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Forum: Troubleshooting and Beginner Help 05-11-2017, 02:41 PM  
f-stop crop
Posted By Saltwater Images
Replies: 6
Views: 836
The larger FF sensor has the advantage of providing shallower depth of field. A larger sensor also captures more light. The APS-C sensor has a crop factor (smaller image area). Trying to create a similar image (FOV and DOF) from the same shooting position with the two different formats is an interesting exercise. Shooting with a K-3 and a Sigma 18-35 set at 33mm and f/1.8 will provide a similar field of view to a K-1 with a 50mm focal length and f/2.8 aperture. Appling the crop factor to both the focal length and aperture will help you visualize the differences between formats.
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