I'd need a suggestion about camera to take pics of building roofs, my father's company installs domestic solar power plants and would like to take some pics of them to put in his website. He tried ...
If not, what's the difference? A photographic comparison as an example would be great (assuming they are different).
I'm an amateur photographer and only just picked up my first DSLR (went for a 50D with a basic 18-55mm Canon IS lens) and was considering purchasing a wider angle lens such as the Sigma 28mm f/1.8-22 ...