Cross Section Of A Leica Lens
Feb 14, 2018 11:22:52 #
Now you know why photo lenses are expensive.
No I do not know which lens this is.
No I do not know which lens this is.
Feb 14, 2018 11:38:02 #
Pixelmaster wrote:
Now you know why photo lenses are expensive.
No I do not know which lens this is.
No I do not know which lens this is.
Super cheap lenses look just like that on the inside!
Feb 14, 2018 12:36:24 #
Feb 14, 2018 12:53:42 #
Pixelmaster wrote:
Now you know why photo lenses are expensive.
No I do not know which lens this is.
No I do not know which lens this is.
It’s a cross section of the 2nd version of a Leica Tri-Elmar-M 28-35-50. Here’s a little blurb from PetaPixel.
Feb 14, 2018 13:21:04 #
Pixelmaster wrote:
But not the quality of glass or its coatings.
Yes, those coatings are stunning!!! I see it now!!
SS
Feb 14, 2018 16:15:39 #
Pixelmaster wrote:
But not the quality of glass or its coatings.
Polycarbonate is an extremely good optical material. It is the preferred material to make eye glasses out of. The biggest advantage that glass has over polycarbonate is it is scratch resistant and will take water and dust repellent coatings better.
Feb 15, 2018 13:26:53 #
Joe Blow wrote:
Polycarbonate is an extremely good optical material. It is the preferred material to make eye glasses out of. The biggest advantage that glass has over polycarbonate is it is scratch resistant and will take water and dust repellent coatings better.
But polycarbonate will burn if that matters.
Feb 15, 2018 15:41:58 #
Jack 13088 wrote:
But polycarbonate will burn if that matters.
It will be OK if you don't focus too fast.
Sorry I could not resist.
Dennis
If you want to reply, then register here. Registration is free and your account is created instantly, so you can post right away.