I'd like to buy a AF teleconverter for my Nikon and don't have a clue which one to choose. I would use it primarily for moon shooting in conjunction with a Nikkor 80-200mm f/2.8D ED or a Nikkor 75-300mm f/4-5.6 lens. Apparently it's not a matter of multiplication factor only but perhaps of autofocus speed too? For instance why the TC 14-E and TC 17-E are comparable in price? Should I go for one of those or save up and go for the TC 20-E III? Finally, can the AF version be used for manual focusing too? Thanks
Len is correct. Unless you have the discontinued 80-200mm f/2.8D ED IF AF-S version of the 80-200mm, the Nikon TC's will not even mount on either lens.
As Len wrote above, the Kenko Pro 300 Series TC's support AF on Nikkor AF lenses with a screwdriver type AF mechanism. The latest versions will also include the correct focal length in the Exif data. Good Luck and Enjoy your Nikons!
You shouldn't have any problem using the AF 80-200mm plus 1.4 TC for action photos. You're only reducing the aperture from f2.8 to f4. The AF speed is still pretty quick on your D700. It's more of a challenge with the 70-300mm lens. But try it, especially in good light.
I guess TC is not recommendable for action photography
When you use a 1.4x teleconverter, one of the costs you pay is the "loss" of one f/stop of maximum aperture. This makes it harder to focus (either for you or the camera's AF system). If you were already shooting wide-open to freeze action, it also means that you'll need to keep the shutter open twice as long.
For us amateurs, getting closer to the action is not always an option, and fast long telephoto lenses are large, heavy, and expensive. So while a teleconverter may not be an ideal solution, using one is often a reasonable way to get some extra reach without breaking the bank or your back.
One of the biggest mistakes a photographer can make is to look at the real world and cling to the vain hope that next time his film will somehow bear a closer resemblance to it. - Galen Rowell
>I guess TC is not recommendable for action photography
The brighter the ambient light level the better a TC will work, even for action photography. The lower the ambient light level, the slower the AF speed will be. In other words, if you are shooting sports in daylight conditions, you shouldn't have any problems with AF speed. Night games under the lights, the AF speed and the shutter speed will depend on how good the lighting system is. Good Luck and Enjoy your Nikons!
Brian has the (discontinued) AF-S version of the 80-200mm f/2.8 Nikkor, with its own AF motor. We think from your original post that you have the AF-D version with "screwdriver" AF. Nikon's own TC-xxE range will only fit certain longer "pro" AF-S Nikkors, like Brian's lens. As explained, you would need the Kenko Pro TC for your lens if it is indeed an AF-D version.
I'd encourage you to rent for this purpose. Once you get your shot, there's no variance, since the moon basically doesn't change. There is not really much possibility of getting another, different shot. If you're getting a TC solely for this purpose, that shot is going to cost your $400. And it won't be any different than the shot that all the rest of us got.
_____ Brian... a bicoastal Nikonian and Team Member
My gallery is online. Comments and critique welcomed any time!
The TC - 200mm combination is not going to give you a very large image. In fact, it requires 2500mm focal lengeth to deliver an image 25mm in diameter, of the Moon, which is only about 30 arc-minutes in diameter. Therefore, even a 2.0 TC, which will change your f2.8 lens into an f5.6 at 400mm, will give you in image about 4 mm in diameter. That's pretty small for the money. Sorry.