p.3 #2 · Sony compression creates artifacts in A7r ?
MaxBerlin wrote:
You're not 'getting it'. There is a string of NO PROCESSED photos that show these artifacts.
As RAW, as TIFFs with no processing, before they get on Flickr and just screenshots.
You want your photos to look like shit when you go to look at them on a 4k monitor next year? Or that really great shot you thought you nailed is posterized and compressed ?
The NEX7 does a better job with tonal transitions than the A7r. That's a fact. You can stick your head in the sand if you want.
Max,
If you have a JPEG, there's processing involved. If you have a TIFF, there's processing involved. Even if you have a RAW onscreen there's processing involved (a RAW displayed is functionally a TIFF). A conversion in LR with no settings tweaked is simply using LR's default processing settings.
I'm not seeing anything that indicates better tonal transitions than the NEX-7. In fact I'd say the opposite based on the RAW you provided (although not by a large difference), but I've not seen enough either way to call it.
All I'm seeing here is an indication that you may need to alter your processing defaults to match what the camera wants, particularly your JPEG export settings in LR.
p.3 #3 · Sony compression creates artifacts in A7r ?
Fred Miranda wrote:
Max,
I think I know why you are getting the background posterization.
In LR, go to export and choose JPEG, color space: "sRGB". Do not choose "PhotoPro RGB".
Try that and let me know what you find.
Fred
+1, that would cause huge issues even with maxed out JPEG quality.
p.3 #4 · Sony compression creates artifacts in A7r ?
Fred, Mawz - I tried all of those possibilities before I started the thread.
The problem occurs in sRGB, AdobeRGB and (yes it's worst in ProPhotoRGB)
Samples of each are shown in Flickr and are noted and named with their export. The one's marked 'Lossy' have no post, no output sharpening. ONLY the choice of color space.
p.3 #7 · Sony compression creates artifacts in A7r ?
I think you can try using different raw converters. Sometimes that makes a difference. I don't have A7(R), but Capture One handles my Sony raw files (NEX-6/7 and RX100) better than ACR/LR. (I use ACR a lot since it is the most convenient). Or you could try the Sony's own converter so they cannot blame the 3rd party.
That kind of posterization doesn't seems uncommon from my NEX files with lots of adjustments(shadow/highlight) in ACR.
p.3 #8 · Sony compression creates artifacts in A7r ?
^^^
I read and re-read your post, and wondered if I'm not up to date. In that, Capture One 7.1.5 is the current version and as of yet doesn't decode the Sony A7(R) raw files?
Correct me if I'm wrong? There should be an update in the wings...
p.3 #9 · Sony compression creates artifacts in A7r ?
ytwong wrote:
I think you can try using different raw converters. Sometimes that makes a difference. I don't have A7(R), but Capture One handles my Sony raw files (NEX-6/7 and RX100) better than ACR/LR. (I use ACR a lot since it is the most convenient). Or you could try the Sony's own converter so they cannot blame the 3rd party.
That kind of posterization doesn't seems uncommon from my NEX files with lots of adjustments(shadow/highlight) in ACR.
I thought it was worth a try. IDC is the worst yet. That's ok because I wasn't going to regress to PMB/IDC anyway.
p.3 #10 · Sony compression creates artifacts in A7r ?
Max, I gotta ask what monitor are you looking at this on? On my calibrated NEC and MBP's retina, it is very hard to see posterization other than the one on the first page, and that was not immediately apparent. The image at the top of this page, where you painted bad transition... I see nothing wrong at all.
p.3 #12 · Sony compression creates artifacts in A7r ?
This may be a solution. It seems to work for the file in question. (edit - it only works for the posterization - there are still garbage pixels in all files).
Import into LR as DNG (copy to DNG) some say it's a good idea anyway.
Then export with sRGB and no output sharpening. This works for a file with no post. About to try same with some typical post and vary with output sharpening.
p.3 #17 · Sony compression creates artifacts in A7r ?
Paul Mo wrote:
So now Canon has the perfect excuse to delay a competitor as this rips across the Internet.
I'm confident this entire thread is bollocks and people are making up problems where their aren't any. If the RAW filesize had matched those of a Nikon and produced these same 'terrible' files, no one would give it a second look. Absolute joke.
p.3 #18 · Sony compression creates artifacts in A7r ?
Can you post another link (the original is maxed out). I'd like to try DxO, which is what I have been using. I haven't seen anything but goodness in my shots.
p.3 #19 · Sony compression creates artifacts in A7r ?
I thought I had horrible posterisation issues on my first serious A7r shots - then I printed one and saw no issues. Sent the RAW to my bro and he saw nothing wrong. Time for a new monitor!
This may not work for everyone but it stopped me panicking
p.3 #20 · Sony compression creates artifacts in A7r ?
hrossm wrote:
I thought I had horrible posterisation issues on my first serious A7r shots - then I printed one and saw no issues. Sent the RAW to my bro and he saw nothing wrong. Time for a new monitor!
This may not work for everyone but it stopped me panicking
Archive 2013 · Sony compression creates artifacts in A7r ?
