Canon patent for EF-M 55-300mm f/4.5-6.3 DO IS lens for EOS M system

JPA_427232674_000002

A long awaited super-zoom lens for the EOS M system with better optics might soon be reality. Canon filed a patent for a  EF-M 55-300mm f/4.5-6.3 DO IS lens, featuring diffractive optics and image stabilisation. Canon already has a telephoto lens for the EOS M, the Canon EF-M 55-200mm F4.5-6.3 IS STM

Such a lens would be a welcome addition to the small lens line-up currently available for the EOS M system. Canon filed other patents for telephoto lenses for the EOS-M system. However, this patent might refer to a a product that could hit the market. If it does, then the price is the what I would like to know first. Optics with DO elements are usually not cheap.

  • Patent Publication No. 2015-232674
    • Published 2015.12.24
    • Filing date 2014.6.11
  • Example 1
    • Zoom ratio 5.27
    • Focal length 55.04 135.00 290.01
    • F-number 4.60 5.18 6.30
    • Angle of view 13.94 5.78 2.70
    • Image height 13.66 13.66 13.66
    • Overall length of the lens 136.00 175.46 192.00
    • BF 35.50 35.50 35.50
[via Egami]

Canon patent for a dSLR that can take EF-M lenses (if I got it right)

canon patent

I am not sure I understood this patent correctly. Machine translated Japanese patent literature is never an easy task to get. Any help is thankfully accepted.

However, Canon filed a patent for an SLR that can switch the position of the sensor (108 in the second image). If you look at the first image, you can see that the sensor stays in a different position and that the mirror (104) is there were the sensor was.

What about the flange distance, which is different for EF-M and EF/EF-S lenses? The Japanese text mentions an adapter that has to be used when using EF-M lenses.

I am really not sure I got this right. It appears to be a camera body for some sort of transition from dSLR to mirrorless.

What do you think?

  • Patent Publication No. 2015-219460
    • Published 2015.12.7
    • Filing date 2014.5.20
  • Canon patents
    • Position and the focusing screen image pickup devicecapable of switching the position of the
    • At the time of photographing preparation, leading to images which have been imaged on the focusing screen optically viewfinder
    • At the time of shooting, the image pickup device image is imaged in

Canon patent for EF 24-300mm f/3.5-5.6 lens for full-frame DSLR

24-300mm f/3.5-5.6

Canon patent for a EF 24-300mm f/3.5-5.6 USM lens for full-frame sensors. The patent description doesn’t mention image stabilisation (IS), so it’s unlikely this will be the replacement for the Canon EF 28-300mm f/3.5-5.6L IS (announced 2001).

As usual, a filed patent doesn’t mean the described gear will necessarily hit the market. On the other hand, this may just be a patent on the way to the replacement for the 28-300mm f/3.5-5.6, and we could soon see another patent for a similar optical formula and with added IS.

  • Patent Publication No. 2015-215438
    • Published 2015.12.3
    • Filing date 2014.5.9
  • Example
    • Focal length 24.70 101.33 292.01
    • Fno 3.50 4.59 5.87
    • ω (degrees) 41.22 12.05 4.24
    • Image height 21.64 21.64 21.64
    • Overall length of the lens 202.71 232.50 288.71
    • BF 38.78 43.69 75.66

Untitled

[via Egami]

Canon Patent for CN-E 70-200mm f/2.8 Lens (super 35mm, Cinema EOS)

CN-E 70-200mm f/2.8

Canon filed a patent for a CN-E 70-200mm f/2.8 Cinema lens for super 35mm sensors, i.e. for Canon’s Cinema EOS products. If this patent hits the market it will be a T2.8 lens. However, a patent does not necessarily mean such a lens will hit the market any time soon. New Canon Cinema EOS products are expected for NAB 2016.

  • Patent Publication No. 2015-230449
    • Published 2015.12.21
    • Filing date 2014.6.6
  • Example 1
    • Zoom ratio 2.86
    • Focal length 70.00 118.30 200.00
    • F-number 2.80 2.80 2.80
    • Half angle (in degrees) 12.52 7.49 4.45
    • Image height 15.55 15.55 15.55
    • Overall length of the lens 277.01 277.01 277.01
    • BF 44.72 44.72 44.72
[via Egami]

Canon patent for EF 16-40mm f/4 lens (replacement for EF 17-40mm f/4?)

canon patent

Canon filed a patent for an EF 16-40mm f/4 lens, which appears to point to a replacement for the venerable Canon EF 17-40mm f/4L USM, one of the more affordable Canon “L” lenses. The EF 17-40mm f/4L was introduced in 2003, a replacement is likely given the new high resolution sensors Canon is starting to produce.

  • Patent Publication No. 2015-206976
    • Published 2015.11.19
    • Filing date 2014.4.23
  • Example
    • Zoom ratio 2.36
    • Focal length 16.48 24.40 38.90
    • F-number 4.12 4.12 4.12
    • Half angle (in degrees) 52.70 41.56 29.08
    • Image height 21.64
    • Overall length of the lens 177.74 162.40 159.73
    • BF 38.00 45.51 63.40
[via Egami]

Canon patent for EF-M 55mm f/3.5 macro lens

canon patent

A Canon patent for an EF-M 55mm f/3.5 macro lens for the EOS M system.

Canon is working on the future of the EOS M system, and there is a lot to come in 2016. This patent is just a hint about Canon’s mirrorless plans. This is a patent for an APS-C sensor, so the rumored Canon full-frame mirrorless camera is not involved here. However, we spotted a Canon patent for a similar optical formula some time ago (50mm f/3.5 IS). According to my sources, Canon’s full-frame mirrorless camera has been delayed because of mount-related issues. Another rumor we got, states that early prototypes of such a camera are already undergoing lab tests. Hard to say when we really can expect this camera, but I am sure it is coming.

Canon is now taking their EOS M system seriously. The EOS M3 was the right step in the right direction, and is a great camera. Some clickbait sites are saying that the EOS M3 is one of Canon’s worse releases of 2015. That’s utterly dumb and likely the oddest statement about Canon in 2015, and has the sole purpose to get traffic by smashing Canon. I have to say that I am surprised to see how many people feels the urge to smash the Canon EOS M3, as they did before with the EOS M. Guess this is just childish, and profitable. I own both cameras, along  with APS-C and FF bodies. Well, I am now on travel for the next 2 months and guess what camera I have with me? Right, the EOS M3. A great mirrorless camera with an image quality that outperforms most of the competitors.

  • Patent Publication No. 2015-215391
    • Published 2015.12.3
    • Filing date 2014.5.8
  • Example 1
    • Focal length 53.73
    • F-number 3.50
    • Half angle (in degrees) 14.26
    • Image height 13.66
    • Overall length of the lens 76.39
    • BF 17.69
[via Egami]