I have a 45 year old rangefinder that does the same thing. You can hear .
. . and feel . . . the mechanicals "changing gears," especially at the
slower shutter speeds when turning the shutter speed knob. Imagineer's
description is dead on. My OM-1n also makes a slight noise switching
between the slower shutter speeds, but it's subtle. The shutter speed
detents undoubtedly mask feeling it through the shutter speed ring.
-- John
At 06:02 5/22/00 , Marc wrote:
>Thanks for the information. So, the noise is 'normal' for a relatively
>new camera? I wonder since my OM-1 and my M6 have mechanical shutters
>and they don't make any noises or otherwise betray their mechanical
>inner-workings... and the OM-3Ti is far newer than both of them!
>
>- marc
>
>imagineer@xxxxxxxxxxxx wrote:
>
>> Hi, Marc -
>>
>> Remember that your OM-3 uses a mechanical governor (called an
>> "escapement retard") to control the shutter speeds. That's
>> basically a variable train of gears and mechanisms that delays
>> the travel of the second curtain to give various shutter speeds.
>> As you change the shutter speed dial, you're basically changing
>> the combinations of these gears and mechanisms which will come
>> into play when you fire the shutter - you are, quite literally,
>> "changing gears" as you change speeds (at least from speeds of
>> 1 second to 1/30th). The sound you hear is the sound of the
>> mechanical devices as they engage and disengage, depending on
>> the setting you've chosen.
>>
>> Imagineer
>
>
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