I'm sorry if my om-4t sarcasm was miss interpreted. I know the OM-4t quite
well, and even downloaded all the patents on the internal circuits at one
point in time, as well as having built my own shutter tester and exposure
testing for it. Of course, if it really needed adjustment, John H is the premier
source. I used to check the shutter travel time. The OM-4t weakness is
at 1/2000, where exposure variation across the frame is most likely.
Fortunately, that is not an often used speed. But the OM-4t is quite a bit
more reliable than the Leica M6 shutter, whose top speed is 1/1000
and has even more variation, according to my testing many moons ago.
I can't say that I will ever know any modern digital camera as intimately as
I know the 4T. The exposure meter integration circuits are still in my mind.
As well as how the on/off works. Even in B or M60 mode, the circuits are
still active. There is no way to turn the OM-4t off, other than to remove the
batteries. B and M60 just limit the possibility of activating the exposure
meter.
Wayne
At 03:08 PM 12/20/2008, you wrote:
>Press the lock button (bottom left of the lensmount) and move shutter speed
>to the red zone ( B, 60 ).
>Remember to move the speed ring out of the red zone when you resume
>taking photos.
>
>Brian
>
>Wayne wrote
>
>> Oh, and can you refresh my memory, where is the on off
>> switch on the om-4t? I'll have to fish some 357batteries
>> out of the cat's laser pointer though, and I forget, do I have
>> to wind the film all the way to 1 or is it 0 when I load the film?
>> And do the highlight shadow buttons work like photoshop's
>> highlight/shadow adjustment? It's snowing in New England
>> so I may need one of those buttons tomorrow.
--
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