Help undstanding lenses
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24-06-12, 07:15 PM
Join Date: Sep 2009
Originally Posted by
EDIT. I do think that someone new to DSLR and have never used an old SLR should know what the crop factor is and how it effects them as they may want a wide angle lens for there camera and buy one that quotes wide angle focal's but actually gives them a normal angle once the crop factor comes into play therefore one would have wasted his money.
I disagree. It's this sort of thing that leads people to see an FX or EF lens, and imagine that it will have 1.5x or 1.6x the marked focal length on their DX or crop camera, whereas the DX or EF-S lens has the focal length that's marked on it. The best idea for new dSLR users is to use a kit lens and see what focal lengths do what on their own camera.
There's an awful lot of confusion about the issue, and the magazines generally don't help. They started explaining the crop factor years ago when it could reasonably be expected that the majority of dSLR buyers were coming straight from 35mm, and could reasonably be expected to have some idea of what focal lengths do what. They seem to have got into the habit, no matter how irrelevant it is to today's new buyers. I guess they get to use up some column inches without too much effort and recycle the same old stuff on a regular basis.
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