Archive for: lenses

Canon Mirrorless Information [CR1]

Canon Mirrorless Information [CR1]

A bit of information
With Canon’s expected foray into the mirrorless segment just around the corner, a bit more information has started to flow.

Lenses
We’re told the new camera is in fact a new mount, I think most expected this. The camera will launch with at least 2 lenses and an EF adaptor. One lens will be a wide angle “kit” lens as well as a telephoto lens.

No word on whether or not the EF adaptor would also adapt EF-S lenses, though I would hope it did.

It is also suggested that the new primes that Canon has announced and released (24, 28, & 40mm) are the first in a series of small prime lenses meant to work well with EOS EF and the mirrorless camera.

Body
Information about the body itself is pretty vague. It’s still suggested the camera will use the 14mp CMOS G1 X sensor. A “good” ISO range and “average” video performance. A video focused camera could be “in the future”.

EF Lens Adaptor
We have posted a couple of patents in the past about such an adaptor. You can view them here and here.

Northlight has posted a cool little diagram showing the size of the EF adaptor in comparison to the new EF 40 f/2.8 pancake.

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Patent: Canon EF 35 f/1.4L II

Canon EF 35 f/1.4L Patent
A new patent for a 35mm f/1.4 optical formula has appeared. This is the first to appear since 2011 in regards to an updated 35 f/1.4L. View the previous patent here.

Canon EF 35 f/1.4L II?

Patent Publication No. 2012-123155

  • 2012.6.28 Release Date
  • 2010.12.8 filing date

Example 1

  • Focal length f = 34.73mm
  • Fno. 1.45
  • Half angle of 31.92 deg.
  • Image height 21.64mm
  • Length 128.11mm lens
  • 38.48mm back focus
  • An effective diameter of 52.03mm lens
  • Effective diameter aperture 25.52mm
  • Lens Construction 12 elements in 9 groups sheet
  • 2 2 aspherical surface
  • 2 UD glass sheet

Retrofocus

  • And retro focus lens optical system focal length is shorter than the length of the optical system
  • Increasingly asymmetric refractive power arrangement must be strengthened a negative refractive power of the front group in particular
  • Coma aberration, astigmatism, spherical aberration occurs
  • Order to secure a back focus must be to increase the ratio retro

Source: [EG]

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Canon EF 24-70 f/2.8L II Availability

Canon EF 24-70 f/2.8L II Availability

July/August 2012
I am still being told by a couple of retailers that we’ll see the new EF 24-70 f/2.8L II in late July or early August. Initial stock will be pretty good, though I do expect that all initial preorders won’t be fulfilled with the first batch.

There is a bit of a shortage here in Canada on Canon lenses, there are lots of long running backorders. It does feel like Canon has allocated some manufacturing to the new lens(es) over the older stuff.

Preorder EF 24-70 f/2.8L II B&H | Adorama

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Canon EF 100-400 f/4-5.6L IS [CR2]

Canon EF 100-400 f/4-5.6L IS [CR2]

More information
Now that the EF 24-70 f/2.8L has been redone, the most requested lens to be replaced with a new version is the Canon EF 100-400 f/4.5-5.6L IS.  A few patents exist for a new 100-400, you can see them here and here.

The lens isn’t for an immediate announcement, as we’re told they may be waiting for Nikon to announce the much needed replacement to their 80-400.

We’re told 2 designs currently exist for the lens, and at least one of them has a zoom ring instead of the polarizing “push/pull”. The lens is also said to be weather sealed, slightly faster starting at f/4, a bit heavier than the current version and has the latest and greatest IS system.

This lens could also be considered the IS replacement for the EF 400 f/5.6L, especially if it’s better optically. I’m sure this point may not be what a lot of people wanted to read.

No mention of a timeframe for an announcement. I suspect it’ll be after the 200-400.

cr

88 Comments

Rebates & BG-E11 Shipping Updates

Canon Rebates Extended
The Canon rebate program that was set to expire at the end of May has been extended until the end of June. This is the double up savings program if you buy a camera body along with a lens. There are also instant rebates on lens purchases only.

The 5D Mark III isn’t found in stock in too many places, so at least you get an extra month if you’ve been waiting to take advantage of the rebate when buying a 5D3.

Click to go

Visit B&H for the rebate portal.

BG-E11 Shipping Everywhere
I’ve received notifications that B&H and Adorama have begun shipping the BG-E11 to preorder customers.

Sigma Lens Rebates
Sigma has rebates going on until July 31, 2012. Visit B&H for more.

Canon EF 500 f/4L IS II & EF 600 f/4L IS II Availability
Various smaller retailers have received lenses. I know of a couple of 500’s that appeared in Toronto, and I received my 600 today.

I know B&H is expecting a shipment this week, however there is a preorder wait list. They expect the first 2 shipments to cover what is already preordered. I am unsure about the status with Adorama.

B&H: 500 f/4L IS II | 600 f/4L IS II Adorama: EF 500 f/4L IS II | EF 600 f/4L IS II

If you’re a retailer and get a 500 or 600 in stock that isn’t spoken for, please let me know and I can let the readers of CR know.

5D Mark III Stock
Stock of the 5D Mark III is low at the moment. Shipments for the camera should start arriving near the end of this week. I’m waiting to hear from the large retailers.

cr

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