Canon USA Consumer Products – EF Lenses 101 – Focal Length Comparison
A visualization tool for focal lengths for Canon lenses. Covers a wide range from 15-1200mm, but in a stepped rather than continuous manner.
Tamron Europe: Focal length comparison
A useful tool to visualize focal lengths for Tamron lenses
Nikon | Imaging Products | NIKKOR Lenses Simulator
A very useful tool to visualize different focal lengths for Nikon lenses\cameras
How to lie with statistics, or how surveys can be flawed in a major way…
Welcome | ICorrect – The Universal Website for Corrections
Interesting website that lets celebrities issue corrections for matters relating to them. The corrections can be browsed for free. There’s of course a steep fee – $1000 pa – if you want to join & issue corrections.