Potential dead horse: how bad is FF's deep DoF disadvantage?

Started Mar 5, 2014 | Discussions thread
EinsteinsGhost Forum Pro • Posts: 11,977

Your Sample # 1:
If it were deemed that the chair is somewhat a distraction, you could open up the aperture and go with a shallower DOF without compressing the background or changing perspective, now at a lower ISO as well. This is the FF advantage.

Your Sample # 2:
If f/2 equiv in that case is too shallow, it would be the same with f/1 on m43 as well, which means, now you have to stop down there as well. OTOH, it is not necessarily required that one must raise ISO everytime you stop down. Under most occasions, you won't increase ISO proportional to stopping down.

The larger sensor advantage is with being able to isolate without having to compress or change perspective. If your needs are the opposite, you could go with smaller sensors (APSc is my happy medium between small and large).

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