Originally posted by BarryE As they've had more time to use their 645Zs their views are likely to be accurate, but I guess you have to take into account a built in bias that can come from making that medium format investment;-)
I haven't made that 645z investment ;-) I have a few 645z raw files underexposed, if I correct exposure there is not visible degradation of tonality and I feel like there is a log curve behind my sliders, meaning I have to push real hard to cripple the image. With my K1 files, there is no need to push sliders to the max to see colors crippled. Is there something in DNG files that tell the raw converter how sensitive sliders are to the raw data?.
---------- Post added 16-02-21 at 18:18 ----------
Originally posted by zjacreman The 645z has more pixels, but a lot more area, so it has a larger pixel pitch and 20% bigger photo sites.
According to DXO , 1 pixel of a K1 performs about the same as 1 pixel of a 645z. That would mean, 645z noise equivalent sensor size could be about 80% of 1452m2 (1161m2 equ.) since 645z pixels have an area 20% larger with same S/N. 1161m2 (Z) vs 861 (K1) corresponds to about 0.3ev better for the 645z, not a big difference. From theory, I could dial +0.3ev of exposure compensation on the K1 and not see any difference with 645z, but I don't think that would ever close the gap I can see in raw developer.