Quote:
Originally Posted by gregbradley
Also I find the specs listed by ZWO misleading. Saying 84% QE for the ASI2600MC is a lie as that would be the QE for the mono version not the colour. Probably more like 60% or so (QE's for popular cameras are listed somewhere - it may be Christian Buil's site, 65% is about as high as they go) much like CCDs except mono CCDs utilise every pixel and are best for narrowband. One shot colour is fun but its way slower and dim areas suffer noise plus weaker at narrowband which is where these cameras excel.
|
Just curious, but why would the QE be lower for OSC than mono? Obviously the Bayer array is doing the colour filtering, but if a red photon hits the red photosite, then it's not otherwise impeded? Likewise for the other two channels of course.
The 183 is listed as 83-84% QE also, doesn't seem unreasonable for back-illuminated sensors.