[GC - South Aus]

G'day Everyone

Bit of a noob question here.

I previously started on a DSLR and moved into using a CCD. I sold my CCD when I sold a lot of my equipment off at the beginning of the year.

I am looking to get back into imaging and I still have my old modified Canon 300D (removed filter etc), I also have access to a Canon 50D.

I was wondering is there any good way to combine images from multiple camera types/resolutions? For example, combining images from both a modified 300D and unmodified 50D when resolution and megapixels are different.

Can this also been done to combine CCD and DSLR images (should I get a CCD again in the future)?

I have heard of people using PixInSight and Registar, are these the ones to use?

Are there any free programs for just trialling this technique?

Is it worth it?

Cheers

Gav