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Message: <blockquote data-quote="Wildmoreway" data-source="post: 1639755" data-attributes="member: 50189">some 200 years ago some well qualified scientists said that all the air would be sucked out of train carriages at speeds over 20 mph, and 30 years ago a well qualified engineer told me that a 3,000 tonne train could not regularly run at 60 mph.Truth is that it is the market that determines what what will happen, and it is likely that a point will be reached where the performance of non dslr cameras with interchangeable lenses but without reflex viewfinders will satisfy the needs of the market and that market will include today's typical dslr user. Lots of people still hang on to and use film slr cameras but the market for them has virtually died out. Just a few years ago most slr users would not have dreamed of using a dslr and would have argued that digital will never replace film, but now they do use dslrs and the reason is down to lower cost and convenience.It is perfectly likely that within a year or two Canon, Nikon and others will introduce cameras equivelent to the micro four thirds cameras, that are able to use existing lenses. This will simply be down the fact that it will be cheaper and simpler to produce cameras that do not have the mechanics of the reflex viewfinder, the cameras will retain eye level viewfinders but it will be electronic rather than optical.The issue of bridge cameras is different to the issue of cameras with interchangeable lenses but I don't see bridge cameras vanishing any time some and I don't see them replacing camers with interchangeable lenses, its simply that tomorrow's camera with interchangeable lenses (still using existing lenses) is likely to have an electronic rather than a reflex viewfinder so technically it will not be a dslr.</blockquote>

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