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Forum: Pentax SLR Lens Discussion 07-31-2015, 07:50 PM  
50 mm crop factor
Posted By Imp
Replies: 27
Views: 2,454
Sorry, I was unclear. If you take the lens and set it at 2.8 on an aps-c, and then set it to f/4 on a full frame in order to achieve the same DOF, Then you don't have the same amount of light, right?

---------- Post added 07-31-15 at 10:53 PM ----------



right, that makes sense
Forum: Pentax SLR Lens Discussion 07-31-2015, 06:07 AM  
50 mm crop factor
Posted By Imp
Replies: 27
Views: 2,454
wouldn't a 50 1.8 be a brighter overall image on a full frame than if you place the same lens on an aps-c?
Forum: Pentax SLR Lens Discussion 07-30-2015, 05:34 AM  
50 mm crop factor
Posted By Imp
Replies: 27
Views: 2,454
if you use a 50mm lens on a aps-c sensor, you will be seeing the equivalent field of view of a 75mm lens on a full frame camera.
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