GUESS THE LENSES! (Sorry Ian, but you're disqualified.)


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Originally posted by Lennier


To add to that, there's the DO (Diffractive Optics) technology that Canon has started to use on their tele primes.

DO which is actually Fresnel lenses, those have been around for years and years and hardly represent a great leap forward, however it does raise a far more interesting question about why Canon can't reduce the weight of their lenses by any other method.
 

to build up muscle...and to dump your money...
 

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