Dragonfly Telephoto Array is made of 10 Canon 400mm f/2.8 IS II lenses, and sees the faint structure of the universe

Dragonfly Telephoto Array

We wrote about this project time ago. Now it evolved and we won’t miss the news.

The Dragonfly Telephoto Array belongs to the University of Toronto’s Dunlap Institute for Astronomy and Astrophysics. The ten EF 400mm f/2.8L IS II make up for approximately $100,000. The lenses were mounted on ten SBIG STF-8300M CCD cameras, and that makes up for another whooping $20,000. There is also a Paramount ME-II robotic telescope involved, which is yours for just $135,000.

What is the thing good for? Quoting:

Dragonfly is designed to reveal the faint structure [of the universe] 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.

There are some research paper available if you are into this sort of scientific things:

[via DIYP]

The technology behind the Canon EOS 5DS and EOS 5DS R – Interview with developers

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Canon Asia posted an interview with the deveolpment team behind the Canon EOS 5Ds and EOS 5Ds R. An excerpt:

Question:What was the reason for not changing the AF sensor? Was it because the performance of the system on the EOS 5D Mark III was good enough?

Answer: Yes, you are right. The EOS 5D Mark III and the EOS 5DS series share exactly the same principles of forming an image on the focal plane. It can handle any number of pixels as long as the level of accuracy is maintained. The existing AF sensor is perfectly fine since it has a sufficiently high level of detection performance.

[…]

Question: What changes were made to the existing firmware following the upgrade of the pixel count to about 50 megapixels?

Answer: The huge amount of data has a significant impact on the firmware. In order to ensure speedy and smooth data processing under such conditions, advanced and complex processes are needed, such as parallel processing while switching between the memory spaces. As there is limited space in the built-in memory of the camera, it is important to consider how this space can be utilised most effectively.

Read the interview at Canon Asia.

Mirror Vibration Control System (image credit: Canon) – a) Down Cam Gear, b) Up Cam Gear, c) Mirror-driving Motor, d) Sub Mirror Bound Suppression Mechanism, e) Main Mirror f) Down Spring, g) Down Cam Gear, h) Up Cam Gear, i) Main Mirror Balancer, j) Mirror-driving Motor

Want to have a look at the EOS 5DS and EOS 5DS R features? The user manuals for the Canon EOS 5DS and EOS 5DS R can be downloaded at Canon Europe. Canon’s new EOS 5DS and EOS 5DS R are available for pre-order:

From the Canon EOS 5D Mark III to Canon EOS 5DS/5DS R, all the differences

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Canon DLC article about the differences between the EOS 5D Mark III and Canon’s new, 50MP EOS 5Ds and EOS 5Ds R. This is for all those that are thinking about switching from the EOS 5D Mark III to the EOS 5DS/5DS R.

Current EOS 5D Mark III shooters, who may be considering moving to the new high-resolution EOS 5DS (or the EOS 5DS R, which removes the effect of low-pass filtration), may wonder if anything changed on these new cameras because the new models look practically identical to the proven Mark III camera. Rest assured, there are some new rewards waiting to greet 5D Mark III owners who step up to the new cameras.

The article covers what changes most for EOS 5D Mark III users who are switching to the EOS 5DS/5DS R. Read the article at CDLC –>

Want to have a look at the EOS 5DS and EOS 5DS R features? The user manuals for the Canon EOS 5DS and EOS 5DS R can be downloaded at Canon Europe. Canon’s new EOS 5DS and EOS 5DS R are available for pre-order:

More about the EOS 5DS and 5DS R after the break.

Click here to open the rest of the article

Canon EOS 5DS and 5DS R Explained In-Depth (CPN)

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Canon Professional Network posted “The EOS 5DS & EOS 5DS R explained”, a technical article that goes deep into the features and technology of Canon’s new EOS 5DS and EOS 5DS R:

The EOS 5DS and EOS 5DS R represent a new line of ultra high-resolution EOS DSLR cameras – featuring 50.6 Megapixel sensors – that are ideal for photographers who want to capture an extraordinary amount of detail in their images. The new cameras will be popular with those shooting landscape and architectural photography, as well as those shooting commercial or high-end editorial work in the studio. The EOS 5DS and EOS 5DS R sit alongside the EOS 5D Mark III in the EOS range, and use new technologies to make the most of both of the cameras’ high-resolution capabilities.

EOS 5DS and 5DS R previews and hands-on: Canon Japan’s EOS 5DS image and video samples and EOS 5DS R image samples. EOS 5DS and 5DS R preview at Photography Blog, hands-on and sample pics at ephotozine, preview at DPReviewCPN Europe ArticleThe Digital Picture. A tip about which lenses are best for the EOS 5DS at The Phoblographer. A more technical and in-depth article by CPN. First impression from the videographer’s point of view at EOSHDFotosidan interview with Mike Burnhill at CPS, Canon Europe to talk about the upcoming, high resolution Canon Eos 5Ds and 5Ds R (12min video). Hands-on video in Italian. Hands-on video in German.

Pre-orders. Note: pre-orders are not yet open. Sign up to be notified when Adorama starts accepting pre-orders, or check the links below to subscribe to the notification.

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