Steve said:
jrista said:
We aren't talking cell phone distances here. Most EVFs are recessed at around a quarter of an inch or so, pretty much always less than an inch. At around an inch, 3000-5000ppi would do it, but at a quarter of an inch, people with better than 20/20 vision are going to see pixels.
Additionally, you must not shoot action. When your an action shooter, your eye LIVES in the viewfinder. It's never away from the viewfinder. I have spent so much time with my eye pressed up against my VF while photographing shorebirds that when I take my eye away and look around, I have to close my eyes and wait for them to adjust to the brighter light.
Not everyone is a landscape photographer or other kind of photographer where you spend a small amount of time looking through a viewfinder. Some of us live and die by the viewfinder...it is one of the single most important factors for choosing a camera body, alongside AF and frame rate (again, not everyone needs 25 stops of DR at ISO 100.)
So it isn't a weird complaint. It's a complaint based on the way I use my camera pretty much every single time I take it out and shoot something. If I have a camera in my hands, chances are, I'm looking through the viewfinder. The quality of the VF is of the utmost critical importance to me, so I think the complaint is entirely warranted and legit.
Ok, like I said if it bothers you that's your thing but I still don't understand
why it bothers you. So what if you can see the pixels? It doesn't affect your ability to frame an image in any way. Refresh rate, battery life, those are complaints that I can understand because they have a real affect on the ability to make an image but being able to discern the individual pixels does not. To me, it seems like complaining that an OVF isn't contrasty enough or something.
Seeing pixels causes eye strain. The pixels of current EVFs, for the given viewing distance (remember, visual acuity is relative to ANGULAR size, not absolute size!), are HUGE. I mean not just "kind of visible"...they are big and obvious. If I had to look at something like that for more than a few minutes, I'm guaranteed to get a terrible headach. When your focused that close, your eye has to fight between seeing pixels, and seeing image detail.
The ever-constant march towards higher and higher pixel density smartphone screens was to eliminate visibility of pixels. They have achieved that for 8" viewing distances with 400-500ppi screens. Anything less than about 400ppi, and the pixels still aren't small enough, and you can still get eye strain from viewing your phone too much, especially if your one of those who view it 6" away. It's the same deal with EVFs...we need a lot more resolution to make pixels a non-factor for 1/4" eye relief...however for people with higher visual acuity, it is physically infeasible to create pixels small enough that your eye naturally blurs them out of existence, thus eliminating the possibility of eye strain.
For someone like me, who lives with his eye to the viewfinder whenever a camera is in hand, pixel size is utterly critical. That's why I always say that I'll cling to my OVF until someone prys it from my cold, dead hands. The nature of ground or laser etched glass is very different from pixels. It bends and warps the light a little bit, but you don't have that hard, jarring pixellation you get with an EVF. Therefor, no headache.
You can belittle the needs of photographers like me all you want, but that just means your ignorant and cannot expand your mind even the minimal amount required to see the situation from a broader scope than your own.
Steve said:
I do shoot action almost exclusively and I appreciate the OVF in my 1DIV but thats because it is large and bright and has a refresh rate of c. If an EVF had a refresh rate that was indistinguishable from reflected light, I would certainly be interested because of all of the other advantages that could be conferred, such as brightening the scene, magnification or overlaid information like zebras/focus peaking. It may be that it won't ever work for what I do but there is certainly potential in the technology and it seems weird to me discount it out of hand because you can see the pixels if you concentrate on finding them.
Well first, I don't have to concentrate on finding them. Your making an assumption that is incorrect. The pixel sizes of EVFs today are MONSTROUS for the given eye relief of the EVF screen itself. It doesn't take any effort at all to see the pixels...they are sitting right there, gigantic and intrusive, and there is nothing I can do about it. Double the current pixel density, and it would certainly be harder to see them, but the strain on the eye from looking "through" a grid of pixels to see an image would still exist. Triple current pixel density, and that might do the trick...but as I said, by that point, your starting to filter out red light...so color fidelity is going to suffer.
A lot of the EVF "features" that people think are exclusive to an EVF are not necessarily exclusive to an EVF. Canon has used transmissive LCD overlays in their OFVs for some time. There is no reason they couldn't upgrade the TLCD to be full color and higher resolution. Then, you could have most of the benefits of an EVF without the drawbacks associated with small pixels, low frame rates, limited dynamic range, low color fidelity, etc. You could do focus peaking, zebras, overlay a histogram, and who knows what else with a color Transmissive LCD overlaid on top of an OPTICAL preview of the image. About the only benefit you wouldn't have would be DOF preview, however at such a small scale, you aren't going to get an accurate representation of DOF regardless, so I consider that a relatively moot point.
There is a bigger world outside of the EVF box. There are a lot of possibilities that aren't necessarily tied to the limitations of
electronic VFs, and those possibilities could be realized to the benefit of those who truly, fundamentally rely on the benefits of an OVF without the consequences of things like eye strain and constant headaches. (And those consequences are very real...out of the seven plus billion people on earth, I highly doubt I am the sole individual who has good visual acuity and experiences eye strain from looking at large pixels.)