Canon v's Kenko Pro 300 1.4 x Teleconverters
I'm looking at buying a 1.4 X TC to mount onto my Canon EF 500mm f4 IS USM, but not sure my best option yet.
From what I've read the Canon 1.4 x TC has very limited auto focus on the 500 f4, which may be a pain for my dying eyesight, manual focus is pretty hit and miss for me.....not sure if this applies to the Kenko Pro 300 1.4 x TC. I would like to think the Canon TC delivers better image quality optically, but not so sure that it does to be honest, and is double the price of the Kenko Pro 300 TC's.
I have been using the Kenko Pro 300 series 1.4 X TC and 2 x TC on my 300 f2.8 with excellent results and they enable full auto focus function, metering etc. The only problem I have found with the Kenko is the occassional hiccup with communication between lens and camera contacts, a simple jiggle of the connections usually enables it. The Kenko's worked fine, no softening of images with the 1.4 x TC at all, although some increae in CA, and did like the fact it retained full functionality. The Canon TC appeals though as it should have no trouble communicating with camera body and/or 500 f4, except possible loss of full AF...and the price is questionable in relation to value for money.
Be curious to hear peoples thoughts on which choice is better overall
Repost at will......Cheers from Colin