I am new to this forum and still learning my way around.
I do a lot of shooting of birds and birds in flight using the d4 plus my Nikon 500mm f4.0 vrII lens. To get more reach I add a tc 1.4EII or my tc 1.7EII to give me either 700mm or 850mm. I have to adjust the af fine tuning on the d4 to a +15 using the tc 1.4 and no need for af fine tuning with the tc 1.7. The 1.4 converter gives me more consistant accurate af than the 1.7 converter. I think maybe its the lighting on the subject that makes the 1.7 converter less consistant? Has anyone experienced the same thing?
My main question is anyone using the tc 2.0EIII with the Nikon 500 lens with what kind of results for focus accuracy and focus quickness? I always seem to need more reach for static birds especially so that I don't have to crop so much. How is the tc 2.0EIII working out for those who are using it?
I am excited to learn the rope on this forum for photographic information on equipment and images.
In practice, AF has always been possible at f/8, in good light with a clear target - only Sigma lenses and TC's actively disable it.
The more recent Nikons like the D4 do officially support AF with at least some of the AF points at f/8, so that combination should work. I've not used it myself, so cannot offer any real-life feedback, but I'd expect AF to be a bit slower and less positive than with the lens alone.
I use the TC-20eIII with a 400/f2.8 AFS-II and haven't bothered to mess with AF Fine Tune. I've been able to do stuff like read the inspection sticker on a race car at 260 feet, so I figure there's no need to touch the AF Fine Tune. It's definitely preferable to stop down one stop (eg effective f/8) to get the best results, but even wide open the pair works very well. I don't have a D4 though - presumably it works better than my D3.
_____ Brian... a bicoastal Nikonian and Team Member
My gallery is online. Comments and critique welcomed any time!
Thanks for all your input. It seems the tc 2.0EIII works good on the Nikon 400mm f2.8 lens, still curious how it would work on the Nikon 500mm f4.0 lens. With the 2.0 converter mounted on the 400mm lens the effective wide open f stop is 5.6 where if mounted on the 500mm lens it is 8.0. I am thinking the reduction in light coming into the camera may effect the quickness and accuracy of the auto focus? I just don't want to buy the tc 2.0EIII if it is not a good tool when mounted on the Nikon 500mm f4.0 vrII lens.
Thanks Dave for the reference to shooting f4 long lenses with teleconverters. Lots of info. from people who use converters in shooting birds.
I have lots of well focused images using my 500mm Nikon lens when attaching the tc 1.4EII, but as I explained in the opening comments that the tc 1.7EII is not as consistant. It does seem like in close up shots the tc 1.7EII in good light performs well. On more distant shots it seems to be more of a hit and miss depending on I think contrast of the light.
Anyway thanks for the information Dave, glad I joined nikonians, better than some of the other forums.