Does the EOS 5D Mark III have a light-leaking problem?

This is an issue that is heavily discusses in forums and on the web. People are reporting that their 5D Mark III’s are leaking light through the LCD panel on the top of the camera body. The leak seems to affect metering. There is a way to test if your body has the problem: put the cap on the body and cover the viewfinder, then put the cam in “P” mode at ISO 800 and turn on the LCD backlight. If the leak is present, the shutter speed will change after having turned on the backlight. Unfortunately there is more. The same issue seems to show up if a flashlight is firing on top of the LCD panel. And finally: there is also some people reporting that direct sunlight or strong light coming from top to down is also affecting the metering. I have two videos explaining the issue.

The test procedure summarized:

  • Remove lens and place the body cap on the camera
  • Apply the viewfinder cover on the viewfinder (to block any light from entering the camera)
  • Set ISO to 800 and camera mode to “P” (should set a shutter speed of approx. 10 sec)
  • Either turn on a flashlight near the top LCD panel or turn on the backlight for the top LCD panel
  • If light-leaking is present, the shutter speed will change to 5-8 seconds

Here the videos…

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EOS 5D Mark III Quality Issue Announcement by Canon UK

This was published on Canon UK’s site:

Issue

This issue relates to customers who are using the Digital Photo Professional (DPP ver.3.11.10) RAW image processing software with the Canon EOS 5D Mark III digital camera.

We have identified an issue that prevents users of the Canon EOS 5D Mark III from processing their RAW format images when using Digital Photo Professional Version 3.11.10, the RAW image development software that is bundled with the EOS 5D Mark III.

Answer :

We will shortly release an update for the Digital Photo Professional Version 3.11.10 for users to download which will address this issue. The update will be released on the website in mid-April.

To learn more about this issue check forums.

Deal: Canon EOS 7D with EF 24-105mm f/4L IS USM, and lots of accessories for $2,599.96

This is a great deal by Adorama starting today, April 5 at 8pm EST. Use coupon code S0401201. The offer expires 4/30/2012, but usually these kits sold out pretty quick. If you are seriously looking for a good EOS 7D deal this may be your opportunity – click here to check this Canon deal. The $2,999.96 $2,599.96 (after having applied the coupon code) kit comes with an EF 24-105 F/4L IS USM lens, and much more. The full kit includes:

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Hacked EOS 5D Mark III: New footage!

WARNING: Don’t modify your camera without the necessary technical knowledge. Opening the camera voids warranty and may irreparably damage it.

We reported about this hack by James Miller a few days ago. James Miller opened his brand new EOS 5D Mark III and removed the Optical Low-Pass Filter (aka Anti-Aliasing filter) from the sensor. It seems that the filter is really blurring the image, since the pics shot without the filter are much more detailed.

Now, Miller published new material shot with his hacked EOS 5D Mark III. Removing the OLPF makes a visible difference, while moire seems not to be worsened at all and aliasing is under control. See and judge for yourself…

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