Hello Frank.
I recognize your problem - I have had to deal with it some time ago
(not because of lack of T-32 flashes, but because of the physical
impossibility to have cables lying around in my set-up.
If you use one T-series flash on TTL and one or two slaves triggered
by the T-flash, than the only flash which the camera can cut-off
(which is what TTL does) is that T-flash.
If the slave doesn't give too much light, this works out fine. If the
slave gives too much power, cutting off the T-flash doesn't help at
all
So you will have to try and judge and use a relatively small slave
flash (or set it to a low output, if possible). In my case this
worked. I don't know if all slave units will be fast enough to give
their output within the TTL-flash time - which of course is required.
Frank van Lindert
Utrecht NL.
On Tue, 30 Mar 1999 01:28:35 -0600, "Kinkead, Frank W"
<Frank.Kinkead@xxxxxxxxxxxxx> wrote:
>I'm confused. From previous notes, I'm under the impression that my OM-4
>(with a T-32 or T-20 on it) will also include a slaved flash unit in it's
>Off the Film Plane exposure control (see Ken's note below). In other words,
>the OM-4 measures the exposure needed - weighing all light coming through to
>the film plane; TTL sources and others - and terminates the shutter upon
>proper exposure.
>
>If this is the case, what information is going between to the OM-4 camera
>and T series flash TTL capable flashes ? Isn't the camera really
>controlling the amount of flash that's used ? What is the TTL flash
>circuitry adding to the picture ?
>
>My original goal - and original question to the group - was based on finding
>a way to have a second/third flash at angles to subjects to handle harsh
>shadows across faces and backgrounds. Could I skip the expense of adding
>two more T-32s that are "TTL" and simply by two slave units and two cheaper
>flashes that would be positioned to the sides of the subject and that would
>simply go off when the camera mounted T-20 goes off ?
>
>Chip Kinkead
>St. Louis, MO
>
>> ----------
>> From: KenK1ZYW@xxxxxxx[SMTP:KenK1ZYW@xxxxxxx]
>> Reply To: olympus@xxxxxxxxxxxxxxx
>> Sent: Sunday, March 28, 1999 1:48 PM
>> To: OLYMPUS@xxxxxxxxxxxxxxx
>> Subject: [OM] OM-4 Flash Solution
>>
>> Date: Fri, 26 Mar 1999 09:08:39 -0700
>> From: Clyde Soles <csoles@xxxxxxx>
>>
>>
>> > Like
>> >I said the limit is nine T series flashes can be controlled by the OTF
>> >control of the camera.
>>
>> FWIW you can have TTL controlled wireless slaves too which would mean no
>> limit and no cables. The catch is, no Oly at present :-(
>>
>> -----
>> FOR ABOUT 20 BUCKS A GOT A VIVITAR FLASH SLAVE UNIT. AND stuck it on the
>> T20
>> flash shoe accross the room. put the t32 on the camera BG2 and low and
>> behold
>> the T20 fired. Cant use TTL auto but can use manual or normal auto. Anyway
>> I
>> played with it as a Hair Light behind the subject (usually my way over
>> strobed
>> wife).
>>
>> Cheers
>>
>> Ken (strobe head) M.
>>
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>
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