Cameras forum

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Using non Digital Cannon SLR lenses on a Digital SLR camera

by sjlamine / June 8, 2010 11:32 AM PDT

I am considering purchasing a Canon - EOS Digital Rebel XSi 12.2-Megapixel Digital SLR Camera. I can purchase just the body. Are there any disadvantages to using my Cannon EF lenses from my non-digital camera?

I own two lenses
Cannon Zoom Lens EF 28-80
Cannon Zoom Lens EF 80-200

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Yes

The effective focal lengths will be changed, so the 28-80mm will be 45-128mm instead. That's not very wide at all. The 80-200mm will be a 128-360mm. Because of the crop sensor, you have to multiply all the lenses by 1.6 to get the effective focal length of a 35mm.

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Non digital lenses
by hjfok / June 10, 2010 10:35 AM PDT

Other than the crop factor as mentioned by kalel33, you may also get more aberrations. The digital SLR's sensor is more reflective of light than the film. The new D-SLR's lenses have multi-coatings that decrease aberrations, so more optimized for D-SLRs. But you can try them on the new D-SLR and see whether this is a problem or not. If so, then you can decide whether it's worthwhile to get new lenses.

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agreed with hjfok
by jump1127 / June 13, 2010 3:58 PM PDT
In reply to: Non digital lenses

The older lenses tended to reveal the aberration and flares when shooting against some extreme lighting condition. DSLR camera with 1.6 multiplier sensor will show how good your lenses really are. The old lenses that did well during the period of SLR camera mostly end up not doing okay now. The trouble lies much on the lense coating and design. Canon 28-70 and 80-200 F2.8L are at least a decade old. You may check against the light whether there's any faint dot, implying the lense expiration. If so, time to switch to the newer lenses.

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