Bias frames had no banding

[Stewartfrom the Cotswolds]

I'm using an ASI183mc pro camera and I'm trying to build a reference library of master bias and darks.  I use nebulosity but found that even when stretched there was absolutely no detail ( solid grey) in my bias frames.  Is this normal or have I perhaps done something wrong.?  I captured 200 exposures of 0.01 secs.

[wimvb]

As long as the master bias calibrates your darks and lights, you're good. Btw, you may not need bias frames at all. To calibrate out any amp glow and hot pixels you need dark frames, and these already contain a bias signal. To calibrate flat frames you either use a bias master, or dark flats (= dark master created at the same settings as the flat frames). With my ASI174, I never take bias frames.

[geordie85]

9 hours ago, Stewartfrom the Cotswolds said:

I'm using an ASI183mc pro camera and I'm trying to build a reference library of master bias and darks.  I use nebulosity but found that even when stretched there was absolutely no detail ( solid grey) in my bias frames.  Is this normal or have I perhaps done something wrong.?  I captured 200 exposures of 0.01 secs.

I use the qhy183c which I believe has the same sensor and I've never used bias frames. I use darks, flats and darkflats and ever had any issues.