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By admin, on May 1st, 2015
 Canon new EF 35MM F/1.4L II Lens patent spotted over the web, take a look at the details below….
- Patent Publication No. 2015-72370
- Published 2015.4.16
- Filing date 2013.10.3
- Example 1
- Focal length f = 35.47mm
- Fno. 1.45
- Half angle of view ω = 31.38 °
- Image height Y = 21.64mm
- Lens length 141.37mm
- BF 39.37mm
- Positive, positive ShiboTadashi
See more Canon Lens Patent
By admin, on March 9th, 2015
 Another Canon 100X optical zoom lens patent for compact camera surfaced over the web, Also see one more Canon 100X zoom lens patent published on 2013,
Explanation self interpretation of patent literature
- Patent Publication No. 2014-174524
- Published 2014.9.22
- Filing date 2013.3.13
- Example 4
- Zoom ratio 98.52
- The focal length f = 3.07 53.41 302.40mm
- Fno. 1.85 8.14 9.00
- Half angle ω = 36.2 2.40 0.50 °
- Overall length of the lens 110.05mm
- BF 12.67 27.40 5.19mm
- 4-group zoom of positive and negative, positive
- Inner zoom (the second group, the third group)
- Rear focus (fourth group)
- Anti-vibration (third group)
After the announcement of Nikon P900 along with 83X optical zoom, we do hope that Canon will take the competition to a next level, See more Canon Patents
src-egami
By admin, on February 24th, 2015
Canon Patent New High Speed AF EF-EF-M Adapter for EOS M mirrorless camera, as we all know that the Hybrid AF Sensor (phase+contrast based AF system) of the EOS M series camera work very well with the EOS-M native lenses aka EF-M mount lenses, but when EF or EF-S Lenses are mounted on EOS M series mirrorless via currently available adapter, we see slow and sluggish AF speed… to overcome this Canon patented High Speed AF EF-EF-M Adapter that will improve the AF speed while using the EF and EF-S Lenses.
Explanation self interpretation of patent literature
- Patent Publication No. 2015-34903
- Published 2015.2.19
- Filing date 2013.8.9
- Master lens
- Zoom ratio 2.69
- Focal length 72.13 135.02 193.99mm
- Fno. 2.90
- Half angle ω = 10.72 5.78 4.03 °
- Image height Y = 13.66mm
- Overall length of the lens 237.36mm
- BF 54.00mm
- Adapter installed
- Zoom ratio 2.69
- The focal length f = 72.12 135.00 193.96mm
- Fno. 2.90
- Half angle ω = 10.72 5.78 4.03 °
- Image height Y = 13.66mm
- Overall length of the lens 239.70mm
- BF 16.77mm
- Canon patent
- Fast AF adapter
- Wobbling corresponding
- 3-group configuration of positive and negative positive
- 2 group also serves as a focus group and the anti-vibration group
- And realize high-speed AF focus group was lighter
See more Canon Patents
via – egami.blog.so-net.ne.jp
By admin, on February 18th, 2015
Canon is preparing to announce second generation of 300 mm F4 IS Lens according to the patent surfaced over the web, as you know that Canon already have Canon 300 mm F4 IS Lens (see at Amazon), so the upcoming lens will sure have better core specification and higher price tag compared to the previous generation of lens.
See more Canon Patents
By admin, on February 16th, 2015
It really is like something out of sci-fi, Canon is working on a external image stabilization unit that will enable Image stabilization in your DSLR, the unit will be placed in between your Camera lens and DSLR, just like as you are using the Canon teleconverters for DSLRs (see Canon EF 1.4X III Telephoto Extender). The best part is your focal length and F value remains same even after adding the external IS mechanism in your DSLR.
 Japanes text translated by google
Canon is anti-vibration converter patent is being filed. It is possible to mount the only anti-vibration mechanism without changing the focal length and F value.
Explanation self interpretation of patent literature
- Patent Publication No. 2015-28555
- Published 2015.2.12
- Filing date 2013.7.30
- Example 1a (master lens only)
- Focal length 392.50
- F-number 2.92
- Half angle of 3.16
- Image height 21.64
- Overall length of the lens 379.64
- BF 41.57
- Effective diameter of the front lens 135.72mm
- Lens configuration 8 groups nine
- Example 1b (anti-vibration converter mounted state)
- Focal length 392.50
- F-number 2.92
- Half angle of 3.16
- Image height 21.64
- Overall length of the lens 379.64
- BF 41.56
- Effective diameter of the front lens 135.72mm
- Lens construction 12 groups 15 sheets
- Canon patent
- 3-group configuration of positive and negative positive
- Inner focus (the second group)
- The anti-vibration converter can be inserted on the object side of the third group
If you have better translation, please do share with us.
See more Canon Patent – STAY WITH ON FACEBOOK | TWITTER | GOOGLE+ to get live news + rumors 24X7.
src – Egami
By admin, on January 3rd, 2015
 A new patent surfaced over the web that shows a new metal & plastic resin mount patent for DSLRs, the plastic lens mount will sure not so durable as Canon metal mount but it will be more cost effective and Canon will use it Canon rebel line aka entry level DSLRs camera.
Take a look at the translated text below….
Patent Publication No. 2014-240858 (Google Translated)
- Published 2014.12.25
- Filing date 2013.6.11
Canon patent
- Of bayonet mechanism mount
- Mounting an inner peripheral portion of the body has a concave rail surfaces of metal
- Mount the outer periphery of having a rail surface of the convex shape in the resin
- That resin rail than the metal rail, I have a narrow width and high height
srcc-egami
By admin, on December 22nd, 2014
The new technology will going to help your DSLR to automatically calculate the total time that the starts are actually taking to move from one point to another, hence the if you want long exposure shot without star trails in your image, your camera will going to automatically set the prefect exposure time by applying the new patent technology. Canon may implement this technology in upcoming Astrophotography based DSLR (possibly Canon 70Da ?)
Explanation self interpretation of patent literature
Patent Publication No. 2014-179863
Published 2014.9.25
Filing date 2013.3.15
Canon patent
Low sensitivity, I will test taken at the proper exposure
Place the time, to test shooting with the same settings
From the difference of the two test images to detect a movement of the star, and also to calculate the proper exposure time from the mobile width
The production shot with appropriate exposure to the subject of non-star
The production shot with appropriate exposure to star
To obtain the final output image by synthesizing two images production
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