About the easiest way is to pick a subject and set the camera to flash synch. Then set the aperture to wide open and take a test shot with TTL - should be reasonably well exposed. Next stop the lens way down and take another shot. The TTL sensor should have the flash fire longer to properly expose again. If both shots turn out reasonably well exposed, one can guess that the TTL is working. It is possible to stop down so far that the flash cannot put out enough for proper illumination. Certainly comparing between 2.8 and 11 should be a good enough test.
I would love to hear how the test goes. Thanks, Bruce Friday, November 7, 2003, 3:58:06 PM, you wrote: cbn> The manual tells you didly about the older TTL flashes. Only mentions the cbn> AF500,400, and 330 FTZ, the 240FT and the 360FGZ. cbn> I have the *D and a 280T but, frankly don't know how to check to see if TTL cbn> is actually working or not. cbn> Cory cbn> ----- Original Message ----- cbn> From: "Dave Miers" <[EMAIL PROTECTED]> cbn> To: <[EMAIL PROTECTED]> cbn> Sent: Friday, November 07, 2003 6:35 PM cbn> Subject: Re: *ist D and Flash >> Maybe maybe not. Some of the pentax models in the z line up did not cbn> support >> the auto setting, only ttl if I remember right. The manual should tell cbn> you. >> ----- Original Message ----- >> From: "Bruce Dayton" <[EMAIL PROTECTED]> >> To: <[EMAIL PROTECTED]> >> Sent: Friday, November 07, 2003 6:23 PM >> Subject: *ist D and Flash >> >> >> > Concerning using the *ist D with older analog TTL Flashes. Wondering >> > if it will work in TTL mode with my AF400T's or AF280T? I assume >> > manual and Auto mode of the flash would work, but would TTL work? >> > >> > -- >> > Bruce >> > >> > >> >> cbn> --- cbn> Outgoing mail is certified Virus Free. cbn> Checked by AVG anti-virus system (http://www.grisoft.com). cbn> Version: 6.0.536 / Virus Database: 331 - Release Date: 11/3/2003
