Canon Patent: Extension Grip With Easy To Change Batteries

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A potentially rather useful Canon patent was spotted: an extension grip that allows for uncomplicated change of the batteries.

Canon patent 2022125113 (Japan) discusses methods and technology for an extension grip where batteries can be changed easily. According to the patent drawings, it seems for a compact mirrorless camera, more or less in EOS RP style.

From the patent literature:

A camera accessory is provided in which a battery can be easily inserted into and removed from the camera while being attached to the bottom surface of the camera.

Description of the Related Art

Along with the miniaturization of cameras, an auxiliary grip attached to a camera has been provided as an imaging accessory for improving the holdability of the camera for users with large hands. Patent Document 1 discloses an auxiliary grip detachably attached to a grip portion of a camera. In addition, an auxiliary grip ( hereinafter referred to as an extended grip) is also provided.

However, if the extended grip is attached to the camera when attempting to insert or remove the battery from the bottom side of the camera, first the extended grip is removed from the camera, and then the cover member on the bottom of the camera is removed. It has to be opened, which is annoying for the user.

The present invention provides a camera accessory that allows the battery to be easily inserted and removed from the camera while attached to the bottom surface of the camera.

More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production are these:

[via asobinet]

Canon Patent: Foldable Screen For A Compact Mirrorless Camera

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Well, that’s an interesting Canon patent: a foldable screen on the back of your future mirrorless camera.

Canon patent application 20220269152 and 20220272266 (both USA) discuss technology and methods to bring a foldable screen on the back of a mirrorless camera. The abstracts:

Pretty cool, I think. we have foldable screens on smartphones, and we will have them on other devices too, cameras included. The camera in the patent drawings looks like a very compact mirrorless camera.

More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production are these:

[via Northlight Images]

CANON EOS R10 Review (likeable little camera, handles nicely)

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Here is a Canon EOS R10 review, Canon’s most entry-level, APS-C mirrorless camera with RF mount.

At a glance:

  • 24.2MP APS-C CMOS Sensor
  • Dual Pixel CMOS AF II
  • 4K30 Video, 4K60 with Crop; HDR-PQ
  • 23 fps E. Shutter, 15 fps Mech. Shutter
  • 2.36m-Dot OLED EVF
  • 1.04m-Dot Vari-Angle Touchscreen LCD
  • Multi-Function Shoe, Wi-Fi and Bluetooth

Amateur Photographer posted their full Canon EOS R10 review. From their conclusion:

After a decade of tinkering half-heartedly with the EOS M system, it seems Canon has now decided to take APS-C mirrorless more seriously. With the EOS R10, it’s produced a likeable little camera that ticks most of the boxes we’d expect for a £900 body. It handles nicely , in a fashion that existing Canon users will find very familiar, while delivering attractive images . Its autofocus system and continuous shooting speed are both in a different league to anything that Canon – or indeed anyone else – has previously offered in this price range.

Compared to the competition, the camera’s main flaws are its small viewfinder and lack of in-body stabilization . But the biggest problem is the lack of native APS-C format RF-S lenses , or indeed any roadmap for upcoming releases. in having a camera that allows you to change the lens, if you can’t buy a sensible set of lenses to use with it. Unfortunately, Canon doesn’t even offer an APS-C telephoto zoom to complement the kit zoom, let alone a wideangle zoom, or some compact bright primes. You can use full-frame RF lenses, but only a few look really well matched to the EOS R10 in terms of size and price; perhaps the Canon RF 50mm F1.8 STM, RF 85mm F2 Macro IS STM, and the Canon RF 100-400mm F5.6-8 IS USM.

Read the review at Amateur Photographer…

Canon EOS R10: [shoplist 69417]

More Canon EOS R10 coverage is listed here.

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Today Only: Sirui 24mm f/2.8 Anamorphic 1.33x Lens (EF-M Mount) – $599 (reg. $999)

Sirui 24mm f/2.8
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Only for today (8/22/2022) B&H Photo has a whooping 40% discount on the Sirui 24mm f/2.8 Anamorphic 1.33x Lens (EF-M Mount).

At a glance:

  • Covers Micro Four Thirds/APS-C Sensors
  • Suitable for 4K Image Capture
  • 2.4:1 De-Squeezed Format; 8-Blade Iris
  • Schott Optical Glass with Nano Coatings
  • Blue Streak Effects; Less Stray Light
  • Just under 2′ Minimum Focus
  • Focus Scales in Feet & Meters
  • 72mm Filter Thread

Get the Sirui 24mm f/2.8 Anamorphic 1.33x Lens (EF-M Mount) on sale at $599. Compare at $999.

More selected deals:

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Canon Patent: 20mm f/1.8, 28mm f/1.8 And 24mm f/1.8 With Backlight Control

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A new Canon patent for RF mount lenses: 20mm f/1.8, 28mm f/1.8 and 24mm f/1.8.

Canon patent application 2022122047 (Japan) discusses optical formulas for three RF mount lenses with backlight control. From the patent literature:

An object of the present invention is to provide an optical system that is less affected by unnecessary light and has high optical performance.

Description of the Related Art

There is a demand for further improvement in performance and miniaturization of photographing optical systems. [0005]When trying to improve the performance of an optical system, the number of lenses constituting the optical system increases. On the other hand, if an attempt is made to reduce the size of the optical system by shortening its overall length, the distance between the lenses constituting the optical system and the distance between the optical system and the imaging surface will be shortened. As a result, unnecessary light (ghost) caused by reflection of light on each lens surface easily reaches the imaging surface.

SUMMARY OF THE INVENTION

Accordingly, it is an object of the present invention to provide an optical system that is less affected by unnecessary light and has high optical performance.

Example 1

  • Focal length: 28.60
  • F-value: 1.85
  • Half angle of view: 37,1
  • Image height: 20.15
  • Total length: 81.00
  • Back focus: 13.20

Example 2

  • Focal length: 20.60
  • F-value: 1.85
  • Half angle of view: 46.4
  • Image height: 18.71
  • Overall length: 84.87
  • Back focus: 11.00

Example 3

  • Focal length: 24,72
  • F-value: 1.85
  • Half angle of view: 41.2
  • Image height: 19.34
  • Total length: 81.00
  • Back focus: 11.00

More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production are these:

[via asobinet]

Canon Patent: Internal Liquid Cooling Device For Mirrorless Cameras

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Remember the Canon EOS R5 overheating soap opera? Maybe this Canon patent application comes from this hysteria.

Canon patent application 20220264767 (USA) discusses technology and methods for an active cooling system with magnetic fluid. The patent abstract:

This is pretty cool, me thinks: magnetic cooling fluid pumped by use of a magnetic field. The magnetic fluid is pumped through the camera body using magnets. Will we see it soon on a new Canon mirrorless camera?

More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production are these:

[via NL]