Recently I tried to take a picture of the moon using my Sony 75-300 lens and was very disapointed. (Note I am talking about the non-G model!)
My camera wouldn't auto-focus but this was to be expected, at least in my experience with night photography. So I used manual focus and much to my surprise I found that the change in image size was extreme.
The moon went from more than filling the entire image to only filling 1/4 of the image!
So I'd like some advice as to whether I am doing something wrong or whether I'm simply have the wrong tool for the job. At this point this lens seems to zoom no better than my Sony 18-250mm lens and I'm close to trying to sell it.