The Moon

Picture 1, by Lucas

Picture 2, by Max

You can clearly see the advantage of a longer focal length in moon shots; Lucas was using an EF 75-300mm lens, which equates to 480mm on his camera due to its APS-C (cropped-frame) sensor.

I (Max) used a 55-250mm EF-S lens and cropped the photo...perhaps if I had had a camera with more megapixels, such as the 7D, I'd have been able to zoom in more and get more detail.

480mm vs. 250mm; not very fair there, is it?