----- Original Message ----- From: "J. C. O'Connell" Subject: RE: *ist series support for setting the aperture on the lens (was: ist D AE mode for K & M lenses)
JC, Have you used the istD with a pre A lens for anything other than a bitch about it in a camera store? The answer will either be yes, or no. ======================================================================== ================================== I don't give simple yes no answers, when much more is needed. I have used all of the following many times: 1. Cameras with fixed exposure (disposables) 2. Unmetered manual 3. External Metered manual 4. TTL SSTOPDOWN Metered Manual 5 TTL Open aperture Metered Manual 6. TTL STOPDOWN Aperture priority AE 7. TTL Open aperture Aperture priority AE 8. TTL open aperture Shutter priority AE 9. TTL open aperture Programmed AE I stongly prefer to use only 3, 5 and 7. While #9 might have its occasional valid need, I havent ever really needed it because based on my vast experience with #2,#3, and #4 I can generally get the fstop in the ballpark and use #7 instead of #9. This ist D mode green button mode (#10) is new but based on the description of operation with K/M lenses it is a hybrid of #4 and #6 above. While it is probably easier to use than #4 or #5, the fact that it is STOPDOWN is not as good as #5 or #7 because smaller fstops will reduced the meter sensitivity greatly. It is certainly INFERIOR to to #7 in every way. Not as automated, as fast to use, and the meter sensitivity reduction is worse. If the *istd had the very simple aperture cam sensor, it could do #5 & #7 intead of #10 or possibly all three #5, #7, and #10 which would be a major improvement. NO, I have not used an *istD. I will not consider buying one either for many reasons, the K/M lack of support is just one of them. There is no point is trying a camera I know do not want based on its features/ specifications or lack of them. JCO
