05-22-2017, 02:27 PM
Quote:The Nikon TC is +/- 0.03mm measured across the faces of the bayonet at 4 X 90°. I've never noticed anything wrong other than I don't like TCs in general.
A 500 mm Tele doesn't react on a difference of 0.06 mm (that's what ± 0.03 means

Sure you can buy, measure and send back to some extent. If you have enough nerves to spend on this selection...