Archive for: ef 35 f/1.4L II

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]

cr

32 Comments

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]

cr

15 Comments

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.

cr

71 Comments

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]

cr

31 Comments

January 8, 2013 Announcements?

January 8, 2013 Announcements?

Not hearing much…
CES starts next week and with it a lot of camera companies will be launching consumer level products. Last year Canon launched the PowerShot G1 X for CES and that was about it.

No media events have been planned by Canon for next week. 99% of the time if Canon is launching a significant camera, there is some kind of media invite to showcase the new cameras.

However, when lenses are announced, that is not always the case. There was no media invites when the EF 24-70 f/4L IS and EF 35 f/2 IS were announced.

We’ve heard that two, possibly 3 lenses could be announced on January 8, 2013, but we have not received any confirmations from known sources yet.

cr

35 Comments

Announcement on January 8, 2013? New Lenses [CR1]

Announcement on January 8, 2013? New Lenses [CR1]

New lenses soon?
I have received my first announcement date of 2013. It’s apparently going to be January 8, 2013.

What is coming that day?
I am told 2 new L lenses. The EF 35 f/1.4L II and EF 14-24 f/2.8L will be announced. Both lenses would be available by the end of March 2013. The EF 35 f/1.4L II is a complete redesign and has 2 UD elements.

This is a [CR1] for now as I try and get confirmation of the announcement date and the lenses that are coming.

cr

141 Comments

Canon Announcements Next Week? [CR1]

Canon Announcements Next Week? [CR1]

For PhotoPlus 2012
A few murmurs about Canon announcements next week. All the talk about a development announcement for a large megapixel camera have gone completely quiet. Most of what was talked about was from new sources, known sources said they hadn’t heard anything.

There is some talk about lens announcements taking place early next week. Although no one is committing to which lenses will get announced. The usual suspects are an EF 35 f/1.4L II and the EF 200-400 f/4L IS 1.4x. The latter is the most likely, with the other less of a possibility. I do expect something from Canon, but they’re holding their cards pretty close to the chest.

From reports earlier in the year, we’re still two short on the DSLR/Mirrorless announcements for 2012 and a few lenses as well. However, with the production problems Canon has had with lenses, it’s a good bet a lot of things have been delayed.

What DSLRs could be coming in 2012? The first would be the EOS-1D C becoming official, that would leave one more camera to be announced in 2012. My bet would have been on a Rebel T4, however we’re getting pretty close to the Christmas shopping season for an announcement like that. With the problems they’ve had with the Rebel 650D, it’s possible that too has been delayed. The big megapixel camera, would be a development announcement with availability well into 2013 according to most. We’ll have to see if that comes to fruition.

We also hope to find out about delays in production of the EF 500 f/4L IS II & EF 600 f/4L IS II, the last I heard we won’t see them until November.

cr

11 Comments

More Big Megapixel Talk [CR1]

More Big Megapixel Talk [CR1]

A bit more information
I’m told that the coming big megapixel camera is a very new sensor design/overhaul. The emphasis is in the dynamic range of the sensor. Performance is said to be on the level of medium format, even better than the impressive D800.

The same person also says the camera won’d be a “3D” or any other “D”, it will get an all new naming scheme.

EF 35 f/1.4L II
This is apparently also ready for an announcement, now that the manufacturing issues with the EF 24-70 f/2.8L II have been solved. This lens could come at PhotoPlus along with the new EF 200-400 f/4L IS 1.4x.

Most of the information lately has been through third parties and from new sources, so keep the salt shaker beside you.

thanks for the info

c

196 Comments

Canon EF 35 f/1.4L II [CR2]

Canon EF 35 f/1.4L II [CR2]

The next 35mm…
The oft rumored EF 35 f/1.4L II is being talked about again. We’re told an announcement for the new “L” prime will only happen once the new EF 24-70 f/2.8L II begun shipping in decent quantity.

That would put the announcement sometime in 2012 with availability probably being in early 2013. One patent for the optical forumla has been around for a while.

I’m told as many as 3 prototypes exist, though they have only made it to a very select few photographers.

CRs Take
I’m pretty confident this lens will be announced sooner than later, and I wouldn’t be surprised to see it paired with a new high megapixel camera.

c

30 Comments

Patent – EF 35 f/1.4L II

EF 35 f/1.4L II

Canon files patent for EF 35 f/1.4L II

  • Patent Publication No. US 7,944,625
  • Published 2011.5.17
  • Filled 2009.8.5

Specifications

  • Focal Distance: 34.59
  • Fno: 1.45
  • Half angle of view: 32.02
  • Image Height: 21.64
  • Lens Length (mm): 126.93
  • Back Focus (mm): 37.98

This is definitely a lens the Canon world wants to see. How do you improve a classic? I’m sure they’ll find a way.

thanks George

cr

Canon EF 35 f/1.4L $1469.00 at B&H

14 Comments