Archive for: ef 50 f/1.4

Review – Canon EF 50mm f/1.4

Review – Canon EF 50mm f/1.4

New review
Justin has completed his review of the old Canon EF 50mm f/1.4 USM. The lens is about 20 years old now, yet still finds its way into a lot of people’s camera bags.

It’s a good lens optically, the AF and reliability of the focus motor can be a bit of an issue. However, for a mere $400, it’s well worth the money.

Read the full review | Canon EF 50 f/1.4 at B&H Photo

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Patent: Canon EF 50 f/1.8 IS

Patent: Canon EF 50 f/1.8 IS

Canon EF 50mm f/1.8 IS
A patent has show up showcasing an EF 50 f/1.8 IS lens. Could this be the replacement to the 50 f/1.4? We had heard about this lens existing last year. While some may desire a direct 1.4 replacement with IS, I think Canon may want some separation between the EF 50 f/1.2L and the next 50 in the lineup. We’ve also heard of a new EF 50 f/1.2L design being tested.

Patent Publication No. 2013-142782

  • Publication date 2013.7.22
  • Filing date 2012.1.11

Example 1

  • Focal length f = 51.51mm
  • Fno. 1.85
  • Half angle ω = 22.78 °
  • Image height 21.64mm
  • The overall length of the lens 76.78mm
  • BF 37.84mm
  • 8 pieces of 7 lens configuration

Source: [EG]

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Patents: New 50mm, 85mm & 135mm Lenses

Patents: New 50mm, 85mm & 135mm Lenses

New fast primes
The often talked about 50 f/1.4 and 135 f/2 have appeared in a new patent this week. We’ve heard that a replacement to the 50 f/1.4 would come first. A new 135 f/2L is a desired lens if they put IS into the upgrade. We’ve also heard a new 85 f/1.2L with reduced weight and approved AF performance was also on the horizon.

  • Patent Publication No. 2013-114133 (Google Translated)
    • Publication date 2013.6.10
    • Filing date 2011.11.30
Focal length Fno. The overall length of the lens BF Lens constitution
One 85.00 1.24 122.56 38.35 10 pieces of six groups
Two 83.30 1.80 116.11 39.11 10 sheets in 7 groups
Three 132.30 2.06 162.67 43.23 10 sheets in 7 groups
Four 51.70 1.41 87.84 38.94 7 group nine
  • Factors that chromatic aberration of magnification chromatic aberration or axial chromatic aberration occurs
    • Reducing the total length
    • Focal length for a long time
  • Glass material Abbe number 70-90, of 1.4-1.5 refractive index
    • Possible correction of axial chromatic aberration
    • Must increase a curvature, spherical aberration and curvature of field is generated
  • Canon patent
    • I use a glass material having an anomalous partial dispersion of the predetermined
    • Consisting of organic and inorganic compound

Source: [EG]

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Deals: Canon Deals at BuyDig

Deals: Canon Deals at BuyDig

From BuyDig
BuyDig has the following deals on Canon gear.

BuyDig is currently showing as the cheapest authorized dealers for Canon EOS 6D and Canon EOS 5D Mark III Canon bodies. There is currently no information about new Canon USA rebates, so these may be the best prices for a while. You may need to add the item to your cart to see the sale price and extras.

Canon EOS 6D Body $1879
Free Stuff Included: Canon bag, Adobe Elements 11 & USA Shipping)

Canon EOS 6D w/24-105 f/4L IS $2449
Free Stuff Included: Canon bag, Adobe Elements 11 & USA Shipping)

Canon EOS 5D Mark III Body $2999
Free Stuff Included: Memory Card & USA Shipping

Canon EOS 5D Mark III w/24-105 f/4L IS $3499
Free Stuff Included: Memory Card & USA Shipping

Canon EF 50mm f/1.4 USM Lens $319
Free USA shipping

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Canon EF 50 f/1.4 IS in 2013 [CR2]

Canon EF 50 f/1.4 IS in 2013 [CR2]

More non-L primes coming
Expect to see a new EF 50 f/1.4 IS sometime in 2013. There have been variations of a replacement for the very old (1993) EF 50 f/1.4 and it sounds like a 1.4 IS variant is going to be the winner. We have also heard of an f/1.8 IS version existing. Don’t expect such a lens to be much less than the $800 that the EF 24 f/2.8 IS, EF 28 f/2.8 IS and EF 35 f/2 IS all approximately cost.

The EF 85 f/1.8 is also in the works with an IS version we’re told. I haven’t heard anything about the very good EF 100 f/2 getting a replacement.

Source: [NL]

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