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Agree, a slightly larger FOV would see an improvement aesthetically, under the proviso that image scale remained the same. When processing this image, my goal was to bring out as cometary knots and as such wasn't overly concerned about the FOV. I think it would look awesome at an even longer focal length. If nebulosity filled the entire frame, I'd remove the stars to make it more of a feature. There wasn't a cost associated with this image as it was a collaborative effort. In any case, I would be reluctant to tell you figures anyway, best to give it try for yourself to see the value and whether its something your interested in pursuing. You do however need to get things into perspective... we are talking about a serious deep space imaging rig here - certainly not for wimps! The Apogee U42 camera costs US$38k alone. The commercials are relative and from my perspective quite realistic. You gain access to premium instruments (24" RC, 20" RC and 14.5" RC, large format cameras) and wait...dark skies. Clearly, the equates to imaging nirvana, but its not for everyone. I still enjoy using my own humble rig, but as the saying goes - variety is the spice of life...and that is what remote imaging delivers.
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