I have a Canon 60D (crop factor 1.6x) and an 85mm f1.8 prime lens. Now I want to add a 2x teleconverter and attach the 85mm lens to it. My question is: What will the effective aperture be?
How will an image from my Canon 7D look as an 8' by 8' poster? Will using TIFF over JPEG make a difference?
The organizer of a trade show just asked me if he could use one of the images that I took with my Canon 7D for as a backdrop. He said that he needs to photo in TIFF format, and said that he wants to ...