Well, I finally tried this as Adam suggests and it's clear that I never
actually tried John's TTL instructions. Perhaps the OM-4 works
differently but my OM-2n and OM-2s both change the shutter speed when
the compensation dial is turned. The shutter does not get locked at
1/60th as John says it will.
Is there some model that will lock the shutter at a flash sync speed
with the flash on?
Chuck Norcutt
Adam Long wrote:
>>> Here is how I do it with the same combo of OM-4 and T-20, T-32
>>> *and* F-280 using TTL OTF mode:
>
>
>>> 1. Make sure the camera is in Auto mode with the ASA set for the
>>> film speed you are using, and the EV compensation ring on the ASA
>>> dial is set to ZERO.
>
>
>>> 2. Mount the flash to the camera but leave it *OFF*. etc..
>
>
> Sadly, although this is a great, clear description, IT DOESN"T WORK!!
> Here's Why... (similar post as the last time the question came up...
> list old-timers may experience deja-vu...)
>
> In brief - you set the camera to expose the background correctly at
> around 1/60th. Then you turn on the flash and dial the compensation
> to underexpose. Now what happens? Look in the viewfinder - as you
> dial in the -comp, then bar graph goes up by the corresponding amount
> - the camera acheives the reduced exposure by using a quicker shutter
> speed - NOT by turning the flash down. So press the shutter, whether
> the flash is on or off, and the camera uses a faster sutter speed
> than the sync and the flash doen't fire....
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