24-105 vs 17-70 dof ff vs apsc

Started Jul 18, 2013 | Questions thread
Aidan Gibson
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Re: 24-105 vs 17-70 dof ff vs apsc
In reply to trekkeruss, Jul 18, 2013

trekkeruss wrote:

I'm confused by the question. Are you asking if the two lenses will have the same depth of field on an APS-C sensor? They will if you are using the same focal length and aperture. But the 17-70mm stops at 70mm...it doesn't cover the 70-105mm range. You might be confused about mounting a full frame lens on a crop frame camera; the full frame lens will be longer as well...the 24-105mm mounted on a crop frame camera would effectively be a 36-157.5mm lens.

I looked at some pictures of the Canon 5d 2 and the 24-105 and was thinking what the best equivalent would be on  Pentax apsc. wanted to know how they will compare with dof.

cheers

 Aidan Gibson's gear list:Aidan Gibson's gear list
Pentax K-x Pentax K-5 IIs Sigma 50mm F1.4 EX DG HSM Pentax smc DA 55-300mm F4.0-5.8 ED Sigma 30mm F1.4 EX DC HSM +2 more
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