Canon Patent For 55-300mm f/4-5.6 IS STM Lens With Inner Focusing

Canon Patent For 55-300mm f/4-5.6

Egami (translated) spotted a patent filed by Canon for a 55-300mm lens with image stabilisation and inner focusing (lens does not extend when focusing). The patent ale refers to a EF-S 55-250mm F4-5.6 IS STM lens

  • Patent Publication No. 2014-145960
    • Published Date 2014.8.14
    • Filing date 2013.1.30
  • Example 3
    • Zoom ratio 5.20
    • Focal length f = 56.80-135.16-241.32mm
    • Fno. 4.16-5.18-5.88
    • Half angle ω = 13.52-5.77-3.24 °
    • Image height Y = 13.66mm
    • The overall length of the lens 153.89-191.28-208.89mm
    • BF 38.57-57.95-65.38mm
  • Example 5
    • Zoom ratio 5.20
    • Focal length f = 56.37-133.75-293.01mm
    • Fno. 4.16-5.18-5.88
    • Half angle ω = 13.62-5.83-2.67 °
    • Image height Y = 13.66mm
    • The overall length of the lens 155.00-190.52-210.00mm
    • BF 38.40-54.49-65.40mm
  • Canon patents
    • Inner focus
    • Vibration control

Interview With Yoshiaki Sugiyama, The Man Behind The EOS-1 DSLRs


Canon Professional Network Europe published a long interview with Mr. Yoshiaki Sugiyama, the engineer that worked on the design oc Canon’s SLR systems since 1978, up to the EOS-1 series (introduced in 1989).

From the interview:

CPN: What do you see as the future for EOS camera design encompassing? For example, can cameras get smaller and even easier to use? If so, how might this be achieved?

YS: “I previously said that I believe the optimum size among Canon cameras is the AL-1. I believe that the trend towards compact, lightweight equipment is a certainty among categories encompassed by advanced amateurs, and even professional equipment, [so] the entire [EOS] system will move toward a more lightweight form.

The technical challenges are: lighter, stronger materials; glass materials with a high refractive index and high permeability; improvement in low power consumption design and compact, high-capacity battery; electronic parts with a higher degree of integration.”

Read the interview at CPN –>


Canon PIXMA MG6620 Commercial

CanonUSA posted a video about the Canon PIXMA MG6620 printer, announced yesterday.

The Canon PIXMA MG6620 Wireless Inkjet Photo AIO printer features a Passive NFC version of PIXMA Touch & Print technology, with similar functionality as Active NFC except that both the mobile device and printer will have to be connected to the same Wi-Fi network in order to print. The printer also features a three-inch LCD touchscreen and produces stunning, high-quality images along with sharp documents for the home or home office thanks to a five-color hybrid ink system. Available in black, white and burnt orange with a matte finish, the PIXMA MG6620 printer will have an estimated retail price of $149.998.

Samyang Will Soon Announce The Lens “Of Your Dreams” (50mm f/1.2) – Update

Update: There was a typo: the lens is f/1.2 not f/2

Update #2 (thanks jevgeni): There is more than one lens coming, the English teaser says “Dreams Come True! On August 26th, your dream lenses are coming“. See the image at the end of the post.

Samyang (aka Rokinon, and other brand names) is set to announce a new Cine lens. Rumors suggest it will be a 50mm f/1.2 lens, and Samyang puts it in their VDSLR line-up.

Samyang touts the lens as “the dream will soon be true. At Aug. 26, the lens you are dreaming will come out”

So, there is something interesting coming on August 26th. Samyang made some amazing lenses in the last years, I am sure this one will also be awesome.

The news came via Dicahub (translated), more information and comments at slrclub.