I have a Canon DSLR. I did have a 50mm prime which I used to take pictures of drawings but that got broke.
So I've got a Sigma 18-55 lens which I'm going to have to use instead. What settings should I choose for the absolutely best, crispest photo I can take bearing in mind it'll be of a white sheet of flat A3 paper in good light?
Should I have it way back at 18mm or all the way out to 55? Where is the optimum point? How about Aperture?
Or is there no real difference in quality?