Archive for: ef 35 f/1.4L II

EF 35mm f/1.4L II to Finally Come as Well? [CR2]

EF 35mm f/1.4L II to Finally Come as Well? [CR2]

We’re told that that Canon will replace their 35mm f/1.4L following the announcement and shipping of the upcoming EF 11-24mm f/4L, which has been rumoured since August. We’re told that an announcement date hasn’t been set, however the lens could appear as early as Q1 of 2015, or fall into the second quarter of next year.

This lens has been rumoured for replacement since the EF 24mm f/1.4L II was announced back in 2008. There have been a lot of patents for such a lens, but nothing has come to fruition.

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Patent: Canon EF 35mm f/1.4L II

Patent: Canon EF 35mm f/1.4L II

A new patent for an EF 35mm f/1.4L II has appeared. We haven’t seen a new patent for this optical formula in quite some time.  I recently received a claim that we’ll see such a lens in Q1 of 2015, but I haven’t been able to confirm that information.

Patent Publication No. 2014-202952

  • Published 2014.10.27
  • Filing date 2013.4.5

Example 1

  • Focal length f = 34.20mm
  • Fno. 1.45
  • Half angle ω = 32.32 °
  • Image height Y = 21.64mm
  • Lens length 129.16mm
  • BF 39.35mm

Source: [EG]

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Patent: Canon 55mm f/1.4 & Other Primes

Patent: Canon 55mm f/1.4 & Other Primes

A few more patents for various “normal” fast prime optical formulas have appeared. Among them, another 35mm f/1.4 mention, as well as a 55 f/1.4. Read the entire patent to see the various optical formula images.

Patent Description (Google Translated)

  • Patent Publication No. 2014-123018
  • Publication date 2014.7.3
  • Filing date 2012.12.21
  • Image height = 21.64mm
  • Inner focus
Example Focal length Fno. Half angle The overall length of the lens BF MOD
One 49.53 1.45 23.60 99.46 38.10 450
Two 35.88 1.45 31.09 126.92 38.77 300
Three 55.42 1.45 21.33 100.44 40.24 450
Four 50.75 1.45 23.09 98.17 38.29 450

Source: [EG]

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Canon EF 35 f/1.4L II to Finally Arrive? [CR1]

Canon EF 35 f/1.4L II to Finally Arrive? [CR1]

Canon EF 35 f/1.4L II
We received a a hands-on claim about a prototype Canon EF 35mm f/1.4L II. We’re told that the lens is in the hands of select photographers and could be announced in the first half of 2014.

It’s said that the lens is slightly wider than the current version but weighs a bit less. The lens has a new type of coating on at least one of the elements. The version that was tested had a 77mm filter thread.

This lens has been long rumoured for replacement and a few patents (here and here) have shown up over the years. However, it’s sounding like we may finally get to see one in 2014.

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Patent: Canon EF 35mm f/1.4L II

Patent: Canon EF 35mm f/1.4L II

Canon EF 35 f/1.4L II
A new patent for a Canon EF 35m f/1.4L II has shown it’s lovely head. We’ve seen patents previously and have heard various versions of the lens have been in testing for the past few years.

Patent Publication No. 2013-195747

  • Publication date 2013.9.30
  • Filing date 2012.3.21

Example 1

  • Focal length f = 14.17mm
  • Fno. 2.89
  • Half angle ω = 56.78 °
  • Image height 21.64mm
  • The overall length of the lens 133.50mm
  • BF 40.23mm
  • 14 pieces in 11 groups Lens Construction
  • 2 pieces of 2 aspherical surface
  • The effective diameter of the front lens 69.96mm

Example 2

  • Focal length f = 24.50mm
  • Fno. 2.80
  • Half angle ω = 41.45 °
  • Image height 21.64mm
  • The overall length of the lens 92.07mm
  • BF 38.07mm
  • 8 group 9 lenses configuration
  • 2 pieces of 2 aspherical surface
  • The effective diameter of the front lens 34.58mm

Example 3

  • Focal length f = 35.50mm
  • Fno. 1.45
  • Half angle ω = 31.36 °
  • Image height 21.64mm
  • The overall length of the lens 135.01mm
  • BF 38.56mm
  • 11 pieces Lens Construction 9 group
  • One piece of one aspherical surface
  • The effective diameter of the front lens 49.79mm

Also included in this patent are formulas for a 14mm f/2.8 and a 24 f/2.8.

Canon EF 35 f/1.4L $1479 at B&H Photo | Amazon

Source: [EG]

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