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Yes i have done comparisons, the DSLR's can take a great images, but you need to spend so much time cleaning the noise, and then you need to increase the number of exposures to get good detail from the more fainter objects. As bert said elswhere, Canon have a good system for removing noise from their images, but the best method is to freeze its butt off to remove noise. The only other determining factor is the 16 bit ADC over the DSLR, again, this does have an effect on how much you can process and manipilate, but some DSLR images are hard knock as they look so good.
Just as important, and in some cases more important, is the optical system used to image with. When i use my big guns to image, i get good sharp and clear shots. But when you use a less than good quality optical setup, well, as you can see here with the 60mm i used, the picture is slightly washed out. Just cannot get tak sharp stars, and detail in the nebular is lost.
But i dont have another wide field lens to use, better than nothing.
Using a good quality optical system brings the whole image into perspective.
Well, as im typing, im given another 200mm camera lens by a freind. So i'll redo this image and see what a difference a lens makes.
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