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October 5, 2014
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Posted in Reviews

Canon Ambassador Richard Walch about EOS 7D Mark II And EF 400mm f/4 DO IS II

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FotoTV on Youtube published an interview with Canon Ambassador Richard Walch about the new EOS 7D Mark II and the likewise new EF 400mm f/4 DO IS II lens.

The EOS 7D Mark II is available for pre-order. In Germany Wex Photographie is accepting pre-orders for the EOS 7D Mark II (€1,699). The new EOS 7D Mark II can be pre-ordered also in the USA. Shipment is expected for November 2014 and orders will be shipped on a first come first serve basis:

7d2_king

World-wide pre-order links after the break. Read the rest of this entry →

September 17, 2014
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Posted in Reviews

Canon EF 400mm f/4L IS DO II Hands-On Review and Sample Pics

Matt Granger posted a short video with his impressions about the new Canon EF 400mm f/4L IS DO II lens (Adorama | B&H).

There are also some sample pics shot with Canon’s new 400mm DO lens.

Canon EF 400mm f/4L IS DO II

September 11, 2014
Posted in Rumors

More Image and Specs Leak: Canon EF 24-105mm IS STM and EF 400mm f/4 DO IS II Lenses

 

After the EOS 7D Mark II, another leak is coming from digicame-info. Images and specs of the EF 24-105 f/3.5-5.6 IS STM and EF 400mm f/4 DO IS II lenses surfaced.

I expect Canon to announce the new products either tomorrow or monday. Stay tuned…

EF 24-105mm IS STM
Canon EF 24-105 f/3.5-5.6 IS STM:

– One UD lens and two glass mold aspherical lens
– AF drivent by stepping motor
– Full-time manual focus
– 4 stops IS
– Maximum magnification is 0.3x
– New kit lens for the EOS 6D

EF 24-105mm IS STM
Canon EF 400mm f/4 DO IS II:

– Total length 232.7 mm
– Weight is 2100 g
– Third generation  DO lens
– One large-diameter UD lens
– One large-diameter aspherical lens grinding
– 4 stop IS
– Special coating SWC
– Dust and water resistant

[via digicame-info]

August 29, 2014
Posted in Rumors

Canon Set To Announce New Lenses Very Soon (EF-S 24mm f/2.8 STM, EF 24-105mm F3.5-5.6 IS STM, EF 400mm F4 DO IS II USM)

400
Canon EF 400mm f/4 DO IS

Digicame (translated) posted what I am not shy to define as the first reliable rumor on what Canon is going to announce at Photokina 2014. Yes, these lenses are going to be announced at Photokina 2014!

  • EF-S 24mm f/2.8 STM
  • EF 24-105mm f/3.5-5.6 IS STM
  • EF 400mm f/4 DO IS II USM

The EF-S 24mm f/2.8 STM was previously rumored to be an EF lens, instead it is an EF-S lens. Not yet sure if it will be a pancake lens.

The EF 24-105mm f/3.5-5.6 IS STM is aimed at full-frame shooters, who will soon enjoy the benefits of the STM technology for their video shooting. This lens will probably be the next kit lens for the 6D. It will for sure be cheaper than an “L” grade lens. No one saw this lens come.

Finally, the EF 400mm f/4 DO IS II USM lens is the successor to the Canon EF 400mm f/4 DO IS. Several patents filed by Canon in the past pointed in this direction, the latest patent being this one.

Stay tuned, I am sure pictures will follow soon.

[via digicame.info]

July 12, 2014
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Posted in News

10 Canon 400mm Lenses Used To Detect The Faint Structures Of The Universe

Canon 400mm
The Dragonfly with 8 lenses mounted – image © Dunlap Institute for Astronomy and Astrophysics

Thanks Chris

Dragonfly is a project by the Dunlap Institute for Astronomy and Astrophysics in Toronto, Canada. It consists in a multi-lens array designed for ultra-low surface brightness astronomy at visible wavelengths. It uses 10 commercially available Canon 400mm lenses. The lenses in the picture above seem to be Canon EF 400mm f/5.6L USM lenses.

The project was commissioned in 2013. The lens array should be capable of detecting the obscure and utterly complex structures that can be found around a galaxy:

According to Cold Dark Matter (CDM) cosmology, structure in the Universe grows from the “bottom up”, with small galaxies merging to form larger ones. Evidence of such mergers can be seen in faint streams and filaments visible around the Milky Way Galaxy and the nearby M31 galaxy.

Dragonfly is used to find those structures. How does it work?

Dragonfly is designed to reveal the faint structure by greatly reducing scattered light and internal reflections within its optics. It achieves this using ten, commercially available Canon 400mm lenses with unprecedented nano-fabricated coatings with sub-wavelength structure on optical glasses.

The Dragonfly project is funded by DAA Prof. Roberto Abraham’s NSERC Discovery Grant, with initial funds provided by the Dunlap Institute and Yale University, and an NSERC equipment grant awarded in 2013.

For more information head over to the Dunlap Institute’s site.

 

 

June 21, 2014
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Posted in Patents

Canon Patent For 400mm f/4 IS DO Lens

Canon Patent

Egami (translated) spotted a patent filed by Canon for a 400mm f/4 IS DO (diffractive optics) lens.

  • Patent Publication No. 2014-109700
    • Publication date 2014.6.12
    • Filing date 2012.12.3
  • Example 1
    • Focal length f = 392.00-381.59-332.99mm
    • Fno.
    • Half angle ω = 3.16-3.10-2.81 °
    • Image height Y = 21.64mm
    • The overall length of the lens 292.02mm
    • BF 105.64mm
December 27, 2013
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Posted in Rumors

Canon Rumor: New EF 400mm IS on the Way?

Canon Rumor

Canon EF 400mm f/5.6L USM: Amazon, B&H, Adorama, Canon USA, Digitalrev, eBay

It appears that stocks for the EF 400mm f/5.6L USM are getting low in some regions, and promptly there is a rumor suggesting a new EF 400mm f/5.6 with image stabilisation may be on its way. There had previous rumours that 2014 could be a “year of the lenses” for Canon, with lot of glass set to come. We haven’t heard anything about a possible successor of the EF 400mm, but then: the EF 400mm was released in 1993 so a makeover has some plausibility. As usual take it with a grain of salt and keep in mind that only time will tell.

[via NL]

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