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Have you got a while Andrew?
OK each panel is 20x(3s, 7s, 15s, 30s, 60s and 120s) all at 1600 ISO at f/3.6. with the 300mm F2.8L Canon lens and Canon 5DH.
I dither between each image. This minimises sensor error.
Images Plus is used for flat and dark correction all in fits form. This way correction is done before any interpolation. Images Plus is then used to convert to TIFF and upsize by a factor of 1.6 using bicubic interpolation.
These sets of twenty images are then stacked using Deep Sky Stacker. I use med kappa sigma and balance colour with RGB background calibration.
Each of these stacks are now stretched with Images Plus Break point 5000 and background weight of 0.5550.
Photo Shop is now used to adjust levels to get the histogram to the left and balanced for colour.
The set of stacks are now put in a new directory.
Registar is now used to get a common area of all the stacks. I use the sixty second exposure as a reference image. PS is then used to trim this image so there are no black bits.
Run RegiStar again with the trimmed image as the reference. Now combine each exposure with the reference image by setting the weight of the reference image to .0001 and intersection combine.
This will give you a set of identically sized images that only differ in exposure.
These images can then used as input into EasyHDR.
Simple Hey?
Bert
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