erichard
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Thanks for the link. An interesting thread. I think you may be correct, but the only thing that makes me hesitate slightly is there is clearly a difference of opinion on that thread (ie. that ISO 200 HTP ≠ ISO no HTP with PP in camera via tags or whatever). The general upshot of the majority opinion is that HTP could prove useful for jpegs, the prime example being sports photogs who are shooting faced paced sequences, in need of jpegs for size and transmission. The clincher sentence in that thread was that when the OP removed the HTP flag from the EXIF (not yet sure how I would do this), the ISO 100 looked exactly like the ISO 200 HTP. Seems somewhat hard to believe it is that rudimentary, which makes me wonder.
As some have suggested, since most people endeavor to expose to the right, Canon should allow a subliminal preshot (like the 580EX system) in which the sensor detects blown highlights via the curve and adjusts things accordingly. From that baseline, they could allow us to customize what we prefer being adjusted, shutter speed, aperture, ISO, with minimums and maximums, and perhaps linked to focal length, but not necessarily 1:1 with shutter speed (ie. I sometimes like higher than 1:1 for auto ISO). It just seemed this could be automated so much better than it is, given it's simple enough for a chimp to due it (hence the chimping [sic, origin is actually different].)
My guess is that at some point in the future, we will dispense with the mirror system, view the scene via the sensor as in live view, only via a viewfinder of sorts that mimics the SLR viewfinder (blocking out daylight glare, and allowing the camera to be stabilized better with elbows on chest and camera smushed again the face a la the SLR.) That would allow realtime histograms, exposure control, etc. With batteries and LCD's improving (maybe with heat not interfering with more modern LCDs), it may become more feasible. That's what essentially occurs with camcorders, for years now. Come to think of it, the convergence between camcorder and SLR make only be a few iterations away from being complete, the 5DII being a major step in that direction.
The added beauty of that system will be no mirror flop, with its loud noise and vibrations, thereby obviating the need for a rangefinder system, a la Leica. Maybe this is actually where Leica should concentrate rather than on R-10.
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