At 02:47 10/31/00 , Jay Maynard wrote:
>
>The OM-2 will accept two shoes, and it just so happens I have one of each.
>The Shoe 2, for use with the Quick Auto 310, has two contacts, one in the
>center - the normal hot shoe sync contact - and one directly in front of it.
>The Shoe 3, for use with the T-20 and T-32, has three contacts, the normal
>hotshoe contact in the center, and two in front of it offset to each side a
>bit. There's a depression where the Shoe 2's second contact is, presumably
>to make sure a QA310 mounted there won't act weird.
>
Hmmm, might be yet another benefit of the depression in the shoe.
If you look at the "T" series flashes (T-20 and T-32, and presumably the
F-280) you will find a small black protrusion in the location of this
depression in the shoe. Push on it and you will see the two smaller
contacts retract into the foot of the flash. I always thought it was on
the flash unit to retract the extra contacts for "flash ready" and "flash
quench" to keep the flash from acting weird if placed in a flash shoe for
the QA-310 or a non-OM flash shoe. Consequently any OM shoe made for the
"T" series flashes would require that depression to allow the contacts to
protrude. BTW, it also helps mount the flash by retracting the two
contacts as you start to slide it into the shoe.
-- John
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