The simple lens

Hello Friends,
A very interesting video from the 1976 that explains quite nicely how a lens work. My contribution was to upgrade the video to HD using one of those AI softwares.
I do not own the copyright to this video.
keywords: How a lens works, principle of a lens, lens basic operation, how a lens works in photography, photography, film photography, how a camera lens works, vintage photography
Some useful stuff (I’ll get a small commission if you order thru any of the links):
jar opener : amzn.to/4gAUiAg
Air blower : amzn.to/3T83fHb
infrared filter : amzn.to/3zmD2K3
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Optical cleaning cloth : amzn.to/3Pt36uW
Optical cleaning paper: amzn.to/3VT67a4
Optical cleaning fluid:
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Rubber tools:
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Lens spanner:
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Screwdriver set (includes J-tips): amzn.to/3LTPi9G
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JIS screwdrivers: amzn.to/3hmGG1A
(This set has J000, J00, J0, J1)
JIS screwdrivers: amzn.to/3HElRrU
lens sucker: amzn.to/49Lmehd
(I’ll get a small commission if you order thru any of the links):
DONATION: paypal.me/DiyE...
If you find this video useful, informative and adds value to you (and possibly saved, or made some money by repairing the camera or lens), then consider donating to the channel