Archive for: lens

APS-C 11mm f/2 Patent

APS-C 11mm f/2 Patent

 

A patent for a super high performance APS-C lens has been issued. The lens is a 17mm equivalent on a crop camera. It’s said to have super performance.

  • Patent Publication No. 2011-65138
  • Published 2011.3.31
  • Filled 2009.8.17
  • Focal distance f = 11.1mm
  • Fno = 2.0
  • Half angle of view 49.7 deg.
  • Aspherical 3
  • Image height 13.20mm

From Egami

cr

24-70 II in April? [CR2]

24-70 II in April? [CR2]

The end in sight?
A good source says “I’d be surprised to see the next 24-70 not announced in April”. The source does caution things could go awry because of these apparent lens delays.

The source also says the lens will be “with IS”.

I look forward to the end of the speculation on this lens.

cr

EF-S 18-200 f/3.5-5.6 IS Service Advisory

EF-S 18-200 f/3.5-5.6 IS Service Advisory

This is probably what I was being told when an 18-200 II was mentioned.

So for the 8 people that own this lens (Sorry Canon), you can get it fixed for free.

22 February 2011

To: Users of the EF-S 18-200mm f/3.5-5.6 IS interchangeable lens for Digital SLR Cameras

Thank you for using Canon products.

We have discovered that some EF-S 18-200mm f/3.5-5.6 IS lens products may have screws that come loose inside the lens and which may interfere with zoom operation of the lens. We would like to convey the details and our service policy.

We offer our sincerest apologies to customers who have been inconvenienced by this phenomenon. Canon always strives to provide the highest quality products to our customers and we spare no effort in our quality management to make sure our customers can use our products with confidence. We hope our efforts will earn your understanding.

Phenomenon
There are cases in which the zoom barrel gets stuck and stops moving during zoom operation.

Affected Product
Digital SLR camera interchangeable lens “EF-S 18-200mm f/3.5-5.6 IS” Serial Numbers 450xxxxxxx to 631xxxxxxx

User Support
The products with this phenomenon will be inspected and repaired free-of-charge. If you own one of the affected products, please contact our customer service hotline. We appreciate your patience, and we offer our sincerest apologies to the customers using these products who have been inconvenienced by this issue. Our free repair service will start on 22 February 2011.

cr

Canon Officially Acknowledges Lens ID Issue

Canon Officially Acknowledges Lens ID Issue

We’ve reported previously that certain Tamron lenses do not work fully with the Canon EOS 7D. The outer crosstype AF points do not work properly. It was discovered that Tamron used Lens ID’s that Canon no longer supported.

Canon made official what we already knew.

The following cameras are affected.

  • EOS 7D
  • EOS 60D
  • EOS 50D
  • EOS 40D

The following Canon lenses are affected

  • EF 35-80 mm 1:4-5,6
  • EF 35-80 mm 1:4-5,6 II
  • EF 35-80 mm 1:4-5,6 III
  • EF 35-80 mm 1:4-5,6 USM
  • EF 35-105 mm 1:4-5,6
  • EF 35-105 mm 1:4-5,6 USM
  • EF 80-200 mm 1:4,5-5,6 II
  • EF 80-200 mm 1:4,5-5,6 USM

The following Tamron lenses are affected

  • 17-50 f/2.8 VC
  • 60 f/2 Macro
  • 70-200 f/2.8
  • 10-24 f/3.5-4.5

cr

Canon USA Lens Rebates?

Canon USA Lens Rebates?

Save more!
News of additional lens rebates for February 20 until March 19.

  • EF 70-200 f/2.8L IS II $200
  • EF 16-35 f/2.8L II $120
  • EF 70-300 f/4-5.6L IS $100
  • EF 24-70 f/2.8L $100
  • EF 100 f/2.8L IS Macro $100

Double Rebates if purchased with select bodies. 60D, 7D, 5D II, 1D IV, 1Ds III.

thanks james

cr

EF 300 f/4L IS II Patent

EF 300 f/4L IS II Patent

A patent for a 300 f/4L IS II has been filed in Japan. Remember, patents don’t always become real products.

Patent Publication No. 2011-27864

  • published 2011/02/10
  • filled 2009/07/23
  • Embodiment 1
  • focal distance f = 294.00mm
  • Fno = 4.14
  • angle of view 8.24 degrees
  • image circle 43.28mm
  • lens length 245.03mm
  • back focus 86.14mm

The Camera Shake:

  • The shake by a human is around 0.1-10Hz (low frequency).
  • The shake by a tripod is around 4-35Hz.
  • The shake by an in-vehicle camera is several Hz – around several hundred Hz (high frequency).
  • The conventional camera shake revision cannot revise a shake of the high frequency.
  • Because the shake revision revise a shake by mechanical movement.
  • The electro-optic effect supports movement of 100Hz or more kHz.

Pictures after the break.

EF 300 f/4L IS II

EF 300 f/4L IS (1997)

cr

EF-S 15-60 f/2.8 IS [CR1]

EF-S 15-60 f/2.8 IS [CR1]

Coming May 2011?
A replacement of the EF-S 17-55 f/2.8 IS could take the form of an EF-S  15-60 f/2.8 IS. It would have the same build quality of the current 15-85. May 2011 was mentioned for an announcement.

CR’s Take
I’ve seen similar stuff about the 17-55 in the past. It’s a lens that could use a refresh to keep the EF-S range from becoming stagnant. Canon is committed to APS-C.

cr

Canon EF 200-400 f/4L IS Development Announced

Canon EF 200-400 f/4L IS Development Announced

London, UK, 7th February 2011 – Canon today announces the development of a telephoto zoom lens featuring an integrated focal length extender – the EF 200-400mm f/4L IS USM EXTENDER 1.4x. The lens will be displayed for the first time during CP+, held in Yokohama, Japan.

Designed for Canon’s leading range of EOS Digital SLR cameras, the new lens will be an ideal addition for sports and wildlife photographers, offering exceptional flexibility with a built-in 1.4x extender that creates an increased focal range of 280 – 560mm.

Perfect for photographers who require high performance, fast aperture and a flexible telephoto range, the EF 200-400mm f/4L IS USM EXTENDER 1.4× will enable photographers to shoot a greater breadth of subjects using a single lens, delivering the best possible image quality at all focal lengths.

Developed as a new addition to Canon’s acclaimed L-series of professional lenses, the new lens will offer an unsurpassed combination of versatility, first-class optical performance and an enhanced weather-proof construction. The model will be released as part of Canon’s continued development of its EF lens line-up, offering enhanced performance and improved functions that cater for the needs of photographers from beginners through to professionals.

The EF 200-400mm f/4L IS USM EXTENDER 1.4x is scheduled for launch during 2011.

cr

Canon Officially Announces the 500 f/4L IS II & 600 f/4L IS II

Canon Officially Announces the 500 f/4L IS II & 600 f/4L IS II

London, UK, 7th February 2011 – Canon today launches two new super-telephoto lenses for its leading EOS Digital SLR (DSLR) range – the EF 500mm F/4L IS II USM and the EF 600mm F/4L IS II USM. Designed to meet the needs of the most demanding sports and wildlife photographers, both lenses offer breakthrough performance, delivering consistently high-quality images and incredible mobility. The launch of the models follows a development announcement in August 2010, and the display of prototypes at Photokina 2010 in Cologne, Germany.

Launching into Canon’s professional L-series, the models replace the widely-respected EF 500mm F/4L IS USM and EF 600mm F/4L IS USM, and are designed to achieve unparalleled levels of image quality. Each includes the highest-quality optics and the latest Canon Image Stabilizer (IS) technology, while magnesium alloy constructions with titanium components make each lens significantly lighter and even more durable. Launching as the lightest lens in its class*1, the EF 600mm F/4L IS II USM benefits from an exceptional 27% reduction (1.4kg) in weight compared to its predecessor, while the EF 500mm F/4L IS II USM offers an impressive reduction of 17% (680g).

New levels of performance

Both lenses feature completely redesigned optics, with 16 elements in 12 groups. Canon has over 40 years of experience in the manufacturing of fluorite lens elements, and has utilised two high performance fluorite elements in these lenses– delivering high resolution, high contrast shots rich in detail across the frame.

Both lens’ optical elements feature Canon’s Super Spectra Coatings and a SubWavelength Structure Coating (SWC), optimised to effectively reduce ghosting and flare. A water-repellent fluorine coating is also used on the surface of the front and rear elements, repelling dust and dirt for clearer shots, and keeping the front element free of marks by ensuring water droplets run off the lens quickly.

Enhanced IS, precise AF

Both models feature Canon’s latest Image Stabilizer system, offering outstanding image quality during handheld shooting and allowing users to shoot at speeds up to four times slower than normally required. IS Mode 2 features new algorithms to improve performance when panning, and the new IS Mode 3 is also included, assisting users when switching between subjects by activating the IS unit only during exposure.

Both lenses offer a constant f/4 aperture, allowing photographers to achieve excellent image quality in low light and capture clear, sharp shots of fast-moving subjects. The wide aperture also allows users to creatively isolate their subjects from the background, with a nine-blade circular iris creating beautiful background blur that instantly adds atmosphere to an image.

Rapid, quiet Auto Focus (AF) is provided by a ring-type Ultrasonic Motor (USM). Photographers can also utilise full-time manual focusing functionality, which enables the fine-tuning of focus even when the AF system is activated, providing even greater control over image capture. Power Focus mode also assists users during video shooting, allowing the photographer to smoothly adjust focus during filming by twisting the focus recall ring.

Premium L-series design

Both lenses have been designed as part of Canon’s renowned elite L-series, combining exceptional-quality optics with stylish designs. Both also feature a revised layout, with carefully-positioned controls that improve everyday operation. The AF stop buttons are now location-adjustable, improving ergonomics by allowing users to custom-select the position of the lens grip where the AF stop buttons are located.

Mechanical improvements include optional long or short foot tripod mounts suitable for monopods or tripods. An improved tripod collar rotational mechanism provides a smoother movement when turning the lens from portrait to landscape orientation, and a Kensington-type wire security lock has also been included, keeping the lenses secure during location-based shoots. The robust design is also weatherproof, making both lenses suitable for use in extreme conditions when paired with a weatherproof EOS body.

cr

Canon 400 f/5.6L IS in April? [CR1]

Canon 400 f/5.6L IS in April? [CR1]

A wanted lens to a lot of people was mentioned on a Swedish forum. A 400 f/5.6L IS.

Announcement coming in April?

Read More: Google translated link

CR’s Take
It’s a wishlist lens for sure with a lot of people. With the things going on with Canon’s ability to make the new lenses, I have doubts about any announcement in April for glass.

thanks jimmy

cr