I'm been thinking about x2 TC III for my 400mm f2.8 IS II. It would be nice to have 800mm range for wildlife. I'm little concern about IQ loss
Don´t be. It is still great. Take it to a store and try it out. You will be very pleased. The attached image is a 100% crop
5DIII, 1/1000s, f5.6, ISO400, handheld.
« Last Edit: May 06, 2014, 02:33:24 PM by Eldar »
5DIII, 1DX, 8-15/4L, 16-35 f4L IS, 24-70/2.8L II, 70-200/2.8L IS II, 70-300/4-5.6L IS, 200-400/4L IS 1.4x, Zeiss 15/2.8, 17/4L TS-E, Zeiss 21/2.8, 24/3.5L TS-E II, Sigma 35/1.4 Art, Zeiss Otus 55/1.4, 85/1.2L II, 100/2.8L IS Macro, Zeiss 135/2, 600/4L IS II