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 p.17 #14 · "Nikon Z9 vs Sony A1 The 10 main differences" | |
osv2 wrote:
the problem isn't caused by a dim oled in the evf, it's because factory eyecups don't block out the ambient light.
sunlight bleeding into the eyecup requires a brighter screen to compete with it, similar to how you can't see a smartphone screen in sunlight.
you can easily turn up the brightness on any sony evf, until it blows out the whites and ruins the wysiwyg experience... or, you can get a big soft aftermarket eyecup, and use an evf that you calibrated the brightness on, so it actually shows you the shot you'll be getting.
it works the same way as a quality oled tv in your house works... oled has the best deep blacks of any display technology, but it's not the best choice for bright rooms in daylight.
the drawback with oled is that whites and bright areas consume up to 3x more power than it does on the rear lcd screen, and nikon made that worse by jacking up the brightness levels in the oled evf, it's probably one of the reasons why the z9 has weak battery life.
if we were shooting hdr we might want a brighter oled evf, but then how can hdr be wysiwyg... canon, nikon, olympus, etc. are not wysiwyg platforms.
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Yes, covering EVF avoid light bleeding helps. However, anytime, you remove your eye from EVF and back to EVF, you need adjust your eye to get use to EVF again. That is just the way human seeing. This problem is very fundermental. I haven't found a single EVF based camera solve this for me. I wish they have AI based EVF tech that can adjust brightness based on scene. However, I bet it will be still challenge to work for example shooting from sun to shade on fly back and forth etc...
I can turn on histogram,(helpful but not raw based) but it will make a cluster EVF screen and distracting. however, this won't help viewing at all. 8 bit JPEG EVF feed will always has issue here for high dynamic range scene because there is 15 stop DR in sensor. Our eyes can make our subject at right exposure naturally. (OVF did a similar job here) but if you do that with EVF under HDR scene, highlight will be blown. If you want keep the highlight, subject will be dark.
Having strong ambient such like snow, beach etc post another challenge to keep right amount of lightness to view. Just like increasing or decrease LCD/monitor brightness to fight ambient or treat it as exposure tool is a terrible way to make judgement for final print.
In that sense, EVF is never real WYSWYG for me and it is a terrible tool to judge exposure under high DR daylight shooting. And for experienced photographer, WYSWYG is hardly needed. However, for focusing, for low light, for soft light shooting, EVF is a great tool.
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Dave Sanders wrote:
I think it's tricky...what does wysiwyg really mean in this context? I've never seen a camera that is truly wysiwyg in terms of exposure. In the film days, the film determined dynamic range and colour and, as in digital with OVF, the human eye/brain image capture device has way more dynamic range than film or sensor, hence the battle with getting exposure right. Accurate histograms are a great tool, but not infallible.
With the advent of EVFs, every EVF I've used, Sony or otherwise, isn't entirely accurate, not in JPEG and not in RAW. I'm always able to pull more detail out of highlights in post than the EVF ever indicates that I have. Ditto for pulling shadows.
For me, it still leaves me getting as close as possible with image review and the histogram then doing what I want to do in post.
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I agree. I never buy the WYSWYG term for EVF based camera personally. (it might work more than not during shooting though) It is just another useful tool having trade off. EVF need to be smarter to mimic human eye response. I can see that happen in the future from AI based tech to do scene based auto correction. However, at the time EVF fully mimic OVF experience or human eyes, What you see in the EVF guaranteed won't be what you get 
Edited on Nov 13, 2021 at 09:23 PM · View previous versions
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