Re: [APML] What's the Best Way to "Combine" Two Images ofDiffering Times?

[Jerry Lodriguss <lists4@astropix.com>]

>I see here that the text specifies (as does the example) using vastly
>differing exposures. In this case they ranged from 1 minute to 60
>minutes. I have several images of M31 from a couple weeks ago that
>range from just under 4 hours to almost 5 hours.
>
>Would you folks suggest that I try to acquire some much shorter shots
>or will I be fine with only the longer shots? If the latter is the
>case, is PS's HDR still useable?


You can try it, although I doubt it will work if you don't have enough of a 
range. You need several stops worth of difference for each individual image.

But, my god, 5 hours for a single exposure? You're either shooting dead 
film, or extremely slow film at f/16... what's going on with that?

Jerry


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