Godfrey
Well-known member
All this talk about AF doesn't intrigue me at all because I see AF as an occasionally useful convenience rather than as a necessity. I have as yet found no reason to trust AF to do the job that my eyes do so well when focusing a camera, all the AF systems I've seen and used so far miss far more frequently than my eyes do when the scene is anything other than very simple, on all cameras. There are simply times when it would be convenient, such as when critical focusing is less important (small aperture used with a wide lens, zeroing in on the eye in a portrait shot, etc).
Be that as it may, I'm more interested in what is to me a more basic and yet still difficult aspect of an EVF camera: the ability for the viewfinder image to be seen clearly in bright sunlit circumstances. The fundamental characteristic of a reflex viewfinder, that it is brighter and easier to see with whenever the light levels go up, has not yet been fully achieved in any EVF camera I've used. The Olympus E-M1's adaptive illumination of the EVF has so far been the best at this, the Sony A7 was pretty awful, the Leica SL only just okay, the Leica CL about on par with the SL. Earlier EVF cameras aren't even on the same scale. An EVF to be used in bright sunlight needs more illumination than even a simple match to the ambient light suggests because users tend to be wearing eye protection (sunglasses) in such circumstances.
It would be nice if Nikon innovated in this regard and truly allowed the viewfinder panel to amp up enough so that its full dynamic range was available for viewing when light conditions were bright and contrasty. Think of a ball game on a sunny Summer afternoon ... our eyes can see into the inky shadows where the detail is as well as in the bright highlights, but the EVF in most cameras doesn't allow us the same capability. I can imagine some real-time HDR work operating on the incoming signals could do it, finally matching the way that EVFs become so much easier to see in low brightness levels than a reflex finder.
That's what I'm most interested to see about the new Nikon.
G
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Oh yeah: Regards the flange diameter, it's obvious from the problems reported by lens makers (Sigma and Zeiss that I recall) that Sony went too small on diameter for the mounting flange in order to keep the cameras small (something like 46-47mm inside diameter @ 19mm register). Leica chose a very large flange diameter for the L-mount (51.5mm inside diameter @ 19mm register) to accommodate both APS-C and FF formats with a ratio of 1.19:1 flange to (FF) sensor diagonal; the TL/TL2/CL compact line bodies with the smaller sensor are a bit larger than they might be otherwise. It will be interesting to see what Nikon has done when the product ships as that will give us an idea of what their future product lines might be in terms of different sized bodies, and maybe different sensor formats.
Be that as it may, I'm more interested in what is to me a more basic and yet still difficult aspect of an EVF camera: the ability for the viewfinder image to be seen clearly in bright sunlit circumstances. The fundamental characteristic of a reflex viewfinder, that it is brighter and easier to see with whenever the light levels go up, has not yet been fully achieved in any EVF camera I've used. The Olympus E-M1's adaptive illumination of the EVF has so far been the best at this, the Sony A7 was pretty awful, the Leica SL only just okay, the Leica CL about on par with the SL. Earlier EVF cameras aren't even on the same scale. An EVF to be used in bright sunlight needs more illumination than even a simple match to the ambient light suggests because users tend to be wearing eye protection (sunglasses) in such circumstances.
It would be nice if Nikon innovated in this regard and truly allowed the viewfinder panel to amp up enough so that its full dynamic range was available for viewing when light conditions were bright and contrasty. Think of a ball game on a sunny Summer afternoon ... our eyes can see into the inky shadows where the detail is as well as in the bright highlights, but the EVF in most cameras doesn't allow us the same capability. I can imagine some real-time HDR work operating on the incoming signals could do it, finally matching the way that EVFs become so much easier to see in low brightness levels than a reflex finder.
That's what I'm most interested to see about the new Nikon.
G
—
Oh yeah: Regards the flange diameter, it's obvious from the problems reported by lens makers (Sigma and Zeiss that I recall) that Sony went too small on diameter for the mounting flange in order to keep the cameras small (something like 46-47mm inside diameter @ 19mm register). Leica chose a very large flange diameter for the L-mount (51.5mm inside diameter @ 19mm register) to accommodate both APS-C and FF formats with a ratio of 1.19:1 flange to (FF) sensor diagonal; the TL/TL2/CL compact line bodies with the smaller sensor are a bit larger than they might be otherwise. It will be interesting to see what Nikon has done when the product ships as that will give us an idea of what their future product lines might be in terms of different sized bodies, and maybe different sensor formats.