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Pages: 1 Learken member Reged: 03/17/05 SBIG ST-i Color vs Mono?       #5652793 - 01/30/13 05:10 PM Edit   Reply   Quote Quick Reply   Is there any significant difference between the SBIG ST-i color version vs mono version when used primarily for autoguiding? Does one work better than the other for autoguiding, or is there no real difference? Post Extras:       Fogboundturtle professor emeritus Reged: 05/20/09 Loc: Burnaby, BC Re: SBIG ST-i Color vs Mono? [Re: Learken]       #5652795 - 01/30/13 05:12 PM Edit   Reply   Quote Quick Reply   I would believe the ST-i mono is more sensitive and would be easier overall to find a guiding star. Post Extras:       Learken member Reged: 03/17/05 Re: SBIG ST-i Color vs Mono? [Re: Fogboundturtle]       #5652840 - 01/30/13 05:36 PM Edit   Reply   Quote Quick Reply   Thanks for your reply. Has that been your experience with mono guiders? I did notice on the forum that most people using the ST-i for guiding were using the mono version, that is what prompted my question. I noticed one dealer was offering the color version for $100 off on thier web site. Post Extras:       mmalik Carpal Tunnel Reged: 01/13/12 Loc: USA Re: SBIG ST-i Color vs Mono? [Re: Learken]       #5652937 - 01/30/13 06:19 PM Edit   Reply   Quote Quick Reply   Just like any CCD, ST-i mono is more sensitive; for guiding mono is the way to go. Some discussion here.... Thx Note: There is a guiding kit... as well. Post Extras:       orion69 professor emeritus Reged: 05/09/10 Loc: Croatia Re: SBIG ST-i Color vs Mono? [Re: mmalik]       #5653013 - 01/30/13 06:54 PM Edit   Reply   Quote Quick Reply   Go with mono, forget color... Post Extras:       JoseBorrero Carpal Tunnel Reged: 09/04/09 Loc: MI Re: SBIG ST-i Color vs Mono? [Re: orion69]       #5653144 - 01/30/13 08:22 PM Edit   Reply   Quote Quick Reply   color has a bayer matrix on top of the pixels, it said that this layer block essential light content. Post Extras:       Learken member Reged: 03/17/05 Re: SBIG ST-i Color vs Mono? [Re: JoseBorrero]       #5653227 - 01/30/13 09:17 PM Edit   Reply   Quote Quick Reply   Thanks all for the input, sounds like mono is the way to go. Post Extras:       shams42 Pooh-Bah Reged: 01/05/09 Loc: Kingsport, TN Re: SBIG ST-i Color vs Mono? [Re: Learken]       #5653347 - 01/30/13 10:31 PM Edit   Reply   Quote Quick Reply   Additionally, I suspect that the Bayer matrix might play havoc with subpixel guiding algorithms. Mono all the way. Post Extras:       microstar scholastic sledgehammer Reged: 01/05/08 Loc: Canada Re: SBIG ST-i Color vs Mono? [Re: shams42]       #5653443 - 01/30/13 11:52 PM Edit   Reply   Quote Quick Reply   Quote: Additionally, I suspect that the Bayer matrix might play havoc with subpixel guiding algorithms. Mono all the way. I suspect that as well. I always had drift problems when I was guiding with a DSI color that went away when I switched to a DSI mono. ...Keith Post Extras:       DNTash scholastic sledgehammer Reged: 09/02/07 Loc: Berlin, Germany Re: SBIG ST-i Color vs Mono? [Re: microstar]       #5873270 - 05/20/13 09:04 AM Edit   Reply   Quote Quick Reply   In my mind, this begs the question of the purpose of the ST-i color, and why SBIG would even offer it? Is it a decent color planet camera at least? Post Extras:       Dan Crowson sage Reged: 10/08/10 Loc: O'Fallon, MO Re: SBIG ST-i Color vs Mono? [Re: DNTash]       #5873385 - 05/20/13 10:13 AM Edit   Reply   Quote Quick Reply   .. there's a reason why the color version is cheaper... I think advertising these as planetary cameras is just marketing at best. You could probably buy a Canon DSLR and get better movie results for the same cost. *I do love my ST-i mono for guiding. Moving to the ST-i and an OAG was one of the best decisions I made. Dan Post Extras:       Madratter professor emeritus Reged: 01/14/13 Re: SBIG ST-i Color vs Mono? [Re: Dan Crowson]       #5873433 - 05/20/13 10:35 AM Edit   Reply   Quote Quick Reply   Well, as someone who has actually used both, I can say that: 1) The mono version is as expected somewhat more sensitive. 2) The color version is more than capable of guiding as well. With my ST-i color, unbinned 4 second exposures, I get down to about magnitude 11 with a 50mm finder. Finding guide stars is not a problem. Imaging M81 the other day, both M81 and M82 were easily visible in the ST-i color. If you are going to strictly use it as a guide camera and you have the extra 100$, by all means buy the mono version. But guiding with the color version has not been a problem for me. Edited by Madratter (05/20/13 10:36 AM) Post Extras:       Madratter professor emeritus Reged: 01/14/13 Re: SBIG ST-i Color vs Mono? [Re: shams42]       #5873449 - 05/20/13 10:42 AM Edit   Reply   Quote Quick Reply   Quote: Additionally, I suspect that the Bayer matrix might play havoc with subpixel guiding algorithms. Mono all the way. In practice, this has not been the case for me. I am guiding with a Orion 50mm guider with helical focuser. I image with a Powerstar III c8 running at 1260mm. Post Extras:       Pages: 1

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