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    Default Stacking different exposure images



    I'm still new at this but trying to find the proper way to stack images that are taken at different exposures. Do I apply the appropriate calibration frames to each group (say a 30 sec, 60 sec and 180 sec groups), then stack all the calibrated lights together at once? Or do I stack each group (30 sec stack, 60 sec stack, 180 sec stack), then stack the single image from each group? TIA.
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    Default Re: Stacking different exposure images

    Stack each group and use the single frames you make to create an HDR image.

    Without knowing what program you are using, it's tough to give directions on how to do it.
    Every program is different.
    Basically, you are using the different exposures to create a balanced image.
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    Default Re: Stacking different exposure images

    If you are referring to Deep Sky Stacker (DSS), then you put each set of files (lights, darks, flats, bias) in their own group. Register each group but do not stack. Go back and look at each light frame's score. The one with the highest score you will use as your reference frame. All images with a score lower than 100 you may want to remove if you feel you have enough images left to give a decent result (each situation is different). Once you've done that, then stack as you normally would.

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    Default Re: Stacking different exposure images

    I think you might want to give the hdr stack settings a go in deepsky stacker, dss will automatic detect and put them in groups, a normal stacking method would probably just degrade the lower signal areas
    Last edited by yobbo89; 04-01-2019 at 01:30 AM.

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