A7RII posterization?

None of what you posted is overly damning of Sony, though it is of the results he found in that situation. I wouldn't be quite as sweeping as him as I don't agree with some of his basic assertions but I can see through it. Knowing the limits of one's gear is a good thing, as Iliah has so capably pointed out. My Sony cams are tools I use to excecute a vision and I appreciate knowing their shortcomings. The situation he is showing is rare, though not unprecedented. I do not forsee it being much of a problem for me but I appreciate knowing about it. I can make up my own mind, as can you.

As for his opinions on Nikon:

The lack of an EVF option is a gross tactical and strategic error, because it is the EVF that can bridge the gap to mirrorless! Seen in that light, it’s borderline suicidal in today’s camera market, what with Sony encroaching fast. The EVF makes a DSLR into a larger mirrorless-like camera, which is half the battle. Mirrorless is about size (sure), but it’s also about the EVF and its many benefits.

I am hoping that the D810 is the end of the line in the sense that all future DSLRs from Nikon (and Canon) will have an EVF option. At some point (end of 2014), it’s beyond stupid to not offer this valuable feature.
Regarding image quality, a true 14-bit file with excellent electronics means that the game is all about lenses for the D810, notwithstanding Nikon’s hyperbole about amazing NIKKOR lenses (hint to Nikon: buy Sigma).
Nikon NIKKOR lenses are certainly very good (some are excellent), but all ƒ/1.4 Nikon lenses have relatively low micro contrast, which impairs autofocus accuracy (or focus by eye), regardless of how good the AF system is.

There is more but I don't care to dig it up as I sit poolside watching my daughter and her friend perform some very suspect synchronized swimming.

Also, his take on Sony VS. Leica:

Sony is so aggressive it’s impressive. While I get grumpy over some crappy aspects of Sony physical and software design (and I’m baffled why such crap goes into an otherwise fine product), I have tremendous respect for Sony’s competitive chops vs the zero innovation at CaNikon and Leica (Pentax is doing some innovative stuff in the DSLR realm, but no full frame camera as yet).

The longstanding 'killer' advantage of the M system for light weight vs a DSLR remains, but consider just how low in weight the Sony A7R II system is (a little more bulk but)

A7R II: 625g with battery and memory card vs 720g for M240 + EVF, before adding a grip
Zeiss Batis 25/2: 335g
Zeiss Loxia 35/2: 340g
Sony 35/2.8: 132g
Zeiss Loxia 50/2: 320g
Sony 55/1.8: 281 g
Zeiss Batis 85/1.8: 475g

Sony camera bodies have been sucky and still are in multiple ways: cheap feeling, poor ergonomics, crapware in the menus, rapid depreciation*, and so on. But the A7R II usability is vastly superior to the Leica M for many purposes: autofocus, high-res EVF, much higher megapixels, 4K video, programmable buttons to suit one’s shooting needs, etc*.

I don't personally agree with his opinion on Sony ergonomics or menus, I find them fine, but many do. Sony appears to anger him because they are so close. He dislikes Nikon lenses (unjustifiably, in my opinion, but that is due to his paid Zeiss bias) and his favourite lenses are all currently for the FE system. I agree and wish I could currently afford both Batii and the 90 Macro.

Anyways, we are both two smart guys and yet have come to two different conclusions on this. We've done so without any name calling and have generally had a productive conversation. I shall open a Yellow Dog Chase My Tail Pale Ale to celebrate.
--
Dave Sanders
 
I don't know what to think of this. I guess I'll wait until I see something similar myself. I did think Iliah Borg's suggestion to use CC40M filter for scenes with a lot of sky (or blown out wave tops) is reasonable for any Camera with a Sony sensor (incl. Nikon & Pentax) since I've been seeing channel split raw histograms for a while on other makes even. Mind it doesn't seem to degrade the final output after raw processing for me anyway. I'm ready to try CC40M on bright red flowers in the sun to see what that does for clipped reds & yellows. (Dreaded magenta cast blow out)
A magenta filter on red flowers will give you more red, so more clipping.

Try a Cyan filter for red flowers. The results will probably depend on the particular flower and on the IR transmission of the filter.
No thanks. to colour filters on flowers. The A series cameras seem to have about 2/3 stop right side head room without any bias so the red channel is rarely off the edge. YMMV.
 
Rather than just looking at one photo, from one guy...has anybody else seen it this bad on their photos or on other webpages? The A7rii is starting to get out there and there are tons of pictures posted. I personally haven't seen this issue, but 1 doesn't make a population. So what is everybody else seeing?
I Have Seen it. Look at it full size. Oh yeah its from My 1dx. Mac



367dbfe9dfdb4ef699891781e5e0930b.jpg
 
Potential posterization issue with A7RII documented here: http://diglloyd.com/blog/2015/20150819_1136-SonyA7R_II-posterization-BlueLake.html

Lloyd shared the RAW with a reputable getdpi forum member and professional photographer, and he confirmed the issue, at least with this particular exposure, in this thread: http://www.getdpi.com/forum/sony/55836-seeing-any-posterization-issues-a7r-ll.html

Was a thread about this already, but it seems to have been lost. Perhaps we can all discuss this like adults, without the usual accusations of fanboy, troll, shill, willfully blind to any criticism of one's chosen brand, etc.

I would hate to think dpreview is attempting to quash discussion of a potential problem with a new camera. This is, after all, how products improve.
Whenever someone shares a view that WILDLY deviates from the norm and presents "test data/examples" but refuses to open up about the testing methods, or for a peer review is HIGHLY questionable. Its like a drug company selling "diet pills" and citing "in a test study" (that we conducted ourselves and didn't allow any third party peer review or testing) says it WORKS!
 
It is posterization issue too all right. When you have as few as 46 levels in the 44-138 range in the red channel - and that is over 1.8 million red pixels - it is too few:
46 levels sounds bad,
Yes, that's too few, especially combined with white balance that stretches the range by 2.4 times (but 2x on D810, which helps here), making it 105-331, with essentially only each fifth level populated and the "compensation" gaps now stretched from 4 pixel values to nearly 10.

Comparing to other channels, with twice the amount of levels over the same region of the image, and taking demosaicking into account, we have what we have.
you shouldn't need any red data to represent deep blue water
All the details are in the "unwanted" weak channel. Blue sky, blue water, details are in red channel. Open any image containing the sky, void the red channel, and see how it flattens the colour variation.
 
It`s jpg, i took photo from this post , think it doesn`t matter raw or jpg or dng.
 
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Potential posterization issue with A7RII documented here: http://diglloyd.com/blog/2015/20150819_1136-SonyA7R_II-posterization-BlueLake.html

Lloyd shared the RAW with a reputable getdpi forum member and professional photographer, and he confirmed the issue, at least with this particular exposure, in this thread: http://www.getdpi.com/forum/sony/55836-seeing-any-posterization-issues-a7r-ll.html

Was a thread about this already, but it seems to have been lost. Perhaps we can all discuss this like adults, without the usual accusations of fanboy, troll, shill, willfully blind to any criticism of one's chosen brand, etc.

I would hate to think dpreview is attempting to quash discussion of a potential problem with a new camera. This is, after all, how products improve.
where can WE find the raw file?

I have seen similar results before = bad color handling , profile conversion and with Nikon d800 camera

--
Member of Swedish Photographers Association since 1984
Canon, Hasselblad, Leica, Nikon, Linhoff, Sinar,Zeiss, Phantom 2+
Ernest Hemingway to Irving Penn:?“Your photos are really good. What camera do you use?”?Irving Penn to Ernest Hemingway:?“Your novels are excellent. What typewriter do you use?”
 
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You probably won't get it OP is long gone. And it's already post 149 😊
 

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