Problems with DSS and darks

[SmokeyJoe]

When I try to add darks and bias frames to my stack in deepsky stacker and then look at the curves in photshop the data is so far over to the left it is sitting on the axis and very little can be done.  I am using an asiair Pro to control my kit which stacks all the darks into one master dark but does not save the indervidual darks (same with the bias frames).  So for example I end up with 120 lights, 1 master dark (stacked from 20 darks by the asiair app), and 1 master bias (stacked from 20 bias frames).  When I stack with no darks or bias frames I get useable data in the curves tool. Any help would be welcome.  

[michael.h.f.wilkinson]

I personally have given up on DSS, and use Astro Pixel Processor instead. Not free, but a good deal better than DSS.

[michael8554]

Hey Joe, (Where You Goin' With That Telescope In Your Hand ..........?)  :-}

What length are your exposures ?

Are you using the Recommended settings in DSS ?

Michael

[SmokeyJoe]

8 hours ago, michael8554 said:

Hey Joe, (Where You Goin' With That Telescope In Your Hand ..........?)  :-}

What length are your exposures ?

Are you using the Recommended settings in DSS ?

Michael

Hi Michael

Exposures ar 1 min for lights and darks, 

I am using recommended settings for dss. 

[michael8554]

Try DSS without the Master Dark and Master Bias

Instead use the Master Bias as the Dark.

(A common DSLR image technique, but needs Dithers to work well )

But it could be that your 1 minute exposures have hardly any more data than your Darks.

Michael

Edited August 11, 2020 by michael8554