Community & Help Center
Forums
-
- 109.8k
- posts
-
- 4.5k
- posts
-
- New from France
- By JDMvW,
-
- 644
- posts
-
- 2.3k
- posts
(800x800).thumb.jpg.c94833d6ea93605f47351873a94fc0cc.jpg)
-
Who's Online 16 Members, 0 Anonymous, 552 Guests (See full list)
-
Recent Gallery Images
-
Recent Forum Wide Posts
-
-
By q.g._de_bakker · Posted
Barnack did not invent double-cine 35 mm format. There were others before him and contemporaries that did the same. It did not take a giant leap of imagination to come up with the idea. Barnack/Leitz made it a popular format, and had (and still have) a good marketing in which they habitualy claim they were the first. One of quite a few in a "who-did-it-first-but-did-not"-list. -
By q.g._de_bakker · Posted
Glass-glass transitions are almost as bad as glass-air transitions as far as reflecting light and causing flare is concerned. What causes reflections is the transition to a medium with a different refractive index. And having a glass-glass transition of course only makes sense when the two adjoining glasses have a different refractive index. The difference in refractive index also affects the optical pathway, and with that how the lens works. So glass-glass transitions are different from glass-air transitions, and are used as a tool in lens design. The cement between the glass surfaces is to fill any unintended but unavoidable gap between the glass elements with something that has a refractive index close to that of the glass. And it is also a bonus that the two glued elements are then fixed in position by the balm, of course. -
By Andy Collins · Posted
Also, your EL-5 flash will work just fine. It's what I'm using on the bodies I listed. -
-
