Lens Cap facts
While investigating facts about Lens Cap Keeper and Lens Capsule, I found out little known, but curios details like:
An 8 year old named Gabi Mann befriended her local crows by giving them part of her school lunch every day, and in return, they have started leaving her gifts ranging from random shiny objects like broken glass to a lens cap that her mother had lost earlier that day
how lens cap keeper?
The Venera 14 probe landed on Venus in 1982 to measure the compressibility of the soil. It ended up measuring the compressibility of its own lens cap, which landed right where the probe was to measure the soil.
What lens cap do i need?
In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across answering how to tell what size lens cap you need. Here are 6 of the best facts about Lens Cap Holder and Lens Cap Leash I managed to collect.
what lens cap size do i need?
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Nikola Tesla inadvertently captured the first X-Ray image while attempting to photograph Mark Twain with a vacuum tube. Twain was blasted with so much radiation that only the metal screw in the lens cap appeared in the picture.
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The USSR had a lot of trouble with lens caps on its space missions. The Venera 9, 10, 11, and 12 missions to Venus each experienced failures on one or both of its cameras because the lens cap would not come off after the spacecraft landed. On Venera 14 a lens cap blocked an experiment.
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After a series of failures to eject the lans cap on the camera of a Russian probe designed to land on Venus and take pictures and analyze the soil, the Venera 14 lander ejected the lans cap right under the soil probe meaning the probe measured the compressibility of the lens cap, not the soil.
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5 of the Russian Venera probes sent to the surface of Venus had failures related to lens caps.
