Archive for: EF 400 f/2.8L IS II

Dragonfly, Powered by Canon Lenses

Dragonfly is an innovative, multi-lens array designed for ultra-low surface brightness astronomy at visible wavelengths. Commissioned in 2013, the array is proving capable of detecting extremely faint, complex structure around galaxies.

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.

Image Copyright University of Toronto

Image Copyright University of Toronto

But the CDM model predicts that we should see more of this structure than is currently observed. However, images obtained using even the largest, most advanced telescopes today contain scattered light that may be hiding this faint structure.

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.

Read More at the University of Toronto

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The Canon EOS 7D & EF 400 f/2.8L IS II Break a Record

The Canon EOS 7D & EF 400 f/2.8L IS II Break a Record

Canon used to make 320 gigapixel image….
To see the gigapixel image and share your favourite views of London visit:http://btlondon2012.co.uk/

An amazing image of London taken from the top of the BT Tower has set a new record for the world’s largest panoramic photo. The image shows a full 360 degree view of London in incredible detail.

The 320 gigapixel image, taken by expert photography firm 360Cities, comprises more than 48,000 individual frames which have been collated into a single panorama by a powerful workstation. It is the first time that an image of this magnitude has ever been attempted, and it took several months to create due to the scale of the endeavour. If printed at normal photographic resolution, the BT Tower panorama would be 98 meters across and 24 meters tall, almost as big as Buckingham Palace. In comparison, the last record attempt for a London panorama was 80 gigapixels, taken from Centrepoint in 2010.

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Is the EF 800 f/5.6L IS Due for Replacement? [CR2]

Is the EF 800 f/5.6L IS Due for Replacement? [CR2]

Replacement of the big one?
I have been told on a few occasions that a replacement of the EF 800 f/5.6L IS is coming. An announcement could come as early as late Q1/Q2 of 2013. The new lens would incorporate Canon’s new weight saving technology.

Nikon has an 800 f/5.6 VR coming down the pipeline, and I spoked with someone that had a chance to handle the lens in London during the Olympics. He mentioned that the lens barely felt heavier than the new Canon EF 500 f/4L IS II which weighs in at a hair over 7lbs. If true, that would be pretty great, as the current Canon EF 800 f/5.6L IS weighs in at 9.9lbs.

Another sign that a new 800 may be on the way is the lens hood ET-155 has been discontinued by Canon. This hood was also used on the Canon EF 400 f/2.8L IS, and that lens has since been replaced. I know of the discontinuation as I have had one backordered from Canon for nearly 6 months. B&H Photo just informed me today that the lens hood is no longer available. Canon still lists the ET-155 as the lens hood for the 800. I will try the ET-155WII, which comes with the new EF 400 f/2.8L IS II and see if it fits.

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EF 500 f/4L IS II & EF 600 f/4L IS II Stock News

EF 500 f/4L IS II & EF 600 f/4L IS II Stock News

More are coming!
We knew more would come eventually, but when?

I’m told new stock should start hitting retailers sometime this month and next month, it may not be enough to clear the preorder backlog though.

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

Big white firmware 1.1.1 update
I have sent our 300, 400 and 600 in to Canon Canada today for the firmware update, I’ll update you on how long the process takes.

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Canon USA Announces EF 300mm, 400mm, 500mm and 600mm L IS II Lens Firmware Version 1.1.1

Canon USA Announces EF 300mm, 400mm, 500mm and 600mm L IS II Lens Firmware Version 1.1.1

To the Users of the EF300mm f/2.8L IS II USM, EF400mm f/2.8L IS II USM, EF500mm f/4L IS II USM, and EF600mm f/4L IS II USM Interchangeable Lenses for Canon Digital SLR Cameras

Thank you for using Canon products.

Canon has released a firmware update for EF300mm f/2.8L IS II USM, EF400mm F2.8L IS II USM, EF500mm f/4L IS II USM and EF600mm f/4L IS II USM lenses. This firmware update will be performed by Canon Service Centers. Please contact us using the contact information listed at the bottom of this page.

Firmware changes:
Firmware Version 1.1.1 incorporates the following enhancement:

1. Changes the control algorithm of the focus drive, and enhances the drive’s responsiveness for more precise focus and adjustments. In particular, the new firmware enhances the AI servo AF capability of the lenses to track objects that move irregularly in sports events, such as soccer or rugby.

Affected Products:
Firmware Version 1.1.1 is for lenses with Firmware Version 1.0.0. If the lens’ firmware is already Version 1.1.1, it is not necessary to update the firmware. The serial numbers (10 digits) of the lenses equipped with Firmware Version 1.0.0 are as follows:

EF300mm f/2.8L IS II USM:
The third digit in the serial number is either 0, 1, 2, or 3 (xx0xxxxxxx, xx1xxxxxxx, xx2xxxxxxx, xx3xxxxxxx).

EF400mm f/2.8L IS II USM:
The third digit in the serial number is either 0, 1, 2, or 3 (xx0xxxxxxx, xx1xxxxxxx, xx2xxxxxxx, xx3xxxxxxx).

EF500mm f/4L IS II USM
The third digit in the serial number is 0 (xx0xxxxxxx).

EF600mm f/4L IS II USM
The third digit in the serial number is 0 (xx0xxxxxxx).

Lenses with serial numbers other than those listed above are equipped with Firmware Version 1.1.1 or later.

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