I have tried LV on my DSLRs a few times, I thought that I need to learn what is so great about them. I must say that I find them absolutely useless for most situations. The only use I have for the back display is for setting menus and checking images taken with the camera, zooming in to 100% to see if the image is a keeper or not.
I have spent the better part of my life behind cameras, 35mm, square Hasselblad, 4x5 and 8x10 view cameras. They have all worked for me for their use. The 35mm and the square Hassy is for fast work and the view cameras for precision work, food photography, architectural, etc. Composing an image with a mobile camera like a 35mm is best done bracing it against your face and use your arms to stabilize the camera. View cameras are shot from a tripod from under a dark cloth or a reflex hood to keep disturbing light off the ground glass.
What I find awfully discomfortable with the LCD panel of a digital camera is that one cannot compose and keep the view stable while shooting and the image might be hard to view under various light conditions. Reflections off the screen while the camera is not stable, equals to awful in my experience.
So, I only would ever use the back LCD panel for myself if the camera would be on a good tripod and if I had a dark cloth to shield the LCD from side or back light. As of EVF I only would buy into a system if it would be absolutely equal to the quality of a pentaprism based viewfinder.
If and when the EVF will be as correct as a professional DSLR viewfinder both in correct colour and optical quality then I'll consider it. Also, the refreshing rate of the EVF has to be on par with the fps rate of a top of the line DSLR. Let's say that it will be able to repeat newly refreshed images from 8 to 10 fps or above with absolute clarity. Also, the quality of display should remain as stable as a pentaprism during the life cycle of the camera. Let's say at least as long as the expected life cycle of a professional shutter and beyond, 300, 000.00 - 400, 000.00 actuations.
I do not understand the hype about mirrorless for serious work that requires durable instruments like a Nikon D4s or a Canon EOS 1DX or the new D5 and EOS 1DX Mk II. Yes, the camera body can be somewhat lighter at the expense of loosing some other features and specs. However, one still need the bulk of professional lenses and in many cases that is where the bulk of the equipment is originated from.
Then, there is the balance of the equipment. I do not need a light body that I need to hold gingerly when I use a 300, 500 or 600mm pro lens. Or with quality zooms that also have a good heft to them.
All this said, I am absolutely not against mirrorless systems for certain use. Just that I would not use them for my photography. I need sturdy and swift cameras with a wide range of lenses, especially telephoto lenses. I also cannot see how serious photography can be conducted by handholding a camera while trying to compose a sequence of photographs on the back LCD panel. It is just unacceptable for me as a photographer. I do not mind to see family snapshots and travel memories recorded with phones and alike but that is about it for usability I see them acceptable.
Of course there are few "artist" using cellphones for commercial applications but I see them as the oddball "artsy" folks who make their fame with their eccentricity. There is always a market for a few of those............ :-D
Best to all, AIK
