Re: Using Older lenses and Flash Systems with *ist D/DS???

[Paul Sorenson]

Unless you *absolutely* know the trigger voltage is low enough to not 
damage the *istD/Ds it's a good idea to use a Safe Sync hot shoe 
adapter.  It reduces the trigger voltage to a safe level and has the 
added benefit of giving you a PC connection if you need it for a sync 
cord.  See link for more into -

http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=227625&is=REG
It's currently out of stock at B&H, but Adorama has them for 5USD less 
then B&H.

                -P
jtainter wrote:
"The second question is on the flash systems. Will the D/DS control a
Vivitar 285 flash unit; both with and without the remote sensor? Are
there any issues with the triggering voltages required for the 285?"
There might be. I don't have this flash, but have read a lot of posts
on it. Apparently earlier versions had very high trigger voltages --
enough to fry a D or DS. Later versions had it down to 6 volts or so,
which is apparently safe. I would research this thoroughly before
connecting this flash to your camera.
Best results are from a P-TTL flash. Some people get good results
from TTL flashes, some don't. Some people have gotten good results
using the cut-off sensor on some flash models, bypassing TTL.
Joe