Rethinking 4/3 Depth Of Field

Started Apr 11, 2013 | Discussions thread
zxaar
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Re: Rethinking 4/3 Depth Of Field
In reply to Anders W, Apr 12, 2013

Anders W wrote:

olliess wrote:

Anders W wrote:

exdeejjjaaaa wrote:

Anders W wrote:

At high ISOs, which is what the OP was talking about, the E-M5 set at two stops lower ISO than the FF camera (for equal DoF), will go equal for SNR at midtones but do better with regard to shadow noise/DR in comparison with all current FF cameras except the D4 (where it will be a tie).

it is soundly beaten by DR @ high ISO even by Canon (1Dx).

Please read what both the OP and I were actually talking about. With the E-M5 at ISO 3200 and the 1Dx at ISO 12800 for equal DoF, the E-M5 will come out slightly ahead.

From the DxO measurements that doesn't look to be the case for DR between the 1Dx and the E-M5. Interestingly it looks as if the 1Dx beats out the D4 slightly in DR above ISO 2200 or so..

Yes, you are right. I was too quick when checking the graph. So the D4, 6D, and 1Dx belong to the group that ties with the E-M5, when the E-M5 can shoot at two stops lower ISO for equal DoF. The D800, D600, 5D3, and A99 belong to the group that the E-M5 beats.

in practice it does not really matter. The FF shooter does not always have to shoot at the DOF that omd would be shooting. If smaller sensor is the one deciding on dof then I would advise the omd users to first shoot with cell phone then calculate equivalent F number based on dof and shoot accordingly. So you are holding a larger sensor camera then it is irrelevant what the smaller sensor camera would be doing there.

Further if someone is always looking for deepest dof , he shall be better with pentax q type system, omd does not have small enough sensor for that.

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::> I make spelling mistakes. May Dog forgive me for this.

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