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Re: [OM] om-10 vs quick auto 310 flash

Subject: Re: [OM] om-10 vs quick auto 310 flash
From: "John A. Lind" <jlind@xxxxxxxxxxx>
Date: Sat, 10 Jun 2000 19:44:01 +0000
At 20:37 6/10/00 , Tom Trottier wrote:
>Hi Gary,
>
>At 2000 January 17 - Monday 22:21, Gary Reese <olympus@xxxxxxxxxxxxxxx> 
>spoke about *Re: [OM] om-10 vs quick auto 310 fl...* saying
>
[snip]
>
>Also, no TTL with OM-10 I think.
>------------

Hmmm, yep, you're right, no TTL with it or any other flash unit, Olympus or
otherwise.  Only two contacts on the OM-10, the flash trigger center
contact and the "flash ready/flash OK" contact.  The third contact missing
from the OM-10 (along with the circuitry to support it) required for TTL is
the "flash quench."

Dedicated flashes such as the T-20 and T-32 must be used in "Manual" or
"Normal Auto" modes, and cannot be used in "TTL Auto" mode with the OM-10.
"Normal Auto" uses the sensor inside the flash to quench itself (just
behind the center of the "O" in "Olympus" on the front of the flash).

-- John

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