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Canon Ef 17 40 4 Popular Q&A

Q: Is the Canon EF 17-40 f/4 L compatible with the 60D?
A: All Canon EOS models can use Canon EF lenses. Read More »

Q: CANON EF 17-40 f4 L or EF 70-200 f4 L?
A: Neither of those are suitable as a walk around lens. The 17-40 is a wide angle zoom. It's great for landscapes on a film camera or full-frame sensor. It's a rat... Read More »

Q: How to Test a Canon EFS 17-55.
A: 1. Line up the red dot on the back of the lens with the red dot on the lens mount of the body. Turn the lens clockwise until you hear a clicking noise. The lens... Read More »

Q: Canon 50mm Vs. Canon EF 17-40mm.
A: Aside from focal length, there can be differences in the lowest aperture or f-stops. According to www.canon.com, the Canon 50mm comes in three different version... Read More »

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