Originally posted by stillshot2 I use a K30, and often like to underexpose to preserve highlights and then bring up the shadows later when post processing. I find that I can bring the exposure up by about 1.5 stops in adobe camera raw and still get great results with my K30. I am thinking of getting a Sony a7 for the meantime (until I eventually get a full frame Pentax), but I have heard that the Sony a7 RAW files are not easily pushed without showing artifacts. Is there anyone that can compare their a7 with their Pentax APS-C in regards to this? (preferrably a K30 or newer model Pentax DSLR)
I have exactly both cameras.
I've never bothered to compare between them, but what I will comment is based on my working on lots of files in LR for both cameras.
The A7 sensor, is somehow a bit different than the Exmor 16mp aps-c sensor based sensor (which by extension the A7r 36mp sensor is).
Noise seems to be more apparent from ISO200. (I've never noticed the same from K5 onwards)
Its nothing to tear out the hair over though, just that I notice this characteristic more when processing my files than with the K5 or K30 files.
Overall, still a wonderful sensor with no apparent color noise (as with all the new Sony sensors)
If you want the K30 like performance on FF, the 36mp sensor on the A7r is the one. (but that camera got its own set of issues)
ISO50 is a very nice option.
Gives an extra stop for controlling the shutter speed.
24mp is plenty, yet forgiving on most old lenses (and any lack in technique)
MF with the camera is the best of the cameras I have used (5D w/ EES screen; G3; Pentax since K100; film cameras,etc)
Its EVF based though, so not for everyone. (Luckily, I can switch between OVF/EVF w/o any adaptation issues)
With the Pentax FF coming soon, if you have more AF lenses (or ones worth going for), then just wait for the Pentax.
If you like MF lenses, then I think the A7 is the best one yet.