kenko pro 300 3x teleconverter

[Ekaj]

Hi guys

Anyone have any experience with this teleconverter? I'm thinking about purchasing it, but I can't seem to find much info on it.

Jake

[Tee Why]

I would stay away from a 3 X teleconverter. A teleconverter slows the lens down and 3 X tc would slow the lens by 3 stops. Unless you are using it with a f2.0 lens, you most likely will lose AF.

Teleconverters usually degrade the image quality as well and most feel that 1.4x is ok and 2x TC's are so so IMO, 3X would probably be too much degradation for most.

[Photoskipper]

I will stay away from the 3X too.
Bought the Kenko2X TC couple years ago but very disappointed. Very different from the Canon 2X TC.
The 3X will increase the F stop 3 times, it means the F4 will become F12!!!!! Just too slow for any work.