fun stuff! Really nice handiwork Ian!

Just curious, what is the fl of the Tasco?

Do you plan to use PHD2?

I enjoy watching the capture software catching images and dithering (in my case APT) with the PHD2 guiding graphics running in a split screen.

Kind of like beautiful music! Have fun!
Thanks Jim!

The tasco appears to be of an fl of 360mm - thus is a fairly fast f6...nice for finding/guiding. I’ve used it a number of times for finding and it’s very good.

I have a new rig that I can run off my tablet - an ASIair pro. It’s a raspberry Pi processor and has a very PhD2 style tracking mode.
Ian

Fracs: Stellarvue 70T f6; SW 120mm Esprit f7; "Mark Mk. II" - 60 mm Tasco f6; C80 frac f 11.4
SCT: C8 Edge f10 or f7 with reducer
Dob: 14.5" homebuilt strut dob (f4.5 ZOC mirror), Nexus II, Moonlite focuser
Mounts - Ioptron Skyguider pro, Astro Physics GTO900
Cameras and lenses - ZWO 2600 mc, 290 mm mini, Canon 60D modded with Rokinon 10mm 2.8; Rokinon 135mm f2

Skysafari 6 Pro, Astro Pixel Processor, Pixinsight - using Mac tablet and ASIair pro to run the AP rig.

"Mothers! It is there!" - Rafael Gonzales-Acuna, 2018.
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Kanadalainen
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Re: Behold the Mark mk. II

#6

Post by Kanadalainen »


Bigzmey wrote: Fri Aug 14, 2020 9:48 pmNice mods Ian!
Thanks Andrey!
Ian

Fracs: Stellarvue 70T f6; SW 120mm Esprit f7; "Mark Mk. II" - 60 mm Tasco f6; C80 frac f 11.4
SCT: C8 Edge f10 or f7 with reducer
Dob: 14.5" homebuilt strut dob (f4.5 ZOC mirror), Nexus II, Moonlite focuser
Mounts - Ioptron Skyguider pro, Astro Physics GTO900
Cameras and lenses - ZWO 2600 mc, 290 mm mini, Canon 60D modded with Rokinon 10mm 2.8; Rokinon 135mm f2

Skysafari 6 Pro, Astro Pixel Processor, Pixinsight - using Mac tablet and ASIair pro to run the AP rig.

"Mothers! It is there!" - Rafael Gonzales-Acuna, 2018.
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Kanadalainen
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Re: Behold the Mark mk. II

#7

Post by Kanadalainen »


Thefatkitty wrote: Sat Aug 15, 2020 12:14 am Wow Ian, you've done a great job there! Love the rings and the mods to them, very clever. I say that scope is better off in your hands for sure :D

I hope it works as well as the mods you've done; am looking forward to hearing about that. BTW, I measured it out when I had it and it's at f/7, as are my other two like it.

Passe un bon fin du semain, mon chum!
Salut Mark!

I’m not sure this grasshopper can catch the pebble from the hand of the master just yet! 8-) :D

Oh OK - an f7 - that sounds right. I know the images I get are nicely corrected with not much colour.

I’m off to Calgary for a few days with a UHaul to collect Our youngest kid ~ he’s coming home as his next semesters are all Online.

A bientot mon ami
I
Ian

Fracs: Stellarvue 70T f6; SW 120mm Esprit f7; "Mark Mk. II" - 60 mm Tasco f6; C80 frac f 11.4
SCT: C8 Edge f10 or f7 with reducer
Dob: 14.5" homebuilt strut dob (f4.5 ZOC mirror), Nexus II, Moonlite focuser
Mounts - Ioptron Skyguider pro, Astro Physics GTO900
Cameras and lenses - ZWO 2600 mc, 290 mm mini, Canon 60D modded with Rokinon 10mm 2.8; Rokinon 135mm f2

Skysafari 6 Pro, Astro Pixel Processor, Pixinsight - using Mac tablet and ASIair pro to run the AP rig.

"Mothers! It is there!" - Rafael Gonzales-Acuna, 2018.
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Thefatkitty Canada
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Re: Behold the Mark mk. II

#8

Post by Thefatkitty »


Kanadalainen wrote: Sat Aug 15, 2020 2:28 pm
Thefatkitty wrote: Sat Aug 15, 2020 12:14 am Wow Ian, you've done a great job there! Love the rings and the mods to them, very clever. I say that scope is better off in your hands for sure :D

I hope it works as well as the mods you've done; am looking forward to hearing about that. BTW, I measured it out when I had it and it's at f/7, as are my other two like it.

Passe un bon fin du semain, mon chum!
Salut Mark!

I’m not sure this grasshopper can catch the pebble from the hand of the master just yet! 8-) :D

Oh OK - an f7 - that sounds right. I know the images I get are nicely corrected with not much colour.

I’m off to Calgary for a few days with a UHaul to collect Our youngest kid ~ he’s coming home as his next semesters are all Online.

A bientot mon ami
I
Hey again Ian,

Well, this is embarrassing... I don't know why I had it in my head it's at f/7, I just took a measurement of the one I have and you're quite right, it's really f/6 :oops: I blame my advancing senility... :lol:

That should be a nice road trip; I envy you. Hope everything goes well!
Mark

"The Hankmeister" Celestron 8SE, orange tube Vixen made C80, CG4 & AZ-EQ5 mounts.
Too much Towa glass/mirrors.

Solar:
H/A - PST stage 2 mod with a Baader 90mm ERF on a Celestron XLT 102 (thanks Mike!)
Ca-K - W/O 61mm, Antares 1.6 barlow, Baader 3.8 OD and Ca-K filters with a ZWO ASI174mm.
W/L - C80-HD with Baader 5.0 & 3.8 Solar film, Solar Continuum 7.5nm and UV/IR filters with a Canon EOS 550D.

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Kanadalainen
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Re: Behold the Mark mk. II

#9

Post by Kanadalainen »


Thanks Mark.

The trip has been busy!! 4 years of living in Calgary yields a major collection of goodies. The van is packed :popcorn: and we hit the highway tomorrow.

I
Ian

Fracs: Stellarvue 70T f6; SW 120mm Esprit f7; "Mark Mk. II" - 60 mm Tasco f6; C80 frac f 11.4
SCT: C8 Edge f10 or f7 with reducer
Dob: 14.5" homebuilt strut dob (f4.5 ZOC mirror), Nexus II, Moonlite focuser
Mounts - Ioptron Skyguider pro, Astro Physics GTO900
Cameras and lenses - ZWO 2600 mc, 290 mm mini, Canon 60D modded with Rokinon 10mm 2.8; Rokinon 135mm f2

Skysafari 6 Pro, Astro Pixel Processor, Pixinsight - using Mac tablet and ASIair pro to run the AP rig.

"Mothers! It is there!" - Rafael Gonzales-Acuna, 2018.
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Thefatkitty Canada
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Re: Behold the Mark mk. II

#10

Post by Thefatkitty »


Good for you Ian!
Kanadalainen wrote: Sun Aug 16, 2020 11:43 pm a major collection of goodies
:lol: Well, think of it as added traction...

Safe trip & all the best,
Mark

"The Hankmeister" Celestron 8SE, orange tube Vixen made C80, CG4 & AZ-EQ5 mounts.
Too much Towa glass/mirrors.

Solar:
H/A - PST stage 2 mod with a Baader 90mm ERF on a Celestron XLT 102 (thanks Mike!)
Ca-K - W/O 61mm, Antares 1.6 barlow, Baader 3.8 OD and Ca-K filters with a ZWO ASI174mm.
W/L - C80-HD with Baader 5.0 & 3.8 Solar film, Solar Continuum 7.5nm and UV/IR filters with a Canon EOS 550D.

Member of the RASC
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