TC for Nikon 70-210 f4 ?
I was able to purchase a secondhand Nikon 70-210 f4 a while ago to use on my D7000. Great lens in my opinion. But I'd like to add some more mm's as I'm planning to shoot some wildlife on an upcoming trip. So I was wondering if there are any TC's out there that would work on my 70-210. I think a 1.4x would be enough, so as not to loose too much light. The only TC's I've found so far are the older Nikon ones, but they render the lens to manual focus only, while I'd prefer to keep AF. Any ideas?