Kino
Subscriber
Mostly focuses on the Argus C-4, with some references to the C-3, though it's cool to see how they did lens grinding and coating. Plenty of marketing fluff too.
I'm addicted to videos like these, but it's quite hard to find many. I just really love how they show the difficult of the process and how they achieve it. I know any company would want to make themselves look good, but they're convincing of all of it.
The film also went over the blocks used to hold the lenses during grinding, how they differ, how many they need, how they're made in more detail than I've seen from other films about lenscrafting. Thank you for sharing!!
For a point of comparison, here is a film by Kodak Hawkeye about their lensmaking process:
I'm not sure how old each were at the time of making these films, but it does call into question the claims about being the only ones with such grinding machines! Regardless, I can't argue with the amount of "infrastructure" required for a company to produce lenses or entire cameras in-house, the metrology needed to verify it all, machine all the parts, etc.
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