Autofocusing at f/8 with Select Third-Party Extenders
Many people were unhappy that the Canon EOS 1D X could not auotofocus at maximum apertures of f/8 like previous 1-series bodies. We received a few reports that the Canon EOS 1D X can autofocus at f/8 using the Kenko Teleplus PRO 300 DGX 1.4x AF Teleconverter (Aurthur Morris posted on the subject recently) and we decided to run a few small tests to confirm.
We tested a "blue dot" (current) version of the 1.4x Kenko Extender with the Canon EF 400mm f/5.6 L USM Lens using center focus and various camera bodies focused on static subjects. Here are our subjective results:
Canon EOS 1D X: AF worked and was fast with almost no hunting. However, metering was consistently off by +1 stop.
Please note that we did not test with moving subjects and did not test image quality; results may vary depending on your situation. Other third-party extenders may work similarly.
Update: The EOS 1D X was originally tested with version 1.0.2 firmware. I updated the firmware version 1.0.6 and retested. Performance remains as reported above. Also interesting is that all 1D X focus points remain active (though periphery AF point use results in more hunting).
DateTime: 9/13/2012 7:20:03 AM CT Posted By: Bryan
Wednesday, September 12, 2012
B&H Will Be Closing in Observance of the Rosh Hashanah Holiday
The B&H SuperStore will close at 1:00PM EDT on Sunday, September 16, in observance of Rosh Hashanah and will reopen on Wednesday, September 19 at 9:00AM EDT.
All Regular Shipping orders placed before Sunday September 16, at 7:00AM EDT and Rush Shipping orders placed before 11:00AM EDT will be processed normally. Orders placed after the above times will be processed when we reopen.
Online ordering will be unavailable from Sunday, September 16, at 7:00PM EDT through Tuesday, September 18 at 8:15 PM EDT.
We apologize for the inconvenience and appreciate your patronage.
Place your B&H order now to insure prompt delivery.
DateTime: 9/12/2012 10:07:20 AM CT Posted By: Sean
Canon EOS 7D Firmware Version 2.0.3 Released
Canon has made EOS 7D firmware version 2.0.3 available for download.
Firmware Version 2.0.3 incorporates the following fixes.
Fixes a phenomenon in which the camera stops working when the auto power off setting takes effect.
Fixes a phenomenon in which the maximum number of images that can be captured in a burst may be less than the actual number displayed in the viewfinder.
Corrects some errors in the message displayed on the LCD screen when saving RAW images developed in the camera (these errors do not appear in the Japanese and Korean language displays.)
The fixes listed above are corrections for the phenomena experienced with firmware version 2.0.0. These phenomena will not occur in firmware version 1.2.5 or before.
Updating the camera’s firmware to version 2.0.0 / 2.0.3 from version 1.2.5 or before, will incorporate many new functions into the camera. For the details of these new functions, please see the Version 2.0.0 improvements in the history of past firmware updates.
The new Firmware Version 2.0.3 can be downloaded by clicking here.