Canon Announces Two New EF Cinema Prime Lenses (135mm T2.2 and 14mm T3.1)

Canon just announced two new Cinema Prime Lenses: 135mm T2.2 and 14mm T3.1)?

 

LAKE SUCCESS, N.Y., August 29, 2012 – Further contributing to the evolution of the motion picture industry, Canon U.S.A., Inc., a leader in digital imaging solutions, today announced the development of two new cinema prime lenses, the 14mm T3.1 cinema prime lens and 135mm T2.2 cinema prime lens, adding to the Cinema EOS lineup consisted of 11 EF Cinema Lenses.

Both the 14mm T3.1 and 135mm T2.2 cinema prime lenses will be engineered for exceptional optical performance for Canon's latest large-format single-sensor 4K and 2K digital cinematography cameras. As part of the Cinema EOS System, the lenses will be compatible with standard sensor sizes including Super 35mm, the standard format in the motion picture industry, as well as HD-compatible EOS Digital SLR cameras using 35mm full frame, APS-H and APS-C image sensors.

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[Rumor] New EF 135mm f/1.8L IS And A Leaked Image? Yes, But Image Is A Fake!

While a new EF 135mm lens is for sure in Canon’s plans, the picture above (first seen in Chinese Xitek forum) is most probably a fake. There have been rumors about a 135mm f/1.8 or f/2 in the past. However, I wrote about a patent for a 135mm f/2.8 lens back in July (the big news was the apodization filter discussed in the patent). Hard to say if it has anything to do with the rumored next EF 135mm. However, the actual EF 135mm f/2.0L USM has f/2.0, the new one (if the patent has something to do with) would have f/2.8. Not unrealistic if you consider that the new one could/will also have IS.

EF 135mm f/2.0L USM price and availability check (around $821, click on the shop name): B&H Photo, Amazon USA, Amazon Canada, Canon Canada, Canon USA

Below you can see the existing EF 135mm f/2.0L USM lens.

[via CR]

[Patent] Canon 135mm f/2.8 and a 180mm f/3.5 Using An Apodization Filter

135mm f/2.8
180mm f/3.5

Japanese site Egami (machine translated) spotted another patent filed by Canon. This time it is about a 135mm f/2.8 and a 180mm f/3.5 lens. The news are an apodization filter that should help provide a more pleasant bokeh.

  • Patent Publication No. 2012-128151
    • 2012.7.5 Release Date
    • 2010.12.15 filing date
  • Example 1
    • 137.2mm – f = 135.0 focal length
    • Fno 2.83 -. 3.90
    • 9.1 deg half each painting.
    • Image height 21.60mm
    • 186.7mm – 150.0 full-length lens
    • BF 47.4 – 80.7mm
    • Lens Construction 10 elements in 7 groups sheet
    • 1 UD glass sheet
    • 0.25 times the maximum magnification ratio
  • Example 6
    • 179.1mm – f = 180.0 focal length
    • Fno 3.50 -. 4.00
    • 6.9 deg half each painting.
    • Image height 21.60mm
    • 218.0mm – 199.8 full-length lens
    • BF 70.0 – 89.8mm
    • Lens Construction 11 elements in 7 groups sheet
    • 1 UD glass sheet
    • 0.11 times the maximum magnification ratio
  • (Bokeh) out of focus look of the important
  • Apodization filter
    • The periphery of the filter transmittance is reduced
    • Added to the luminous flux intensity distribution
    • Bokeh is beautiful and the outline of the
  • Apodization element variable
    • If the liquid of same refractive index as the shape of the interface, no variation occurs in aberration
    • To be the same refractive power of the two liquids, the Abbe number is difficult
  • Canon‘s patented
    • Variable element shape
      • Voltage is applied, changing the shape of the interface
      • Obtain the effect of apodization
      • Varying refractive power, the Abbe number
    • To reduce the time variable aberrations of shape
      • By a twist of the material performed, to optimize the absorption coefficient, to suppress the generation of aberration to moderate the curvature of the interface
      • To reverse the two materials (such as liquid), the amount of chromatic aberration, do the negation
      • Suppress the two materials (such as liquid), refractive index, the difference between the Abbe number
    • The entire feeding (with floating)