The single BIGGEST problem that I see with the EVIL ands MILC types of cameras are the serious,serious ergonomic and menu-diving issues that their manufacturers seem blind to. Every time I read a review, or go to actually examine a new MILC camera, I am warned off or scared off by serious ergonomic problems, or just simply abysmally POOR controls. Like the new little Nikons, for example....zOMG...was the design team all high? The newer Sony cameras...WTF??? I dunno...the majority of the MILC cameras I have seen are too "fiddly" for my tastes. Too menu-based as far as controls and parameter adjustments go.
I see more simplicity in the Canon Rebels and the low-end Nikons like the D3100 and D5100. Ergonomically, the slab-sided, slippery bodies of say, the new small Nikon mirrorless models make them kind of unappealing to me, and then when I READ thorough, extensive reviews of them (the Nikon's specifically, but also the Sony and Panasonic and Oly offerings) I encounter all these negatives and caveats and workarounds and complaints. As a former salesman, I know first hand that MANY consumers value simplicity and directness of control over complexity and menu-diving. SO far, the MILC cameras seem to be designed more by committee and less "by shooters".
Simply put: the 35mm-style, autofocus, compact SLR type camera has been refined over many,many years and many models. MILC cameras are still finding their way, design wise, and there seems to be a LOT of bad design, making its way into final, production models. Not sure how that happens. Until the MILC offerings get much better, I see very little chance that the entry level d-slr type cameras are "dead in the water".
Good points about the ergonomics and control. In fact you make a good control-subject to test the idea. Would Derrel switch from a F3>F4>D1x>D2x>D3, twenty-five year progression, in preference for a mirrorless camera (as a replacement for SLR as an amateur/pro use camera?). I wouldn't think so, due to sensor/DOF, AF system, ergo, form, control.
Overread and curveshooter IMO make excellent points about the placement and philosophy of Olympus, Panasonic, Canon and Nikon. Panasonic put the optical SLR on ice after the L1/L10. The L1 utilised a pellical mirror system which was poorly received, although not as bad as some internet reviewers were stating. C&N aren't going to undermine their middle/high-end DSLR product line which accounts for something like 60%+ of global market share. Sony perhaps are big enough, so gigantic that they could push mirrorless as hard as anyone else and still benefit even though their A system is a major line too. I agree that Olympus seem to have crafted a perception of offering a product which is 'classier', aimed at the adept user. A sort of discerning enthusiast that's neither shooting on a tight budget, nor either a Leica owner (although I know of Leica/Olympus owners as well as Olympus>Leica progressions in upgrading). Leica+Panasonic is an interesting partnership; Sony+Zeiss is a natural one. Samsung+Schneider? ..probably mutually a good thing although it's a shame that Schneider doesn't up their game; in terms of pedigree, they are premier league.
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