|
Forum: Pentax Full Frame
08-20-2014, 08:00 AM
|
| |
DxoMark bears this out - A7R 25.6 bits vs 23.7 bits of colour depth for the K-3. That seems a solid margin.
But colour depth seems to depend as much on sensor quality and type of technology as sensor format size per se. At the moment when you sort all the colour depth results for all the DxOMark measured cameras, the top results are all certainly FF and MF. But the newest generation of APS-C sensors, led by the new Sony Alpha 77 II and a few others like the Nikon D3300 and D7100, perform the same for colour depth as FF Nikon D4s, Df, and even the MF 645D. So while most FF's may perform better than APS-C on this metric, it's doesn't seem a straightforward FF vs crop issue.
Furthermore, there aren't any Canon's in the top 25 camera rankings on colour depth on DxOMark, including ANY of their full-frames. Meanwhile, the K-5IIs and a bunch of other crop bodies have greater colour depth than the Canon 1Dx, Canon's full-frame flagship, according to DxO. So the sensor leadership of Sony may be playing more of a role in some metrics than mere FF vs crop sensor size.
|
|
Forum: Pentax Full Frame
08-18-2014, 05:45 PM
|
| |
No. The ability to push the shadows of an image without having detail destroyed is not an inherent feature of FF. You 'just' need a sensor with decent dynamic range and also one that doesn't suffer from technical flaws that introduce various uglies into your image (ie banding) when you push the shadows. Modern cameras like the K-3 and K-5 have awesome dynamic range and an impressive ability to push the shadows without detail degradation. Not all FF have the same ability, especially those with non-Sony sensors. Pic somewhat related - some K-5 magic:
 |
