The Science and Technology behind Canon’s “L” Lenses

The Canon Professional Network posted an article about all the technology and science that’s behind a Canon “L” lens.

In several L-series lenses, both UD glass and fluorite lens elements have been combined to produce optimum results. With the continued increase in resolution of digital cameras, demands on lenses are increasing. It is likely, therefore, that UD and fluorite elements will be incorporated into a greater number of lenses, from wide-angle to super-telephoto.

Canon EOS 7D Shutter Mechanism in Extreme Slow Motion (10.000 fps)

This video by Gavin Free of The Slow Mo Guys shows the working of the EOS 7D‘s shutter mechanism, filmed with extreme high frame rates up to 10.000 fps using a Phantom Flex.

It’s also a very good explanation of the rolling shutter technique with examples at different speeds. You can see how the shutter works 400x slower. Pretty impressing.

[via PetaPixel]

Use Your Phone or Tablet as Wireless Remote for your DSLR with CASE Remote

The CASE Remote is a light and small wireless camera controller, that enables you to wirelessly control your DSLR through your mobile devices. Android and iOS are supported. The CASE Remote connects to your DSLR through the USB port. This cool piece of gear is available on Amazon for $129.

The CASE Remote is made by Chinese startup Cheering Tech. The following Canon DSLRs are supported (cameras with an asterisk do not support live view streaming):

EOS 1000D (Kiss F)*
EOS 1100D (Kiss X50)
EOS 1200D (Kiss X70)
EOS 100D (Kiss X7)
EOS 450D (Kiss X2)*
EOS 600D (Kiss X5)
EOS 650D (Kiss X6i)
EOS 700D (Kiss X7i)
EOS 5D Mark Ⅱ
EOS 5D Mark Ⅲ


Features and use cases:

  • Wireless capture and save image to your mobile device
  • Live view and touch focus* to capture image from your device
  • Remotely edit and view camera settings
  • Lighter and smaller, easy to carry
  • Working with IOS and Android system
  • Easy attach by ¼ screw hole and hot shoe
  • GPS embedded photos
  • Share photos and stories with friends
  • Time lapse
  • HDR
  • Focus stacking
  • Wildlife
  • Self portrait
  • Macro
  • Aerial and pole
  • Architectural and real estate


[via PetaPixel]


Canon’s Spot Auto-Focus Explained (CDLC)

Spot Auto-Focus

Short & technical article by Canon DLC about Spot AF, a feature available on high-end Canon DSLRs. Spot AF reduces the size of the AF sampling area at the AF sensor and means that AF can be performed on a more isolated part of a subject or scene. 

Spot AF is available on the EOS 7DEOS 7D Mark IIEOS 5D Mark IIIEOS-1D Mark IV (with some limits)EOS-1D X.