SHORT: Polaroid 440 Photoelectric Shutter
Our Own Devices
•
January 28, 2025
Our Own Devices
@ourowndevices1About
Ever wonder how a rotary telephone works, how sailors and pilots navigated by the stars, or how mechanical calculators perform complex math using only gears? Then you've come to the right place! Our Own Devices is a channel dedicated to the fascinating world of vintage technology, and the many elegant and ingenious ways our ancestors solved even the most complex technical problems. Questions or comments? Have a fascinating device you'd like covered on the channel? Please contact me at [email protected] Want more fascinating history? I am a regular staff writer for Today I Found Out and many of its sister channels: https://www.youtube.com/@TodayIFoundOut
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Video Description
Introduced in the early 1960s, the Polaroid 440 Photoelectric Shutter was designed to provide older Polaroid-Land camera models with automatic shutter speed control. It uses a unique and ingenious electro-pneumatic mechanism to adjust the shutter speed according to the electrical output of a photocell. History of Polaroid Videos: Part I: https://youtu.be/AVZA-4saKt0 Part II: https://youtu.be/rCcJIVoqYbg Part III: https://youtu.be/f6LaqckayBo The Death of Polaroid: https://youtu.be/VBAmKdgmcWc Polavision: https://youtu.be/jb3XWVUM_qM Oscilloscope Camera: https://youtu.be/e22KAE9bVew Kodak Instant Cameras: https://youtu.be/bnlgTDiwDiI Cold War Moon Base Video on Highlight History: https://www.youtube.com/watch?v=2xWe4wa70mE&pp=ygVEdGhhdCB0aW1lIHRoZSB1LnMgdHJpZWQgdG8gYnVpbGQgYSBtYXNzaXZlIG1pbGl0YXJ5IGJhc2Ugb24gdGhlIG1vb24%3D
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