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Old 09-05-2020, 03:44 PM
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seeker372011 (Narayan)
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seeker372011 is offline
 
Join Date: Oct 2004
Location: Sydney
Posts: 3,652
Help me pick an imager

Hi


I am looking for some advice on the right imager for me

My imaging train consists of an ED 80 (with a 0.8 focal reducer) -480 mm Focal length -and an ED 45 with a 0.85 focal reducer (275 mm focal length)

I plan to image in narrow band -H alpha primarily- practically exclusively

I am looking for help in deciding between two mono cameras- the QHY 163 M and the QHY 183 M.[or possibly their ZWO equivalents]. I couldn't justify -or afford-getting the latest and greatest given the amount of imaging i do-though I have taken the scope out more times in the last few weeks than in the previous five years !

The 183 M is more affordable has smaller pixels and should be OK -I think -in terms of sampling for both my scopes. The 163M is dearer and will undersample with my ED 45, which is a consideration but not a deal breaker

However I am concerned about the amp glow issue for the 183 reported in the past (for the ZWO version) which I seem to gather was difficult to remove even with sufficient darks. I dont know if this a problem in the QHY version or not

I see that with the ED80 and 0.8 reducer, H alpha images on Astrobin are overwhelmingly with the ZWO 1600 MM - the 163 equivalent. But have also read about the problems caused because the Panasonic sensor doesn't have an anti reflective coating.

Both these cameras are now quite dated so there is possibly a lot of experience with these and I would greatly appreciate any wisdom that anyone is willing to share. I was saving for a while for the 183 M but could stretch to the 163 M if it made sense.


Thanks in advance!

Narayan
PS this is a duplicate post think it fits better here going to try and delete the other but not maybe the mods can?
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