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 EF 40mm f/2.8 STM and the EF-M 22mm f/2 STM

  • Patent Publication No. 2013-137411
    • Publication date 2013.7.11
    • Filing date 2011.12.28
  • Example
    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


Canon Patent


Canon Patent




Canon EF 28mm f/2.8 IS and EF 35mm f/2 IS Reviews (The Phoblographer)

EF 28mm

Canon EF 28mm f/2.8 IS USM
Amazon, B&H, Adorama, Canon USA, Digitalrev, eBay

The Phoblographer reviewed both the Canon EF 28mm f/2.8 IS lens (review) and the Canon EF 35mm f/2 IS lens (review). Both reviews come with plenty of sample images.

About the EF 28mm f/2.8 IS:

Canon 28mm f2.8 IS is a stunning lens. It has an excellent build quality, can deliver wonderful images, focuses fast, and is nice and small

About the EF 35mm f/2 IS:

[…] delivers some wonderful image quality, has a solid construction to it, focuses quickly, and is extremely portable.

Canon EF 35mm f/2 IS
Amazon, B&H, Adorama, Canon USA, Digitalrev, eBay

35mm Comparison

Canon EF 28mm f/2.8 IS Review (The Phoblographer)

EF 28mm

Canon EF 28mm f/2.8 IS USM
Amazon, B&H, Adorama, Canon USA, Digitalrev, eBay

The Canon EF 28mm f/2.8 IS USM lens wasn’t highly regarded when it was announced. The price tag and questioning about the need of IS for a wide angle lens were the main critics. However, things changed. First of all, the lenses price dropped in the months after its announcement, and for the time being the EF 28mm f/2.8 IS is on sale with a $150 discount (in the US) and has a price tag of $649. That’s rather ok for a lens with such good characteristics. Let’s see the specs (taken from Adorama’s product page):

  • Optical Image Stabilizer provides up to 4 shutter speed stops ofcorrection.
  • Ring USM, high-speed CPU, and optimized AF algorithms for fast autofocusing.
  • Full-time manual focus for manual adjustment while in AF mode.
  • Aspherical lens elements improve peripheral image quality.
  • Circular diaphragm (7 blades) delivers beautiful, soft backgrounds.
  • Silent and smooth operation makes it suitable for video shooting.
  • Minimum focusing distance: 0.23m.
  • Compact design

The Phoblographer had his hands on the EF 28mm, and they were fairly impressed by the super fast AF, the brilliant colors, the build quality and the small size. The lens was tested using a Canon EOS 5D Mark II. In the conclusion they write:

We really have to admit: we’re extremely pleased with what Canon is doing with this lens so far. The colors are awesome, the blur free possibilities is an excellent bonus, the sharpness is brilliant, and focusing is like I gave my 5D Mk II steroids. When you consider the fairly affordable price too, you’ll realize that you’re getting quite a sweet deal.

The review comes with plenty of sample images. IQ is really good, though there is some vignetting. I own the previous iteration (without IS) and it always was a lens that I loved to use. On an APS-C sensor the Ef 28mm becomes a (more or less) normal lens.

[via The Phoblographer]

New Voigtlander Color Skopar 28mm f/2.8 (Canon Mount) Starts Shipping Tomorrow (Sep. 13th)

That’s right: The new Voigtlander 28mm f/2.8 starts shipping on September 13th. Price is $625.00/€549.00 and B&H is accepting orders (click here). Nice little pancake lens with high optical quality and no Auto-Focus.

Focal Length 28mm
Aperture Ratio 1:2.8
Smallest Aperture F 22
Lens Construction 6 groups,
7 elements
Picture Angle 74.8°
Aperture Blades 9
Nearest Distance 0,22m
Macro 1:5
Diameter 63.3mm Nikon AI-S
70.0mm Canon EOS
Length 24.5mm Nikon AI-S
27.0mm Canon EOS
Weight 180g Nikon AI-S
230g Canon EOS
Filter Size 52 mm
Colour black
Mount AI-S (CPU intergrated)
Canon EOS
Item Number 19650 Nikon AI-S
19651 Canon EOS
Recommended Retail Price 529,- Euro Nikon
549,- Euro Canon
Optional, not included LH 28N Lenshood

[Review] EF 24mm f/2.8 IS USM and EF 28mm f/2.8 IS USM (and why it is better to have newer lenses for new gear)

ephotozine reviewed Canon’s new EF 24mm f/2.8 IS USM ($850, click here) and EF 28mm f/2.8 IS USM ($800, click here). Both lenses are the second iteration, adding Image Stabilization and USM to its features. They replace some rather old, and affordable, lenses, the EF 24mm f/2.8 ($374, click here) and the EF 28mm f/2.8 ($259, click here). These lenses are somewhat discussed. They have good performance but it is common opinion that the price tag is a little exaggerated. However, all reviews I saw are crediting these lenses having good optical properties and overall performance. These lenses are particularly useful for videographers. ephotozine wanted to have a closer look on both lenses.

Canon EF 24mm f/2.8 IS USM Pros (click here for the review)

  • Good build quality
    Image Stabilisation
    Excellent sharpness
    Focuses close

Canon EF 28mm f/2.8 IS USM Pros (click here for the review)

  • Good build quality
    Image Stabilisation
    Outstanding sharpness
    Focuses close

Finally, I want to feature a post by Scott Bourne about how important new glasses are for new DSLRs. The article takes AF performance as an example: if you are not using pro glasses on pro gear you can’t expect that your DSLR will perform as expected. And there is more (emphasis mine):

I spoke with Canon representatives who prefer to remain unnamed and they admitted that the new AF systems on the 5D Mk IIIand 1DX are optimized to work with the newest, fastest glass.

So the thing to know is this. If you expect a remarkable improvement in AF just because you buy a new 5D MK III or 1DX you may be slightly disappointed. You need that fast, new glass too.

Simple, isn’t it? :-) Good that there is a huge Canon lenses August discount program going on (click here)!

EF 24mm f/2.8 IS USM price check: Amazon, B&H, Adorama, Canon USA, Digitalrev, eBay EF 28mm f/2.8 IS USM price check: Amazon, B&H, Adorama, Canon USA, Digitalrev, eBay

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