mike wilson wrote:
> Pancho Hasselbach wrote:
>> Hi,
>>
>> there are leaf schutters for LF that are mounted behind the lens, they 
>> are big, and lightning fast:
>> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180047904417
>>
>> Pancho
> 
> 8sec to 1/60th?  Your lightning must be steam powered........

Ooops, now I know why there's a pair of quotation marks lying around 
here... Proof that you looked at it!

There seem to be sone physical limitations to the speed of large leaf 
shutters, as they must open and close all the way, whereas curtain 
shutters can do the trick with the scond curtain following the first 
very closely.

I've got a Mamiya RB67, which has leaf shutters built into the lenses. 
Shutter times are as usual from 1s to 1/2, 1/4 and son on, but fastest 
time (after 1/250) is 1/400. Strange, but it seems as they could not 
make it reliable at 1/500. OTOH, flash is synchronized at all speeds. 
And the shutter works really smooth.

Pancho

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