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

Started Mar 5, 2014 | Discussions thread
Erik Magnuson Forum Pro • Posts: 12,247
Re: Let's try to simplify this.

Karaya wrote:

I was only attempting to point out that the supposed FF advantage in narrow DOF can be a double edged sword. There are instances when a photographer will want more DOF and compared to 4/3 will have to stop down two stops, with a given shutter speed this will necessitate raising the ISO two stops for the FF camera vis a vis the 4/3 camera.

That's still just a single edge unless you are talking about f/22 vs. f/45 and there is no f/45.

Whether current FF cameras will have a 2 stop advantage over 4/3 (or, rather m4/3) at a given ISO is open to debate.

It's also the key having the second edge.  If to match DOF, you must pay a significant price in noise or DR then FF would be at a disadvantage -- where you are also shutter-speed limited.

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