On Sun, 17 May 1998 17:46:52 -0400, hermcam@mindspring.com wrote:

>Michael K. Stenstrom wrote:
>> Nick Alexander wrote:

>> > Can anyone tell me if I can use the SB24 on and F3 in TTL mode? If so,what
>> > adaptor do I need, the AS4/AS7, or what? Any comments on if this is a
>> > suitable flash for the body would be appreciated.

>> Sorry, you cannot use an SB-24 on the F3 in TTL mode. The mounting
>> is physically different, but so are the electronics. You will need
>> an SB-16A or 3rd party flash to work TTL on the F3. Nikon has some
>> other TTL F3's also but I am not sure of the numbers. One is a big
>> handle style unit and the other is a small rectangular unit (SB-17?)
>> The SB-16A works very well on the F3.
>> mk stenstrom
>> stenstro@seas.ucla.edu

>This information is NOT correct. I would be pleased to sell my Nikon
>SB-16A to you, but if you want to use TTL metering on an SB-24 with your
>F-3, you can but a VIVITAR F-3 flash adapter. B&H sells them.

Um, actually MS's info is correct - the Vivitar adapter does not
work, since it fails to communicate ASA info... If you count the
electrical contacts, one is not there that is needed by the flash
(the F3 system uses a mechanical system to communicate ASA info).
The result is that if the adapter works at all, it only works at
one default film speed.