Excerpt: Works flawlessly with nikon lenses as I do not have any others to test it . I am using it with a 70-200mm f4.0 nikon lens for birding purposes. It becomes a 140-400mm F8 . I will also be using it with a 300mm lens whine arrives.
Excerpt: I purchased the TC20 to use with a Nikon 80-400 f4-f5.6 lens. Unfortunately at 400 mm the lens is f5.6. f5.6 plus 2 stops is beyond the range that my D810 would autofocus. The TC20 worked fine in manual mode but I was trying to capture flying birds and autofocus was a feature I strongly desired.
Excerpt: I brought this to Kenya, Africa for two reasons, traveling with less weight from lenses I may not use, and saved me big bucks buying a 500 or 600mm. Your service is excellent. I can't believe how easy ordering was. I received it even before I expected it to arrive. You rock B&H!
Excerpt: As usual B&H provided excellent service in a timely manner. I use this 2X on my 80-200 lens. I have no complaints about the use of this product and would recommend it to anyone like me who can't fork out $ for a 400mm f 2.8 lens.
Excerpt: I photograph wild birds and it is difficult to get a really close shot as they are very skittish. I bought the TC-20E 2X Teleconverter to go with my Nikon camera and 300mm 2.8 lens. The combination gets me up close and personal and the details are fantastic.
Pros: Durable, Easy To Use, Lightweight, Reliable, Tack sharp