Canon Tilt-Shift Rumors: Replacements and New Tilt-Shift Mechanism

Canon Tilt-Shift Rumors
Canon TS-E 45mm f/2.8
Canon Tilt-Shift Rumors
Canon TS-E 90mm f/2.8

A rumor about new “L” grade Canon tilt-shift lenses surfaced. It has word that there will be an “L” lens to replace the [shoplink 14608]TS-E 45mm f/2.8[/shoplink]. There is more: the [shoplink 131]TS-E 90mm f/2.8[/shoplink] will be replaced with a TS-E 135mm f/2.8L. Moreover, it appears that Canon is designing a new tilt-shift mechanism for this kind of lenses. It does not appear that the [shoplink 244]TS-E 17mm f/4L[/shoplink] and [shoplink 14604]TS-E 24mm f/3.5L II[/shoplink] will be replaced.

[via CR]

Canon Rumor: New Tilt-Shift Lenses Before End Of 2013?

[shoplink 14603]Canon Rumor[/shoplink][shoplink 14604]Canon Rumor[/shoplink]

Latest Canon Tilt-Shift lenses rumor. Canon may release the replacements for the [shoplink 14603]Canon TS-E 90mm f 2.8[/shoplink] and [shoplink 14608]Canon TS-E 45mm f/2.8[/shoplink] not earlier than 2014, but there might be an announcement in Autumn 2013. The same rumour source also suggests there could be more EF lenses announced in 2013, and that Canon is very occupied with designing more Cine lenses.

[via NL]

Canon Patent: More Pancake By Canon (45mm, 40mm, 35mm, 28mm, all f/2.8)

Canon Patent
45mm f/2.8
Canon Patent
35mm f/2.8
Canon Patent
40mm f/2.8
Canon Patent
28mm f/2.8

Japanese site Egami (translated) spotted new patents filed by Canon. All are for f/2.8 pancake lenses: 45mm, 40mm, 35mm, 28mm. Canon has two pancake lenses in their line-up: the [shoplink 5686]EF 40mm f/2.8 STM[/shoplink] and the [shoplink 6093]EF-M 22mm f/2 STM[/shoplink]

  • Patent Publication No. 2013-137411
    • Publication date 2013.7.11
    • Filing date 2011.12.28
  • Example
    embodiment
    Focal length Fno. Half angle Configuration length Total length BF
    One 45.00 2.80 25.68 20.00 57.99 37.99
    Two 39.00 2.80 29.02 23.50 62.50 39.00
    Three 35.00 2.80 31.72 25.00 63.01 38.01
    Four 28.00 2.80 37.69 27.00 65.00 38.00

    Image height = 21.64mm

  • Canon patent
    • The longer the focus back a Gaussian type, field curvature occurs
    • 2-group configuration positive positive, Gauss type

Perfomance:

Canon Patent
45mm
Canon Patent
35mm
40mm
28mm