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Astrophotography and Sketching >> Beginning and Intermediate Imaging
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Old Dinosaur
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Filter wheels and cameras
      #3403817 - 10/22/09 09:04 AM
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If a person is planning on narrow band and LRGB with a web cam would a 1.25" wheel operate with a mono CCD by replacing the 2" nose piece with a 1.25 or would the best plan be to get a 2" wheel from the start?
Considerable difference in cost of filters mainly.

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WRS Observatory


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jrcrillyAdministrator
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Re: Filter wheels and cameras new [Re: Old Dinosaur]
      #3403887 - 10/22/09 09:58 AM
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Depends on the chip size. Anything much larger than an ST-10 should have 2" filters.

--------------------
John C
Urban Observatory
A&M/Astreya 76mm F/6 APO
TMB/LOMO 80mm F/7.5 APO
Tak FSQ-106N F/5 APO
Meade 178ED F/9 "APO"
Meade ETX-125AT
C14
Teeter 20" F/3.8 truss Newt w/ServoCat
CI-700, NJP, GPDX/SS2KPC, CG5-GT
ST-10XME, DSI Pro

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Old Dinosaur
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Reged: 05/08/07
Posts: 1258
Loc: Out in the sagebrush
Re: Filter wheels and cameras new [Re: jrcrilly]
      #3403901 - 10/22/09 10:07 AM
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Thanks for that info John.
There are a lot of cameras with sensors smaller than the ST10 that I would be considering.

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WRS Observatory


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jrcrillyAdministrator
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Posts: 25198
Loc: NE Ohio
Re: Filter wheels and cameras new [Re: Old Dinosaur]
      #3403915 - 10/22/09 10:15 AM
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Quote:

Thanks for that info John.
There are a lot of cameras with sensors smaller than the ST10 that I would be considering.



Yup. Big chips are nice, but they are pricey and very demanding on the optical train. I've gone back to modestly-sized chips for now.

--------------------
John C
Urban Observatory
A&M/Astreya 76mm F/6 APO
TMB/LOMO 80mm F/7.5 APO
Tak FSQ-106N F/5 APO
Meade 178ED F/9 "APO"
Meade ETX-125AT
C14
Teeter 20" F/3.8 truss Newt w/ServoCat
CI-700, NJP, GPDX/SS2KPC, CG5-GT
ST-10XME, DSI Pro

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