iOptron ST90?
- pakarinen
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iOptron ST90?
Ummm, so this just popped up on a random Google search. $189 for a 90mm? (Single speed R&P though.) F5.6
https://www.adorama.com/atiotar90.html? ... dl-gbase-p
https://www.adorama.com/atiotar90.html? ... dl-gbase-p
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I drink tea, I read books, I look at stars when I'm not cursing clouds. It's what I do.
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AT50, AT72EDII, ST80, ST102; Scopetech Zero, AZ-GTi, AZ Pronto; Innorel RT90C, Oberwerk 5000; Orion Giantview 15x70s, Vortex 8x42s, Navy surplus 7x50s, Nikon 10x50s
I drink tea, I read books, I look at stars when I'm not cursing clouds. It's what I do.
=============================================================================
AT50, AT72EDII, ST80, ST102; Scopetech Zero, AZ-GTi, AZ Pronto; Innorel RT90C, Oberwerk 5000; Orion Giantview 15x70s, Vortex 8x42s, Navy surplus 7x50s, Nikon 10x50s
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Re: iOptron ST90?
I expect the view will be quite violet when viewing objects.
A bottom line beginners telescope I would probably not recommend.
At 90mmf/ 5.6 the level of CA would be difficult to filter out.
A bottom line beginners telescope I would probably not recommend.
At 90mm
Gabrielle
See Far Sticks: Elita 103/1575, AOM FLT 105/1000, Bresser 127/1200 BV, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS 100/1000, Vixen SD115s/885
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The only culture I have is from yogurt
See Far Sticks: Elita 103/1575, AOM FLT 105/1000, Bresser 127/1200 BV, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS 100/1000, Vixen SD115s/885
EQ: TAL MT-1, Vixen SXP, SXP2, AXJ, AXD
Az/Alt: AYO Digi II, Stellarvue M2C, Argo Navis encoders on both
Tripods: Berlebach Planet (2), Uni 28 Astro, Report 372, TAL factory maple, Vixen ASG-CB90, Vixen AXD-TR102
Diagonals: Astro-Physics, Baader Amici, Baader Herschel, iStar Blue, Stellarvue DX, Tak prism, TAL, Vixen
Eyepieces: Antares to Zeiss (1011110)
The only culture I have is from yogurt
- ARock
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Re: iOptron ST90?
Interesting! I did not know anyone still sold these.
Somehow, in achromats, the ST90 and the ST102 do not seem as popular as the ST80 and the ST120.
In other news, I see that the Meade Adventure ST80s are back in stock on Amazon.
Somehow, in achromats, the ST90 and the ST102 do not seem as popular as the ST80 and the ST120.
In other news, I see that the Meade Adventure ST80s are back in stock on Amazon.
AR
Scopes: Zhumell Z8, Meade Adventure 80mm, Bushnell 1300x100 Goto Mak.
Mount: ES EXOS Nano EQ Mount, DIY Arduino+Stepper drives.
AP: 50mm guidescope, AR0130 based guidecam, Canon T3i, UHC filter.
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Binos: Celestron Skymaster 15x70 (Albott tripod/monopod), Nikon Naturalist 7x35.
Scopes: Zhumell Z8, Meade Adventure 80mm, Bushnell 1300x100 Goto Mak.
Mount: ES EXOS Nano EQ Mount, DIY Arduino+Stepper drives.
AP: 50mm guidescope, AR0130 based guidecam, Canon T3i, UHC filter.
EPs: ES82 18,11,6.7mm, Zhumell 30,9mm FJ Ortho 9mm, assorted plossls, Meade 2x S-F Barlow, DGM NPB filter.
Binos: Celestron Skymaster 15x70 (Albott tripod/monopod), Nikon Naturalist 7x35.
- John Fitzgerald
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Re: iOptron ST90?
This seems to be the same as the original Orion ST90. I had one. It was best for terrestrial viewing, although I used it stopped down a bit to project the transits of Venus to good effect.
Double and multiple star observer. Over 3,500 unique pairs logged.
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