Quote:
Originally Posted by Wavytone
Just wish they’d make sensors with bigger pixels, not more pixels.
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I don't think that is the trend anymore. Sensors have advanced past the original large pixels = low noise and more sensitivity.
Modern Sony mirrorless full frame sensors have read noise around 1 electron at ISO1600 these days. CCDs generally run at about 8-12 electrons typically.
So smaller pixels make more sense now.
Also these sensors are backside illuminated often which means no circuitry between pixels as that is now underneath the sensor.
Low read noise, shorter exposures with lots of subexposures seems to be the new model for astro imaging. That requires smaller pixels, lower read noise, low dark current, high QE all things these high level CMOS sensors have now.
As far as amp glow I thought that was solved. Some camera sensors have amp glow but I think these days most don't.
Per QHY amp glow is caused by slow transfer times and they use a DDRAM buffer to speed it up. Like the Sony A9 camera.
Greg.