Re: Lens Mount Progress

[Bruce Rubenstein]

You can't test one camera to determine the designed MTBF of the shutter. 
For a manufacturer, a shutter designed for 100,000 cycles means that 
very few would fail before 100,000 cycles. It would all depend on how 
similar one shutter would be in terms of manufacturing/process tolerance 
and what percentage of failures before 100,000 cycles was deemed 
acceptable. Figure that mode of the failure distribution curve was 
closer to 125,000 cycles.

BR

[EMAIL PROTECTED] wrote:

How difficult
would it be to test the mean time of a shutter, it either survives 100 000
cycles or it dosn't.