Hello, New to this forum. I am here for learning. Professionally a digital large format printer, running own business in printing for advertising industry graphics. Newly entering in Fine art & photo copying and printing on Epson 9890. Copying involves photography, DSLR camera, lenses(I discount scanning, and large/medium format Scanbacks to begin with, since found current DSLRs are competent to capture images of 'normal' sizes) After much study, I zoomed in on 5D Mk2 as basic body. Think this full-frame with it's mps can capture a 4x3 ft painting in single shot with enough resolution, to be reproduced without stitching. Not experienced in the mind-boggling multitudes of lenses, just stepped in to the learning process. Need to shortlist 2 lenses: 1. Copying lens: For copying paintings of various sizes, say 4x3, 3x2 ft... Bigger ones may need Stitching. Copying is in-studio. A copying room is in the making. Here is my confusion: Suitable lens mm/size, room length needed to copy the above sizes and rare large ones, say 8x4 ft. etc. (I am aware of need of good lighting, Polarisers, Tripod etc.) Considering a room length of 20/25 feet, which is the good copying lens for Mk2? Result of my study:50 mm - F/1.8 - Canon EF, 50mm f/1.4 USM 2. General purpose landscaping-zoom lens: Budget say $ 500. My find: Canon EF 100-300mm 4.5-5.6 USM. Or should I stretch to EF 70-200mm f/4L IS USM, since I have no plan to keep many lenses. I am no Pro yet, but a lens is no consumable, an asset. I am waiting for your valuable advice on all aspects. Thanks in advance.