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Old April 2nd 04, 03:40 PM
Bandicoot
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Default Focal plane vs. leaf shutters in MF SLRs

"Bob Salomon" wrote in message
...
In article ,
"Roland" wrote:

This is probably the most important reason why a leaf
shutter can not be used in this way and why it has to exist in the lens

near
where the diaphram is.


No the leaf shutter is placed where it is as small as necessary.


No. Roland is correct - logic should tell you that, rally, apart from
anything else. The only cameras that get away with leaf shutters in the
bodies (Pentax Auto110, for example) do so by having specially designed
lenses that effectively have a node where the shutter is.

I'm surprised, slightly, by this thread - I sort of thought everyone knew
this.


And the overriding benefit to the leaf shutter is optimal flash synch so
you can balance ambient and flash light to whatever ratio you want.


That is correct - though lightness is also a factor, and some see having a
shutter in each lens as a reliability issue: if one breaks at least you can
go on using the other lenses.


Peter