Don, It has been discussed before the *istD doesn't perform very well with TTL flash. Your best bet is to use the sensitivity setting at ISO400, as that is supposed to give he best results. YMMV. Just give it a try. I found the same problems with my external Metz flash. When I switch from TTL to Automatic, the results are very good. That is using the sensor of the flash instead of the camera. The ISO and aperture settings, as well as focal length information is also in this position transferred o the flash, so it operates just as easy for me as TTL.
On Saturday 16 October 2004 13:39, Don Sanderson wrote: FJW> I just tried this test again at 15 feet. FJW> Same gradual variation except this time all FJW> shots were 3-4 stops underexposed. FJW> ??? FJW> FJW> Don FJW> FJW> > -----Original Message----- FJW> > From: Don Sanderson [mailto:[EMAIL PROTECTED] FJW> > Sent: Saturday, October 16, 2004 6:30 AM FJW> > To: PDML FJW> > Subject: *ist-D TTL Flash with M Lenses? FJW> > FJW> > FJW> > Has anyone played with this enough to figure it out? FJW> > I took a series of flash shots with the built in flash. FJW> > 35/3.5 M lens from about 3 feet. FJW> > All at 1/125 second at full stop increments from 4 to 22. FJW> > Camera set at "M", of course. FJW> > FJW> > They don't show anywhere near a full stop difference FJW> > from one frame (oops!, "capture") to the next but more FJW> > of a gradual 1.5 - 2 stop difference overall from 4 to 22. FJW> > FJW> > As usual, I'm baffled. ;-) FJW> > I'm used to the 5n and Super A which do perfect TTL FJW> > flash with nearly any lens type or setting. FJW> > FJW> > Any idea how this does/should work on the D? FJW> > Nothing I can look up since it's an "unsupported" FJW> > feature. FJW> > FJW> > TIA FJW> > Don FJW> > FJW> FJW> FJW> -- Frits W�thrich
