Combining subs of differing FR and exposures

[Terry Danks]

Hi All:

I am faced with combining data consisting of different exposure lengths (5min and 20 min) as well as exposures at f/4.0 and f/2.8 through the same camera lens.
I plan on processing each variant separately with matching flats and darks and then combining them with the Integration Tool.

There is a problem though. In cases where I have only two variants, e.g., 5min@f/2.8 and 5min@f4.0, the Integration Tool will not work as it requires a minimum of three images.

Is there a solution to this? Or a better way of combining disparate data entirely?

[pfile]

probably you should use HDRComposition, if your idea is to recover blown highlights in the longer/faster exposure.

otherwise you can just calibrate all the images, register them, and stack them all together with ImageIntegration.

[Ioannis Ioannou]

Integration Tool requires three images, but does not prevent you to add the same image(s) twice