RE: [Leica] Was Medium format camera (now pit-bull arena)

["Austin Franklin" <darkroom@ix.netcom.com>]

Certainly.  It is part and parcel of a leaf shutter design.  The leaf
shutter blades have to travel from the center to the edge, therefore, the
center will be open for a longer period of time, and that time decreases
toward the edges.  With small apertures, the time it takes for the shutter
to travel the distance until it's 'fully open', which is when it's past the
aperture blades, is very small.  Contrast this with the distance it has to
travel until it's 'fully open' when the aperture is wide open.  The times
are different, though the shutter speed is the same.  This amount of shutter
blade travel time becomes significant when that amount of time approaches
the shutter speed time.

If you don't get any part of that, or if you'd like further explanation,
please let me know and I will do my best to explain it.

> Can you be specific please, as you are making a "general" statement.  Are
> you saying that the latest Zeiss and Schneider lenses are not accurate or
> are you talking about the older vintage leaf shutter lenses or Hassy 500
> mechanical shutter lenses?  How inaccurate are they?
>
> The Rollei 6008 has electronically controlled shutters, and I
> have not seen
> any problems with any of the lenses that I have (I use them in available
> light as well).  Have you experienced the problem yourself, if so did you
> send it for repairs?
>
> andy
>
> [mailto:owner-leica-users@mejac.palo-alto.ca.us]On Behalf Of Austin
> Franklin
> ...
> Not from the faster sync speeds, but leaf shutters in general.  At higher
> shutter speeds, and wide apertures, their speeds are not accurate.  With a
> strobe, that will not matter, but in available light use, that can be a
> significant issue.
>
>