Quote:
Originally Posted by gregbradley
Gain 0 sounds low. Higher gain = lower noise.
I suggest you check what others are using for their setting for gain and offsets.
I use a QHY600m and it is not noisy but some settings have lower noise than others and usually optimum for noise control.
I thought others were using a very high number for the gain with that camera.
Greg.
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Greg,
When I bought 2600MC in August 2020 I did post on IIS and CN for info on Gain and offset and the majority recommended Gain 100 as this is when the ZWO set the HCG ( high gain mode ) on the Sony IMX 571 where you benefit from the lowest read noise for the highest dynamic range with a well depth of 20K
You tend to forget this and then jump up to Gain 0 with short subs ( 3min ) and expect a nice clean noise free image under heavy B8 LP skies plus throw the moon in for good measure
The ZWO performance charts on both the 2600MC and 2600MM explain it all
ZWO recommend Gain 0 highest dynamic range for dark skies and long subs
Martin