Quote:
Originally Posted by jwoody
Hello all
This is a great thread and quite timely for me. I am seriously considering the QHY268M to replace my QHY9M but I am just not sure.
The QHY9 is a very good camera, a proven track record, great cooling and large pixels especially as I mainly image at 2000mm.
How much better would the 268 be over the 9? If at all?
I can't decide yet.
Jeremy
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Don't be put off by my frank assessment. The QHY268/ASI2600 is a late model,16 bit, no amp glow, high QE, low read noise and relatively large sensor at APSc which suits many scopes and is less fussy with tilt. I was more referring to the fact that these cameras are on a developmental path and not fully mature yet. This model though is one of the closest to maturity.
As to QHY versus ZWO best to read Cloudy Night assessments on this.
QHY has the readout modes, ZWO has a built in hub. Similar pricing.
I would go with the 268 over the QHY9 as it is higher res and low noise.
What settings to use is one area you'll have to study up on but there are plenty of users on the Cloudy Nights forums.
Sony has a large pixel sensitive sensor for the A7S111 camera. If QHY and ZWO get ahold of that one it may be a great camera for long focal length scopes.
Greg.