Keep in mind that the duration of the flash is short compared to the shutter
travel time. A black bar is probably caused by the flash occuring when the
shutter is partiallly closed, not the shutter closing while the flash is
occuring.
I get left and right mixed up all the time but the shutter starts from the
film advance side of camera which I believe is the left side of the image.
So it would seem that the shutter has started to close before the flash
fires. Probably the camera decided it needed less than 1/60 sec to get the
right exposure?
-jeff
----- Original Message -----
From: <foefam@xxxxxxxxxxx>
> After getting my last
> roll of film developed I noticed that some of the flash shots had a black
> bar down the left hand side.
>
> The black bar showed up only in the sync cord shots; the T32's all came
out
> fine. I'm chalking it up to one of two things:
> 1) Flash sync at 1/60 only works with OEM flashes (T32, T20, etc.) and
> other brands and/or PC sync requires 1/30.
> 2) User error. It's possible that the PC sync/Alien Bees setup, I left the
> camera set to auto instead of manual. The OTF sensor may have sensed a
> properly exposed photo, especially with the T32 on the white background,
> and closed the shutter earlier than 1/60.
>
> I'm leaning towards solution 2.
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