At 02:26 PM 6/15/01 -0700, you wrote:
>>> Mark Dapoz wrote:
>>> > On Thu, 14 Jun 2001, Paul Farrar wrote:
>>> > > Whatever doesn't include a flash, because the 3 (I hear) needs a
>>> > > to operate the flash trigger. I know the 4T won't fire one on it's
>>> > > mechanical 1/60 without a battery.
>>> > I just looked at the schematic for the 3Ti and they do indeed route the
>>> > X sync contact to a mechanical switch. The remaining contacts for TTL
>>> > control go through the IC so they obviously won't work without batteries.
>>> > I wonder why they didn't do this for the 4Ti?
>>> > -mark
>>> I suppose because the shutter don't work without a battery either.
>>The shutter does work without a battery at that speed (1/60). That's the sync
>>speed, too, but the flash triggering is all computer controlled, so if
>>your battery dies, you can shoot at the sync speed, but without flash.
>>I believe the Leica M6 TTL does this too.
>I am confused by this. The OM4 shoots without batteries at 1/60 which
>you have to physically set at the red mechanical speed setting on the
>shutter speed dial. It does not fire at the green, 1/60 synch speed
The red 1/60 will operate at the right speed regardless of batteries, but
it will not fire the flash without live batteries. The flash trigger is
>Doesn't the OM3 shutter operate at all speeds without batteries, or
>what is the point of having it?
>My understanding of the Leica M6 TTL is that it has a mechanical
>shutter that fires at all speeds without a battery.
Yes, but if there are not live batteries in it, it won't fire a flash.
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