Hi Joel! You'll probably get many answers, but I've had a 2n for a long,
long, time, so I'll dive in and pay the list back for all the answers I've
gotten on other stuff.
>From: Joel Wilcox <jowilcox@xxxxxxxxxxxxxxxxxxx>
>I lack a manual for my OM-2n.
Call 1-800-221-3000 and ask for one. I don't know if its so old they won't
have them, but one of the privilages of owning Olympus is free manuals --
take advantage!
>1) The "Check:Reset" setting clearly allows one to check the batteries.
>What is "reset"?
This will close an open shutter, assuming there is enough battery left. You
can prematurely end a long exposure this way, since the OM-2n will take
incredibly long exposures -- 30 minutes or so -- which Olympus shortened on
the newer bodies to a couple minutes or so.
>2) The proper setting to achieve OTF/TTL flash is auto, I believe. I have
>apparent success with my Vivitar 4600 with dedicated module for Olympus.
>
>I'm curious as to what should happen if one uses the manual setting with
>flash?
I believe that above 1/60th, the flash will not fire. Below 1/60th, the
flash will fire without TTL metering -- it will be full manual or
flash-controlled auto, depending on the setting of the flash itself.
>At 1/60 at F11 in auto I get a TTL flash exposure of such duration that the
>flash must recycle for about 5 seconds before the ready light is on. With
>the same settings but on manual, the flash requires almost no recycling and
>is instantly ready. Why is this?
Hmmm... can only guess... First off, "1/60th in auto" is a bit
contradictory. I assume you mean the camera is set to auto, and the meter
indicates 1/60th.
Does the flash "know" your are set at f11? To use the flash's own auto
exposure, it must be set to match your lens/film light sensitivity, so it
knows how much light to produce. This means that for a given film ASA
rating, you must use a particular f-stop, or a few different f-stops that
are selected by a switch.
I don't know this particular flash, but on the T32, you have a choice of
three different aperatures at which to shoot, and at ASA 100, f11 is not
one of them!
My guess is that you have the flash set for an "auto" setting that assumes
the lens is much wider than f11, and that it is then merrily producing
enough light to properly expose at, say f4, and then sitting back and
saying, "gee, that was easy -- hardly used any energy at all!"
The only other thing I can think of is that you are using a telephoto lens
with a distant subject. In TTL mode, the camera will properly control the
flash to produce enough light for whatever is coming through the lens,
whereas in flash-auto mode, the flash's sensor and light output probably
are looking at the area covered by a 50mm lens or so.
Bottom line -- I'll bet when you process the film, only the TTL shots will
be properly exposed. TTL is wonderful, and should be your preference unless
you are going for some special effect or situation.
: Jan Steinman <mailto:jans@xxxxxxxxxxx>
: 19280 Rydman Court, West Linn, OR 97068-1331 USA
: +1.503.635.3229
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