tq0cr5i Jun 17, 2012 94 22 5,543 44 China Mar 15, 2019 #1 Mar 15, 2019 #1 New firmware for EF400mm F2.8L IS III USM & EF600mm F4L IS III USM is coming? Product Advisoriy has hit the canon.jp but 404 by now. Last edited: Mar 15, 2019
New firmware for EF400mm F2.8L IS III USM & EF600mm F4L IS III USM is coming? Product Advisoriy has hit the canon.jp but 404 by now.
B Bundu Nov 24, 2014 102 45 5,876 South Africa Mar 16, 2019 #2 Mar 16, 2019 #2 I hope it will fix sharpness issue with 2x extender. But then again I think it is the 2x extender that do not play well with the 400 iii. Upvote 0
I hope it will fix sharpness issue with 2x extender. But then again I think it is the 2x extender that do not play well with the 400 iii.
