At 14:45 -0700 2/9/04, Jeff Keller wrote:
>"no matter what the f/stop or distance"
>
>I don't know how you're testing it but light from the T10 scatters and even
>a full dump may not be enough to light the scene if you're shooting beyond
>10 feet or so. ... It's been quite awhile since I used one but it seemed to
>me that even when using it to light up a pine cone 8 feet away the recycling
>time was pretty fast if the batteries were good. I'm not sure how you can
>tell it's a full dump other than recycling time ... after all the light is
>over in a flash ... and it won't completely blind you the way a full dump
>from a T32 or T45 will.
>-jeff
Tested it by putting a film chip in the gate to reflect during
"exposure", and focusing on a newspaper at 6 inches, at f/stops from
2 to 16, and at greater distances up to 8 feet in a dark room.
It's actually surprisingly easy to tell the differential output of a
flash by this means (as well as the recycle time, as you suggest).
The fact that it gave a full pop every time, no matter what, led me
to believe that while the sync line was working, either or both of
the control lines weren't.
See final message for conclusion.
Cheers,
Michael Kopp
Wellington, New Zealand
>
>----- Original Message -----
>From: "Michael Kopp" <mkopp@xxxxxxxxxx>
>To: <olympus@xxxxxxxxxx>
>Sent: Thursday, September 02, 2004 9:45 AM
>Subject: [OM] OM40 / OMG OM2 OM2n and T10 Ring Flash
>
>
>> Hello again, Olympians,
>>
>> (Or is that Olympusians?)
>>
>> As usual when I hit a brick wall in use or Web research about my
>> Olympus collection, I come to the experts.
>>
>> I have an OM40 (which is the OMG in the U.S.) and a T10 Ring Flash.
>>
>> The OM40 works fine with a T32, making it produce flashes of varying
>> brightness (power/time) depending on f/stop and distance as it's
>> supposed to do.
>>
>> It does not seem to do this with the T10, which produces what appears
>> to be a full-power flash no matter what the f/stop or distance.
>>
>> Yet the T10 is really just a modified T32 power unit, as I understand
>> it, and has the same 3-contact shoe and switch for contacting the
>> three contacts in a Shoe 4 or my OM40.
>>
>> I cannot find anything in any of the specs or instructions for either
>> camera or flash on any of the usual suspect Web sites, or by
>> Googling, which indicates which cameras the T10 is compatible with.
>> However, since the OM40 is a subsequent development (and refinement)
>> of the OM2 OTF technology, one would think that the T10 should work
>> with it.
>>
>> If so, that would seem to indicate that the T10 has a problem.
>>
>> Any information, experience, advice or opinion would be gratefully
>received.
>>
>> TIA and Cheers from the Antipodes,
>>
>> --
>> Michael Kopp
>> Wellington, New Zealand
>>
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