Originally posted by Hattifnatt I'm mostly shooting landscapes at sunset, high contrasts pretty much all the time. I would need better DR, a FF is supposed to give me this right? I don't like HDR so most of the times I underexpose and push the shadows... will I get any benefit from the FF? I think I will be able to afford it when it comes.
Also, I have the outstanding (but inconsistent) Sigma 35mm 1.4 Art, and I can't help thinking about how it will perform on a bigger res FF body. And a bit wider too.
Of all the aspects of sensor quality that you can measure, dynamic range is one of the least size-constrained in my opinion.
For example, Nikon offers 24 megapixel sensors both in 1.5x and FX sizes. The Nikon D750 and D7200 are two of the most recent iterations of the original sensor designs, (both from Sony in one way or another) ...and yet the D7200 is measured to have 0.1 stops better DR than the D750, by DXO.
Even if you like to throw DXO measurements out the window, and/or allow for a real-world fudge-factor, ...this still proves that generally speaking, a crop sensor is still capable of quite a great amount of dynamic range.
Heck, the Pentax 16 MP and 24 MP APS-C sensors have already far surpassed any full-frame Canon sensor for dynamic range, and that's a difference you'll see even in the most casual real-world situations!
In other words, unless there is some major technological breakthrough in sensor technology, (Sony's BSI technology in the A7R II actually HARMED dynamic range, compared to the original A7R sensor, according to DXO) ...you can expect the full-frame Pentax to have roughly similar or only marginally better dynamic range than the existing 16 MP and 24 MP crop sensors, which already have pretty amazing DR.
TLDR; if I were a betting man, I'd put $10 on 14-15 stops of DR.
=Matt=