So I now have a T20 & a T32. (The T20 has a calculator in feet, as I
bought it in California, the T32 is in metres..) I was planning on
selling the T20, but I get the impression the T32 is almost too big to
mount on the flash adaptor of the OM1. Its a heavy beast, and a lot of
the weight is a long way from the mount. Can this be a problem ??
Should I hang on to the T20 for use on the body ??
[Dave Bulger] While I don't own a T32, I've heard that cracked mounting
feet is a very common problem with them - they're too heavy! If you can
use the T20 on the body and the T32 on a separate mount, you're probably
ahead of the game.
My next question is a lot more basic, but I still can't get my head
round it.
What exactly is the function of the X/FP switch when shooting
manually, which is all the OM1 does, and how should I set about
shooting with a flash...
As far as I can tell in the X position the flash is timed to flash
when the shutter is open when shooting at 1/30s. i.e I should set the
shutter speed to 1/30s when shooting with a flash. The aperture is
then chosen from those available on the calculator if in auto mode (2
choices on the T20, 3 on the T32), or manually, based on the number
(20 or 20/32) and the aperture, I guess... What is the relationship
between 20/32 and aperture and here do the numbers 20,32 come from
anyway ??
And FP??? Whats that all about. I get the impression it is related to
real live flash bulbs, but thats it !!
[Dave Bulger] The X/FP switch determines when the flash is fired in
relation to the shutter opening. X is for electronic flash sync, and FP is
for flash bulbs. Electronic flash is considered pretty much instantaneous,
so the flash is fired at the time the shutter is opened completely. Flash
bulbs require some amount of time to actually fire, so the flash is fired
before the shutter is opened completely, with the goal of having the bulb
completely lit at the same time the shutter is opened completely.
HTH!
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