Originally posted by ramseybuckeye
Nobody has had the guts to make a manual focus only camera because they don't want to lose money. There's always somebody clamoring for something, but good market research will tell you if it will sell, and that's why nobody has made it.
I agree with you in the most part. Except that Sony, either on purpose or accidentally, just about did that with the Nex camera series - and enthusiasts with their legacy lenses loved the camera for that reason. As i understand it, the focus peaking technology was developed for video and then Sony transferred it to digital cameras (more assumption on my part, anyone got the facts :-))
When it works, focus peaking is even better than AF because it shows one where the dof is. As one adjusts the focus, one can see this shimmering cloud move towards one or away from one - so cool and what a lesson for beginners. Alas, focus peaking doesn't work well, if at all, in low light or low contrast areas, so apparently Sony built in the magnified view approach for focusing, so one can choose either of the approaches as appropriate for manual lenses.
I'd like to see a specialized camera for "landscape photography" rather than just one for manual lenses. It seems like too many cameras are specialized for NFL football situations, but landscape shooters have some specialized needs. There's the manual lens needs as you mention, plus it would be nice if they made cameras with longer shutter speeds, whats so sacred about 1/30s which is the slowest for many cameras. Why can't that be 5 seconds - would save pulling out and rigging the shutter cables in many situations. I'm sure there are other things that would appeal to landscape shooters. AF lock button for a third thing. Once you have your camera on tripod for a landscape shot, theres no need for refocusing every shot - dang silly to do so.
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Regards the discussion on killer features, i think the adjustable AA filter is close to that that killer feature. I think that Pentax should advertise that more, as in :
Nikon feels it necessary to sell you 2 cameras to give you a choice between AA filter or not, e.g. D800e/D800. Pentax with its K3, has adjustable AA filter all in one camera.
I think either Canon or Nikon would find it difficult to replicate that feature in any short amount of time.
BH Photo actually lists that Pentax feature in discussing the best cameras of the year, and so do several other reviews.