I found that the original Canon LP-6 with the correct packaging etc purchased on eBay is a fake, but it still works fine - one unexpected good use of the update!
I tried the 70-200mm f/4 L IS with the Canon 2x TC III. The focussing was fine but the quality is not as good as the 100-400mm at 400mm.
« Last Edit: April 30, 2013, 01:58:24 PM by AlanF »
5D III, 70D, Powershot SX50, 300/2.8 II, 1.4xTC III, 2xTC III, 70-200/4 IS, 24-105, 15-85, Sigma 10-20, Tamron 150-600, EOS-M, 18-55, f/2 22.