Rethinking 4/3 Depth Of Field

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

al_in_philly wrote:

Of course, I could shoot FF at 2.8, but then I'd also be shooting at an ISO of 12800 for the same shutter speed.

No, that is not the correct. At F1.4 all digital cameras lose about 40% of light. F1.2 lose about 50% and F1.8 loses about 10%. See DXO's F-stop blues article for more detail.  So for the same shot at the same SS, FF shoot at F2.8 would only need ISO 7000, rather than 12800.

Even as good as FF images are, the OM-D at 1/4 the ISO will always look better.

These is no basis for this claim.  OMD does not use alien technology, it uses a Sony sensor, which sports the same technology as D600, D800, A99 and RX1. so if its sensor size is 1/4, then at 1/4 iso it will look exactly the same IQ wise.

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