Re: [Leica] impurities in lens

[Chris Lee <chrislee@mac.com>]

Thanks. I checked my other lenses, and I have found the same stuff in most
of them. However, it looks like there are fewer of these things in my medium
format lenses. 

How can a bubble in a lens improve image quality?

Regards,   

Chris Lee

> Chris Lee wrote:
>> 
>> I went to a local Leica dealer today where I was looking at many of their
>> lenses. I noticed almost all of the lenses, which were supposed to be brand
>> new, showed some very tiny "impurities" in the glass. These looked like very
>> fine particles suspended inside the glass elements. Although they were only
>> visible at certain angles in very strong lighting, I couldn't help but
>> wonder what they were. Can someone tell me if these lenses are defective? Or
>> these things are supposed to exist in every lens, good or bad?<<<<<<<<
> 
> Hi Chris,
> Don't be a nervous nellie about little "impurities," simply because if
> you hold any lens at the right angle to the light you'll find what you
> think are "impurities."  They're not and at one time the "real old time
> photographers" looked for "bubbles" in the glass of a lens, as that was
> a mark of a better lens.
> 
> ted