Learken
member
Reged: 03/17/05
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SBIG ST-i Color vs Mono?
#5652793 - 01/30/13 05:10 PM
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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?
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Fogboundturtle
professor emeritus
Reged: 05/20/09
Loc: Burnaby, BC
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Re: SBIG ST-i Color vs Mono?
[Re: Learken]
#5652795 - 01/30/13 05:12 PM
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I would believe the ST-i mono is more sensitive and would be easier overall to find a guiding star.
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Learken
member
Reged: 03/17/05
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Re: SBIG ST-i Color vs Mono?
[Re: Fogboundturtle]
#5652840 - 01/30/13 05:36 PM
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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.
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mmalik
Carpal Tunnel
Reged: 01/13/12
Loc: USA
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Re: SBIG ST-i Color vs Mono?
[Re: Learken]
#5652937 - 01/30/13 06:19 PM
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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.
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orion69
professor emeritus
Reged: 05/09/10
Loc: Croatia
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Re: SBIG ST-i Color vs Mono?
[Re: mmalik]
#5653013 - 01/30/13 06:54 PM
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Go with mono, forget color...
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JoseBorrero
Carpal Tunnel
Reged: 09/04/09
Loc: MI
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Re: SBIG ST-i Color vs Mono?
[Re: orion69]
#5653144 - 01/30/13 08:22 PM
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color has a bayer matrix on top of the pixels, it said that this layer block essential light content.
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Learken
member
Reged: 03/17/05
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Re: SBIG ST-i Color vs Mono?
[Re: JoseBorrero]
#5653227 - 01/30/13 09:17 PM
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Thanks all for the input, sounds like mono is the way to go.
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shams42
Pooh-Bah
Reged: 01/05/09
Loc: Kingsport, TN
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Re: SBIG ST-i Color vs Mono?
[Re: Learken]
#5653347 - 01/30/13 10:31 PM
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Additionally, I suspect that the Bayer matrix might play havoc with subpixel guiding algorithms. Mono all the way.
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microstar
scholastic sledgehammer
Reged: 01/05/08
Loc: Canada
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Re: SBIG ST-i Color vs Mono?
[Re: shams42]
#5653443 - 01/30/13 11:52 PM
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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
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