"Equivalence" demonstrated: Canon 5D and Panasonic GX1

Started Apr 27, 2013 | Discussions thread
Olymore
Senior MemberPosts: 1,171Gear list
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Re: An answer:
In reply to Great Bustard, Apr 28, 2013

GB, Thanks for that.

I was thinking of a situation where the sensors were identical except for size (so effectively the M43 sensor would be a crop of the FF one), so the explanation is excellent.

I'm surprised that there would be one less stop of DR for equivalent photos with the FF but it makes sense after your explanation.

Would similar apply to other IQ factors like colour depth ?

I suppose that within a generation or two M43 sensors will have similar efficiency to the D800 sensor which I've read is getting close to the theoretical limit of sensor efficiency and (barring new technological breakthroughs) the amount of DR available will hit a ceiling.

So, if you want to maximise DOF and DR, there may be an advantage in choosing a smaller sensor when that occurs (assuming the number of pixels on FF is scaled up proportionately) ?

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