Re: [photo-3d] Re: Realist and Flash

[Dan Vint <dvint@xxxxxxxx>]

The 1/25 that is needed is for flash bulbs. Unlike a strobe unit which is
nearly instantaneous a flash bulb has to get started before it finally reaches
its peak output. A strobe if it is going to work should fire at every setting
and the only problems that you would have is a partially exposed image. In 
my Canon F1 if I set the speed wrong one side of the image is unexposed because
the curtain is not fully open (I can even get a slit of exposed area with some
settings). With the realeast you should be able to shoot at any speed and then
find any where the image is less than what it should be.

..dan

> 
> George
> 
> The flash will only work at a shutter speed of 1/25s on my camera. I
> observed this when I was first using my camera with flash bulbs in 1953.
> The flash would not fire at any other shutter speed setting. I first read
> about this in the pamphlet "The Stereo-Realist Guide", by Kenneth
> Tydings, 1952, Chapter 8 - Flash Equipment And Its Use, pages 40-43. He
> wrote "You must set your shutter at 1/25 second. This is the only shutter
> speed setting which permits flash synchronization with any flash source."
> 
> Is there some way to modify my camera so that it will synch at any
> shutter speed?
> 
> Rogers
> 
> On Sat, 26 Aug 2000 12:36:59 -0400 "Dr. George A. Themelis"
> <DrT-3d@xxxxxxx> writes:
> > At 12:31 PM 8/26/00 -0400, you wrote:
> > >My Realist f3.5, vintage 1952, has flash sync only at 1/25 second. Is
> this unusual?
> > 
> > Yes.  You should be getting synch all the way to 1/150s. How do you
> know that you only get 1/25s?
> > 
> > 
> > George
> 
> 
> 
>