Help Exacting Firmware Update for Canon 5D3

IGregory

macrumors 6502a
Original poster
Aug 5, 2012
669
5
Gentlemen/Ladies:

I am attempting to update the firmware on my Canon 5D Mark III. The update file is eos5d3-v1.2.1-mac. I've downloaded the file unto my rMBP 15" (Mid 2012). It is sitting on the desktop. When I click the file to open it, it asks for the application I wish to use to open it. It provides a choice between search the APP Store or choose an application.

Does anyone know how I would go about finding the application to open the exec file. Thanks
 

NeGRit0

macrumors 6502a
Apr 19, 2008
940
181
Las Vegas, Nv
Mac won't open .exe files. You need a .dmg equivalent. I think you might have downloaded the Windows version by mistake if you have the .exe

When on this page make sure you select Mac OSX, and the your specific version.
 

IGregory

macrumors 6502a
Original poster
Aug 5, 2012
669
5
Mac won't open .exe files. You need a .dmg equivalent. I think you might have downloaded the Windows version by mistake if you have the .exe

When on this page make sure you select Mac OSX, and the your specific version.
I'm an old Windows guy. For some reason exe is etched in my mind. Anyway, when I download the file the name is eos5d3-v121-mac.dmg. I click the file to open, and it brings me to a folder 5D300121.FIR. I click this file to open that is when it asks for the application to open it. Any suggestions.
 

NeGRit0

macrumors 6502a
Apr 19, 2008
940
181
Las Vegas, Nv
I believe you just place the .fir file on the root of a memory card, and just insert it into the device. Then power it on, and click on the firmware version in the menu, and it should prompt you to update.
 

ocabj

macrumors 6502a
Jul 2, 2009
545
183
When you unarchive the dmg, there's a directory named "update-procedure-pdf" with directions on how to upgrade the firmware in five different languages.
 

Outrigger

macrumors 68000
Dec 22, 2008
1,759
92
I believe you just place the .fir file on the root of a memory card, and just insert it into the device. Then power it on, and click on the firmware version in the menu, and it should prompt you to update.
that is correct. you don't actually execute the file with a program like you would a regular app on the computer.
 

IGregory

macrumors 6502a
Original poster
Aug 5, 2012
669
5
Thank you gentleman finally success. My problem was I had managed to lock the memory card and that was the reason I could not load the file onto the card. I stopped by a nearby Apple Store and one of the salespeople figured it out right away.
 

NeGRit0

macrumors 6502a
Apr 19, 2008
940
181
Las Vegas, Nv
Thank you gentleman finally success. My problem was I had managed to lock the memory card and that was the reason I could not load the file onto the card. I stopped by a nearby Apple Store and one of the salespeople figured it out right away.
Good to hear it all worked out! :cool:
 

MCAsan

macrumors 601
Jul 9, 2012
4,543
414
Atlanta
sounds like you were using an SD card. Indeed 5DIII and IDX support both card types. If you want max speed of the buffer writing to a memory card, you want a UDMA 7 compliant 800x or 1000x CF card. This lets you shoot high speed (sports or wildlife), fill the buffer, and have a minimum delay while the buffer writes to the CF card before you fire off another round. If you are not doing lots of high speed shooting, the SD limitation may never be an issue.


BTW, the 1.2.1 firmware works well at enabling 5DIII to do AF on the center point at F8. Previously F5.6 was smallest aperture to get AF to work. So now I can put the 1.4TC on the 100-400 and get 560mm with AF on center point. That works well enough for me shooting wildlife.