The idle musings of a former military man, former computer geek, medically retired pastor and now full-time writer. Contents guaranteed to offend the politically correct and anal-retentive from time to time. My approach to life is that it should be taken with a large helping of laughter, and sufficient firepower to keep it tamed!
Miss K. recently put up a series of pictures of objects that have been cut away to show their interiors. Some are a real struggle to identify. This one in particular caught my eye – a Leica camera lens with its insides exposed.
There are many more images at the link. Interesting viewing.
Peter
Thanks for the link back Peter 😉
Oh, that lens is nifty. Now I'm sitting here looking at my camera. I didn't know how much was going on in the lens.
Take notice that there are 7 lens elements in that assembly. (Two are glued together to make an "achromatic doublet", which corrects for light shift.) That is 14 surfaces. Without anti-reflective coatings, it would have very poor light transmission to the film or sensor. On average, the loss could be 2-4%/surface. The material of the lens itself has losses, and it really adds up with multi-lens designs.