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First AP scope

Discuss what equipment you are using.
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First AP scope

#1

Post by Kanadalainen » Thu Jan 16, 2020 12:15 am

I found a new old stock SV70T. I’m considering whether to buy it. It’s a triplet and I can get a decent price here in Canada. 5.5 lbs with rings. Documented optic. F6 without reducer and f4.9 with it.

Would like to hear from those here before buying. Does anyone have any practical experience with these scopes? The reducer flattener is also available. Comparing to a FCD100 ES 80mm or an AT80EDT.

Thanks, any advice is most welcome. Sorry for the brevity - I’m typing this out on my phone.

Cheers
Ian

Scopes - C80 frac with 2" focuser, modified XT10i f4.7, 14.5" DIY strut dob f4.5
DSLR stuff - Nikon D90, Canon 60D; Rokinon 10mm 2.8, Rokinon 135mm f2, Sigma 70-300mm f4
Mount: IOptron skyguider pro
Software: Adobe PS CC, LR CC, GIMP, Skysafari 6 Pro, Deepskystacker 4.2.3

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#2

Post by Bigzmey » Thu Jan 16, 2020 12:32 am

I would pick SV over ES or AT any day. Don't get me wrong ES and AT make good scopes, but as with any mass produced scopes it is a bit of lottery.

SV on the other hand hand-configures every triplet, so high Strehl is guaranteed.
Scopes: Stellarvue: SV102 ED F7; Celestron: 9.25" EdgeHD F10, 8" SCT F10, 6" SCT, F10, Omni 150R Achro F5, Onyx 80ED F6.3; Meade: ST80 Achro F5.
Mounts: ES Twilight I, Bresser EXOS2, SW SkyTee2, AzGTi, UA MicroStar. Binos: Orion 15x70, 10x50, Nikon 8x40.
EPs: Pentax: XWs; TeleVue: Delites, Panoptic, Plossls & barlows; ES: 68s; Vixen: SLVs; Baader: BCOs, Aspherics, Mark IV; Meade: UWAs & Plossls.
Diagonals: Baader: BBHS mirror, Zeiss Spec prism, Clicklock; TeleVue: Evebrite. Filters: Lumicon, Baader, Astronomik.
Observing: DSOs: 1694 (Completed: M110, H1, H2. In progress: H3: 195, H2,500: 1272, S110: 77). Doubles: 1103, Comets: 13, Asteroids: 73
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#3

Post by Kanadalainen » Thu Jan 16, 2020 3:13 am

Thanks andrey!
Ian

Scopes - C80 frac with 2" focuser, modified XT10i f4.7, 14.5" DIY strut dob f4.5
DSLR stuff - Nikon D90, Canon 60D; Rokinon 10mm 2.8, Rokinon 135mm f2, Sigma 70-300mm f4
Mount: IOptron skyguider pro
Software: Adobe PS CC, LR CC, GIMP, Skysafari 6 Pro, Deepskystacker 4.2.3

"Mothers! It is there!" - Rafael Gonzales-Acuna, 2018.
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#4

Post by Juno16 » Thu Jan 16, 2020 3:32 am

Good for you Ian! Looks like you are getting things ready!

Really looking forward to your progress.

Best of luck on your scope choice!

Jim
Scopes: Explore Scientific ED102 Triplet APO, Celestron Nexstar 130 SLT.
Mounts: Celestron AVX with Orion MM Autoguider, SLT;
Binoculars: Bushnell 10X50
Camera / Software: Nikon D5300 (Ha mod), Astrophotography Tool, PHD2, SharpCap v3.2, StarTools 1.6 alpha, PE14
Dog: Jack
Sky: Bortle 6
Astro Photos https://flickr.com/photos/157183480@N07 ... 7681236785
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#5

Post by bladekeeper » Thu Jan 16, 2020 4:16 am

I'm with Andrey. SV will eat ES's lunch any day of the week. I can't speak for the AT scopes, but I've got both SV and ES. The quality, fit and finish, down to the smallest screw, is a cut above ES.

I love my ES scopes. They do the job and get things done. The SV, though, it's my...my precious. :lol:

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Bryan
Scopes: Apertura AD12 f/5; Celestron C6-R f/8; ES AR127 f/6.4; Stellarvue SV102T f/7; iOptron MC90 f/13.3; Orion ST80A f/5; ES ED80 f/6; Celestron Premium 80 f/11.4; Celestron C80 f/11.4; Unitron Model 142 f/16; Meade NG60 f/10
Mounts: Celestron AVX; Bresser EXOS-2; ES Twilight I; ES Twilight II; iOptron Cube-G; AZ3/wood tripod; Vixen Polaris
Binoculars: Pentax PCF WP II 10×50, Bresser Corvette 10×50, Bresser Hunter 16×50 and 8×40, Garrett Gemini 12×60 LW, Gordon 10×50, Apogee 20×100

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#6

Post by Kanadalainen » Thu Jan 16, 2020 5:10 am

:P Hm, I see where this is going. :lol:

I kind of figured as much. From what I can see on astrobin and here, the SV scopes are *damned* good. I don't know anyone with this precise model... was just seeking any obvious red flags.

<sotto voce>

We covets it, don't we?
Ian

Scopes - C80 frac with 2" focuser, modified XT10i f4.7, 14.5" DIY strut dob f4.5
DSLR stuff - Nikon D90, Canon 60D; Rokinon 10mm 2.8, Rokinon 135mm f2, Sigma 70-300mm f4
Mount: IOptron skyguider pro
Software: Adobe PS CC, LR CC, GIMP, Skysafari 6 Pro, Deepskystacker 4.2.3

"Mothers! It is there!" - Rafael Gonzales-Acuna, 2018.
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#7

Post by Lady Fraktor » Thu Jan 16, 2020 5:12 am

The SV70 has a very loyal following, it should not be hard to find reviews of it.
But honestly, if it is a Stellarvue you will not be disappointed with one.
Proper Telescopes: Antares 105 f/15, Celestron 150 f/8, Stellarvue NHNGDX 80 f/6.9, TAL 100RS f/10, TS 102 f/11, UR 70 f/10, Vixen ED115s f/7.7
Mounts: Celestron AS-GT, Celestron CG-5 w/ Argo Navis & tracking motor, SLT w/ pier & tripod mods, Manfrotto 028b w/ SV M2C, Mantrotto 055Pro w/ 128RC, TAL MT1C, Vixen SXP w/ HAL-130 & half pier
Diagonal: 2" A-P Maxbright, 2" Baader Herschel Wedge (P), 2" Zeiss/ Baader Amici Prism (DX2), 2" Orion Amici Prism, 2" Stellarvue DX, 2" TeleVue EverBrite
Eyepieces: Antares to Zeiss
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#8

Post by Kanadalainen » Thu Jan 16, 2020 5:17 am

Lady Fraktor wrote:
Thu Jan 16, 2020 5:12 am
The SV70 has a very loyal following, it should not be hard to find reviews of it.
But honestly, if it is a Stellarvue you will not be disappointed with one.
Thanks Gabrielle, I have found them. Yes, and 95% are positive, ...overtly so. Just wanted to hear from the TSS crowd whom I can count on.

Thanks!
Ian

Scopes - C80 frac with 2" focuser, modified XT10i f4.7, 14.5" DIY strut dob f4.5
DSLR stuff - Nikon D90, Canon 60D; Rokinon 10mm 2.8, Rokinon 135mm f2, Sigma 70-300mm f4
Mount: IOptron skyguider pro
Software: Adobe PS CC, LR CC, GIMP, Skysafari 6 Pro, Deepskystacker 4.2.3

"Mothers! It is there!" - Rafael Gonzales-Acuna, 2018.
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#9

Post by Lady Fraktor » Thu Jan 16, 2020 5:21 am

I love my Stellarvue so much I want my ashes placed inside it and then shot into space so can view with it forever!
Is that too positive of a review? :D
Proper Telescopes: Antares 105 f/15, Celestron 150 f/8, Stellarvue NHNGDX 80 f/6.9, TAL 100RS f/10, TS 102 f/11, UR 70 f/10, Vixen ED115s f/7.7
Mounts: Celestron AS-GT, Celestron CG-5 w/ Argo Navis & tracking motor, SLT w/ pier & tripod mods, Manfrotto 028b w/ SV M2C, Mantrotto 055Pro w/ 128RC, TAL MT1C, Vixen SXP w/ HAL-130 & half pier
Diagonal: 2" A-P Maxbright, 2" Baader Herschel Wedge (P), 2" Zeiss/ Baader Amici Prism (DX2), 2" Orion Amici Prism, 2" Stellarvue DX, 2" TeleVue EverBrite
Eyepieces: Antares to Zeiss
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#10

Post by notFritzArgelander » Thu Jan 16, 2020 6:30 am

Lady Fraktor wrote:
Thu Jan 16, 2020 5:21 am
I love my Stellarvue so much I want my ashes placed inside it and then shot into space so can view with it forever!
Is that too positive of a review? :D
That's what I'll do with my SV ED 80 "merely a doublet". Unless my grandson becomes an awfully proficient and skilled observer and earns my forgoing it by death. :)
Scopes: Refractors: Orion ST80, SV ED80 A f7; Newtonians: Z12 f5; Catadioptrics: VMC110L, Intes MK66. EPs: KK Fujiyama Orthoscopics, 2x Vixen NPLs (40-6mm) and BCOs, Baader Mark IV zooms, TV Panoptics, Delos, Plossl 32-8mm. Mixed brand Masuyama/Astroplans Binoculars: Nikon Aculon 10x50, Celestron 15x70, Baader Maxbright. Mounts: Star Seeker III, Vixen Porta II, Celestron CG5, Orion Sirius EQG
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#11

Post by yobbo89 » Thu Jan 16, 2020 1:40 pm

Lady Fraktor wrote:
Thu Jan 16, 2020 5:21 am
I love my Stellarvue so much I want my ashes placed inside it and then shot into space so can view with it forever!
Is that too positive of a review? :D
reminds me of johnny depp shooting hunter s thompson out of a canon
scopes :gso/bintel f4 12"trust 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/ (upcoming : mesu 200 v2)
filters : 2'' astronomik lp/badder lrgb h-a,sII,oIII,h-b,Baader Solar Continuum, Thousand Oaks Solar Filter.
extras : skywatcher f4 aplanatic cc, Baader MPCC MKIII Coma Corrector,Orion Field Flattener,zwo 1.25''adc.starlight maxi 2" 9x filter wheel
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#12

Post by Juno16 » Thu Jan 16, 2020 2:27 pm

I just want to say that I really like my ES ED102. It fits my needs. When I purchased it, the SV scopes were much higher in price and the ES fit my budget.
No, it doesn’t have a Strehl of 0.995. Its 0.95 Strehl is definitely not the weak link in my imaging (I am!).

Thanks,
Jim
Scopes: Explore Scientific ED102 Triplet APO, Celestron Nexstar 130 SLT.
Mounts: Celestron AVX with Orion MM Autoguider, SLT;
Binoculars: Bushnell 10X50
Camera / Software: Nikon D5300 (Ha mod), Astrophotography Tool, PHD2, SharpCap v3.2, StarTools 1.6 alpha, PE14
Dog: Jack
Sky: Bortle 6
Astro Photos https://flickr.com/photos/157183480@N07 ... 7681236785
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#13

Post by Kanadalainen » Thu Jan 16, 2020 5:06 pm

You started with and ES 80 mm, right Jim?
Ian

Scopes - C80 frac with 2" focuser, modified XT10i f4.7, 14.5" DIY strut dob f4.5
DSLR stuff - Nikon D90, Canon 60D; Rokinon 10mm 2.8, Rokinon 135mm f2, Sigma 70-300mm f4
Mount: IOptron skyguider pro
Software: Adobe PS CC, LR CC, GIMP, Skysafari 6 Pro, Deepskystacker 4.2.3

"Mothers! It is there!" - Rafael Gonzales-Acuna, 2018.
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#14

Post by Juno16 » Thu Jan 16, 2020 7:21 pm

Kanadalainen wrote:
Thu Jan 16, 2020 5:06 pm
You started with and ES 80 mm, right Jim?
Hi Ian,

I think that there are a few folks here that did start with the ES 80, but I have had the ED102 for about two years now and I really like it. I wish that I had an ES 80 too!

Thanks,
Jim
Scopes: Explore Scientific ED102 Triplet APO, Celestron Nexstar 130 SLT.
Mounts: Celestron AVX with Orion MM Autoguider, SLT;
Binoculars: Bushnell 10X50
Camera / Software: Nikon D5300 (Ha mod), Astrophotography Tool, PHD2, SharpCap v3.2, StarTools 1.6 alpha, PE14
Dog: Jack
Sky: Bortle 6
Astro Photos https://flickr.com/photos/157183480@N07 ... 7681236785
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#15

Post by Thefatkitty » Thu Jan 16, 2020 10:09 pm

Ah, mon ami, wish I could help you out here buddy, but me and my low-Sthrel achro's will just wait for your decision... ;)

Awwww, heck, go for it. You know you want it. Also you have an awesome dark sky site. You probably have approval from the CFO as well, so dive in, I personally can't wait to hear about your adventures in AP!

Actually Ian, I just checked, and from my place to yours is 1968km's, and according to Google Maps, I can be there in just over 21 hours. Don't make me come up there.... :lol:

Buy it............
Mark
10" Skywatcher, some Japanese glass, mirrors, binos and eyepieces. And a Canon T3 (1100D).
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#16

Post by bladekeeper » Fri Jan 17, 2020 2:00 am

Ian, I have an ES ED80 as well. It is a very capable imaging scope. I have not used it visually yet (gasp!). As Jim @Juno16 noted, it does cost quite a bit less vs. a new Stellarvue.

It does need a field flattener though. I've yet to purchase one but hope to soon.

I have modified mine somewhat, removed the stock dovetail "foot" and replaced that with a longer bar and rings to help balance in declination with extension tubes and a CMOS cam hanging off the back end. I have also installed my ZWO EAF auto-focuser onto this scope, so that adds more weight to the back end.

As a nod to Mark @Thefatkitty I have had more fun with my C80s. Just something about those scopes. They look bada$$ and they are sheer joy to navigate the sky with. :D
Bryan
Scopes: Apertura AD12 f/5; Celestron C6-R f/8; ES AR127 f/6.4; Stellarvue SV102T f/7; iOptron MC90 f/13.3; Orion ST80A f/5; ES ED80 f/6; Celestron Premium 80 f/11.4; Celestron C80 f/11.4; Unitron Model 142 f/16; Meade NG60 f/10
Mounts: Celestron AVX; Bresser EXOS-2; ES Twilight I; ES Twilight II; iOptron Cube-G; AZ3/wood tripod; Vixen Polaris
Binoculars: Pentax PCF WP II 10×50, Bresser Corvette 10×50, Bresser Hunter 16×50 and 8×40, Garrett Gemini 12×60 LW, Gordon 10×50, Apogee 20×100

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#17

Post by JayTee » Fri Jan 17, 2020 3:55 am

Another ES80mm APO owner here. Between the two main FFs, the Hotech SCA FF and Astro-Tech AT2FF (I own both), I found that the AT2FF is the better FF. Just in case you need an FF for an ES APO.

Cheers,
JT-FF

I couldn't stop typing FF!
Main: C-stron CPC1100 #2 Scope: 8" f/7.5 Dob mounted Newt AP Scopes: TPO 6" f/9 RC, ES 80mm f/6 APO G&G Scope: Meade 102mm f/7.8, Bresser 102mm f/4.5 Guide Scopes: 70 & 80mm fracs Mounts: C-stron AVX CGEM & GT Alt-Az, Meade DS2000 Cameras: Canon T3i (x2), ASI120MC Binos: 10X50,10.5X70,15X70 (x2), 25X100 EPs: ES: 21 100°, 30 82° X-Cels: 9, 12, 18, 25 Clubs: RCA & HAS
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#18

Post by Kanadalainen » Fri Jan 17, 2020 4:11 pm

Thanks all - some great advice.

I put down a down payment on an SV70T scope and matching focal reducer/flattener earlier today. I'm going to sell a few things to make room. :)
Ian

Scopes - C80 frac with 2" focuser, modified XT10i f4.7, 14.5" DIY strut dob f4.5
DSLR stuff - Nikon D90, Canon 60D; Rokinon 10mm 2.8, Rokinon 135mm f2, Sigma 70-300mm f4
Mount: IOptron skyguider pro
Software: Adobe PS CC, LR CC, GIMP, Skysafari 6 Pro, Deepskystacker 4.2.3

"Mothers! It is there!" - Rafael Gonzales-Acuna, 2018.
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#19

Post by Juno16 » Fri Jan 17, 2020 4:20 pm

Congratulations Ian! I am sure that you will be happy with your new scope!

Looking forward already to some wide field images!

Thanks,
Jim
Scopes: Explore Scientific ED102 Triplet APO, Celestron Nexstar 130 SLT.
Mounts: Celestron AVX with Orion MM Autoguider, SLT;
Binoculars: Bushnell 10X50
Camera / Software: Nikon D5300 (Ha mod), Astrophotography Tool, PHD2, SharpCap v3.2, StarTools 1.6 alpha, PE14
Dog: Jack
Sky: Bortle 6
Astro Photos https://flickr.com/photos/157183480@N07 ... 7681236785
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#20

Post by Bigzmey » Fri Jan 17, 2020 8:49 pm

Congrats Ian, you gonna love it!
Scopes: Stellarvue: SV102 ED F7; Celestron: 9.25" EdgeHD F10, 8" SCT F10, 6" SCT, F10, Omni 150R Achro F5, Onyx 80ED F6.3; Meade: ST80 Achro F5.
Mounts: ES Twilight I, Bresser EXOS2, SW SkyTee2, AzGTi, UA MicroStar. Binos: Orion 15x70, 10x50, Nikon 8x40.
EPs: Pentax: XWs; TeleVue: Delites, Panoptic, Plossls & barlows; ES: 68s; Vixen: SLVs; Baader: BCOs, Aspherics, Mark IV; Meade: UWAs & Plossls.
Diagonals: Baader: BBHS mirror, Zeiss Spec prism, Clicklock; TeleVue: Evebrite. Filters: Lumicon, Baader, Astronomik.
Observing: DSOs: 1694 (Completed: M110, H1, H2. In progress: H3: 195, H2,500: 1272, S110: 77). Doubles: 1103, Comets: 13, Asteroids: 73
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