Shooting Hydrogen Alpha with a Hutech Modified Digital Rebel

Kodak recently announced that it has discontinued production of its wonderful Technical Pan Film.    This film was exceptional when hypered and shot through a hydrogen-alpha filter.  Can the modified Digital Rebel come close to its performance?

Note:  The digital images were taken through an Orion 80ED scope and a Lumicon Hydrogen Alpha filter on 12/20/04.  The moon was just under 10 days old and was approximately 70% full when these were taken!

This is a combination of 10 X 300s (a total of 50 minutes) exposures through a Lumicon Hydrogen Alpha filter.    Images were stacked in ImagesPlus and a digital development stretch was applied.

The same image converted to grayscale in ImagesPlus based on a method explained by Mike Unsold. The image was curves adjusted to try to match it with a Tech Pan image of the same object. Compare this image with the one below  taken through a scope of the same focal length (an Orion 120 ST). It was shot through a red 25a filter and has a slight noise reduction filter applied. It is a single 2 hour exposure compared with a total of 50 minutes in the digital image above. Also note that the moon was only 1/4 full when the film image was taken.

NOTE: This is not meant to be a scientific test.  The film image has everything going for it... less moonlight a filter that allows significantly more light through more than double the exposure length a larger aperture imaging instrument