Digital Photography Review on MSN
Cracking the Canon code: what letters like VCM, RF-S and DO tell you about your lens
As with other brands, Canon's lenses feature many letters and acronyms in the lens names. Seeing something like Canon RF ...
Crop sensor cameras may make it easier to get telephoto reach – but the opposite is also true, and finding an ultra-wide lens can be a challenge for crop sensor cameras. Sigma, however, has just ...
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