[Leica] Leica Prices may not be artificially high

[douglas.sharp at gmx.de (Douglas Sharp)]

True, state of the art plastics and ceramics can beat 
most metals into a cocked hat when it comes to 
desirable properties.

Things like low expansion coefficients and light weight 
are pretty decisive in a lot of industries.

Cheers
The other Douglas

On 14.06.2011 13:33, Doug Herr wrote:
> Mark Rabiner wrote:
>
>> And also also also  that not super high end glass they use is held 
>> together
>> not by brass or aluminum but by plastic. Real nice plastic though. But
>> plastic by any other name. its lighter! Just don't bump the lens against a
>> door jam going through the doorway.
> Plastics by whatever name can be remarkably tough and can bounce back 
> where a metal would have permanently deformed.  Thermal expansion 
> properties can also be managed such that the bits holding glass elements 
> in place will expand and contract at the same rate as the glass.  Plastic 
> isn't always cheap junk.
>
> Doug Herr
> Birdman of Sacramento
> http://www.wildlightphoto.com
>
>
>
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