I'm sorry, I don't hate any of my lenses that much...

Digital Image Studio wrote:
> On 24/04/07, Jack Davis <[EMAIL PROTECTED]> wrote:
>   
>> I can only hope. ;)
>>     
>
> Lifted directly from a post I made re lens cleaning Nov 2000:
>
> In an except from the Leica Fotographie International magazine 6/99 page 37
> the following can be found:
>
> "The resistance and adhesive power of the outer layer is so good that there
> is little likelihood of damage by environmental influences or persistent
> cleaning on the part of the user. Numerous abrasion tests have been carried
> out. There is one that uses a rubber eraser which contains up to 50%
> pumice-stone grains. The standard test is to rub backwards and forwards 20
> times with a pressure of 1kg. Afterwards, no scratches should be visible on
> the lens surface."
>
> Although this passage refers to Leica coatings and practices I would be quite
> disappointed if the late Pentax coatings didn't exhibit the same wear
> resistance. Anyone care to run the above test on a neglected piece of SMC
> hardware?
>
> Cheers,
>
>
>   


-- 
Entropy Seminar: The results of a five yeer studee ntu the sekend lw uf 
thurmodynamiks aand itz inevibl fxt hon shewb rt nslpn raq liot.


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