In a message dated 7/1/2003 11:24:07 PM Eastern Standard Time,
jlind@xxxxxxxxxxxx writes:
> A quick history of OM flash units loosely tied to OM body introductions.
>
> OM-1 Introduction:
> Quick-Auto 300
> Shoe 1
> Normal Auto and Manual Modes
> NO TTL-Auto support
> NO Flash Ready LED support
> One shoe contact: Trigger
My edition of Heiberg describes the QA310, but not the QA300. Interestingly, it
does include as part of the OM system the PS200 and PS200 Quick, which I
believe were introduced with one of the rangefinders (maybe a Pen?)
>
> OM-2000 Introduction:
> T-18 and S20
> Shoe 1 for OM-1; Shoe 3 for OM-2 and Shoe 4 for OM-1n/OM-2n
> TTL-Auto: T-18
> Normal-Auto: S20
> Manual: T-1 and S20
> Flash Ready LED support: T-18 (except OM-1/OM-2)
> NO TTL Auto Cord T support on either
> Not intended for use with Power Bounce Grip 2
I'm pretty sure the T18 predates the OM2000 by a number of years, and was
introduced with the OM-88/OM-101 in the early to mid 80's. It's probably worth
noting that the T-18 doesn't support normal auto.
Paul Schings
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