I have the Televue 60mm APO scope. On Jupiter and Saturn 6-4 are fine but at 3 the image is larger but degraded. Ive used it several nights/mornings and the same results. Im not sure if its the small scope or the lense. Al Nagler uses the 2-4 zoom on this scope with great success so Im guessing that its not the scope. A larger scope might prove out what the problem is.