Welcome to my review page of the new Canon EOS 50D. I have previously owned the EOS 30D and the EOS 40D which were 8 and 10 megapixels respectively. Both of which are still excellent camera's and will still do the job very nicely indeed. However in 2009 I took the step of upgrading to the new canon 50D, principly for the versitility that its 15 megapixel format allows.
Although of the firm opinion that a digital image should not be cropped unless absolutely necessary, there are occasions when it may be beneficial to do so and the 15 megapixels of the 50D allows for some cropping, without compromising the resolution.
Cropping may be necessary as dragonflies and damselflies can be difficult subjects to approach. You cannot always centre your image in the field and some species do not allow close inspection, therefore cropping can be used to create a frame filling image. Beware of cropping too much as your image will lose definition very quickly.