Tech & Science: Canon patents a lens cap you can't possibly lose - - PressFrom - United Kingdom
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Tech & ScienceCanon patents a lens cap you can't possibly lose

11:00  23 july  2019
11:00  23 july  2019 Source:   techradar.com

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Canon ’s new patent application (JP 2019-113645), though, describes a lens cap with a barndoor style configuration that allows you to open it up, shoot through it, and then close it again without having to take it off the lens at all. As well as the obvious implication of having a lens cap that you don’ t need to

Canon has patented a method for improving its dual IS system during longer exposures. Just to drive the point as clearly as I possibly can: I don't think " Canon Sucks!" I think people who say so are narrow-minded and Canon files patent application for barndoor-style lens cap that you can ' t lose .

Canon patents a lens cap you can't possibly lose © Provided by Future Publishing Ltd.

Any photographer worth their salt knows that at some point, they’re going to be losing lens caps – either while out in the field or somewhere at the bottom of their bag. Most of us have spares, but for those who don’t Canon may have an answer to your problems.

The Japanese camera manufacturer has recently filed a patent (number 2019-113645) in its home country for a barn door-like lens cap that simultaneously works as a lens hood as well.

First spotted by Canon Watch, the “invention works as a lens hood function at the time of shooting and as a lens protection function at the time of non-shooting, thus eliminating the need for lens cap attachment / removal and barrier opening / closing operations”.

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In a patent from October, 2017, Canon details a lens adapter for mirrorless cameras that would feature an electronic variable ND filter built right in. That way, you could electronically and silently change the amount of light hitting your camera's sensor without stopping down the lens .

A patent showing a new type of lens cap / lens hood that stays affixed to the lens has appeared from Canon as been uncovered by Canon News. This design may have some usability concerns with dedicated lens hoods and filters, but could still be the right solution for some people.

The idea behind Canon’s design is that it will be permanently attached to the lens, so losing another lens cap might be a thing of the past.

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However, Canon only uses the term “digital camera” in the patent, so whether the new lens cap design will make its way to the new RF-mount lenses or the older EF, EF-M or EF-S lenses remains to be seen. Instead, the patent seems to be for lenses with extending barrels that are typical for point-and-shoot snappers.

Nothing new

There have been solutions for the lost lens cap problem in the past – Canon is by no means the first company to try and solve this issue.

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I lost a lens cap in the rather funny way. Taking photo of a mountain creek on a wooden bridge. Sure, any 77mm lens cap will work for the 24-105/4. I use Tamron lens caps on most of my Canon lenses . They seem to stay in place better, and the center-pinch design is much easier to use with a

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The Olympus LC-63A lens cap has been around for a very long time now, and was designed to fit on the XZ-1 and XZ-2 compact cameras. It’s attached to the lens barrel via a screw mount and automatically opens and shuts when using a button on the camera itself.

For those of us with multiple lenses for DSLRs or mirrorless cameras, Kuvrd (as in ‘covered’) launched a very successful Kickstarter campaign in 2017 for a silicone-based one-size-fits-all lens cap that claimed to be waterproof, dirt-proof, shock-absorbent, portable and malleable, but it wasn’t designed to be permanently attached to the lens itself.

While Canon’s design is still just a patent, it would be nice to see a major manufacturer provide a solution to a common problem that most photographers face.

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Canon patents a lens cap you can't possibly lose

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