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Old 01/11/2008, 01:26 PM
MGB MGB is offline
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Join Date: Apr 2005
Location: Montana
Posts: 215
If your ever going to upgrade to a full frame DSLR, the EF-s mount lens will not work, only works on cropped sensor bodies.
If you buy a "L" series lens it will work on any body, cropped or full frame, the difference being that on a cropped body it is effectively a 1.6x increased focal length, ie, 100mm becomes 160mm. Personally I'd lean towards the "L" series lenses, great quality and work on both cropped and full frame, you don't want to end up buying the same lens twice.