Originally posted by MikeNArk Astrotracer 3 is looking to be a good tool. Capture is very good. What's the difference between the size of the crops of required between the two lens. Is the detail equivalent after cropping?
The DFA 150-450 ought to have 1.5x the magnification of the DA*300. As for detail, I'm not sure that this attempt shows what the bigger lens can do. It will have to wait for a darker night and location.
The DA*300 does seem to be a very good astro lens. I have given up on it for anything else, sadly.