Astronomy Site: Meade Advanced Products Users Group Archive: [M]: ST-9E for 12"LX200

 
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Subject: [M]: ST-9E for 12"LX200
From: Dave Curtis
Reply To: mapug@shore.net
Date: Fri Dec 03 13:51:59 1999

While you're here, how about checking out the Astronomy Book List ?

Hi,
Considering purchasing a CCD for my 12" LX200.
In doing so I have to match pixel size to the focal length of my telescope.
The new ST-9E has 20x20micron pixels which maybe more suited at f10 than say
9 micron pixels (without binning).
Would using a f6.3 focal reducer (75 inch focal length system) with 20mu
pixels be acceptable with average seeing. A focal reducer at f3.3 would need
a smaller pixel camera - is this correct?


Thanks
Dave Curtis
Dunedin, New Zealand



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