I moved to about twice the distance so the centre circle were only partly resolvable. These are 100% crops, but the pixels of the shot without TC were increased by 1.4x to give the same "resolution" as with the TC. JUsge for yourself. Is it worth losing a stop and spoiling AF by adding the TC? (My lens is sharpest bare at f/11, similar to as found by SLRgear.
Top = bare lens x 1.4n using PhotoShop
Bottom = lens + 1.4xTC
OK. So basically upping the resolution in photoshop will result in almost a same image as using the TC
Just out of curiosity AlanF, how does the center resolve with the 300mm f/2.8 + 2x TC? The 300mm f/2.8 is what I plan to get next.
Should I pull trigger on this baby before you
LOL ... Probably you will. Mine is scheduled for Feb / Mar.
1DX, 5D3, 600D, RX100
16-35L, 24-70L II, 70-200L II, 100-400L II, 50L, 85L II, 135L, 17TSE, 24TSE, 40, 100 macro, 18-55 II, 55-250 II, 1.4x III, 2x III, 600RT x 4
When it comes to gear, it is better to vote with your wallet. Bitching on online forums like a lunatic doesn't get you anywhere!