On Monday, March 4, 2002, at 05:21 PM, Bob Walkden wrote: > my meaning in that was probably not clear. I'm not suggesting that it > doesn't use MTF data (it is the MTF programme, after all). What I > meant was that when the shutter speed is too slow for the optimum > aperture, it is unlikely to select the 2nd choice aperture (which must > be wider than the optimum) on the basis of best available MTF > performance, rather it's likely just to choose the smallest aperture > consistent with a fast enough shutter speed, i.e. it switches to > regular program mode. So I'd guess that the chip only contains one > aperture value - the MTF optimum - rather than a sequence of aperture > values in descending order of MTF optimality.
I have no idea if it does this or not. I had the impression that it does, but it could be based on list talk, I don't know for sure. -Aaron p.s. I have no cameras that have the MTF mode, and only one lens that is even an A lens and no Fs or FAs, so I don't know why I'm in this conversation at all. ;) - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
