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Early EF lenses have no lens serial number tag in Exif (300/2.8L IS). Around 2004-2005, two years before AFMA, Canon added a lens serial number that is partially written in hexadecimal (50/1.2L). The way to decode this is not public, but Canon has us...
I have already collected the old firmware updates for Canon D2000/D6000, D30, D60, 1D IIn etc, but is there any reason why they are not downloadable anymore from Canon? 
At f/1.2 or f/1.4 a maze pattern is visible at 1:1 in DPP 4.11.02 (due to green equilibration I suppose). The maze pattern is visible also in Lightroom Classic 8.2.1, RawTherapee (AMaZE without green equilibration correction), darktable (AMaZE). What...
Anybody who knows how to easy fix this? I found this, but the main dial on a 6d is harder http://martybugs.net/blog/blog.cgi/gear/bodies/Fixing-Slipping-Main-Dial-On-A-Canon-DSLR.html
Maybe it is fixed in the latest firmware for 6D, but I am using magic lantern and still using Firmware 1.1.3. Here is the deal: With EOS Remote I can´t use the autofocus if I don´t set the button AF-ON on the camera to use AF. http://photography-on-t...