Comments from online sites:
1. The AT-X 100 PRO D is a new macro lens capable of life-sized (1:1) reproduction at 11.8 in. (30 cm).
2. Tokina AT-X M100 PRO D for Nikon mount conforms to the specifications of “Ai AF-D” Nikon lenses.
3. CORRECT: When using with a Nikon DSLR camera or a film camera with CPU system, it is necessary to set the aperture ring to the minimum aperture value (F32). To prevent accidental movements of the aperture ring from the minimum aperture value the ring can be locked in place with the small slide switch adjacent to the ring. (To release the lock, slide the lever to the opposite side.) When setting the aperture value to F32 and then changing it by the dial on the camera, the aperture value displayed in the viewfinder will be other than F32. At this time, the diaphragm blades do not move but will operate according to the aperture value displayed when shuttering. When set on other than the minimum aperture value (F32), the “FEE” error message flashes and the shutter cannot be released.
4. WRONG: This lens will work with the D810 right out of the box.
5. WRONG: Nah just mount it [on D810] and your off to the races 🙂
6. WRONG: [On D810] You shouldn’t have any problems with this combination, as the Tokina 100 macro is a full frame lens.
7. [Rockwell] Tokina calls this the Tokina AT-X PRO 100mm F2.8 D Macro. AT-X: Advanced Technology-seX. PRO: Tokina’s designation for its lenses with its brilliant AF-MF focus clutch. D: The lens tells the camera the distance to the subject, which helps the exposure meter, especially with on-camera flash…. Perfect for use on FX digital, DX digital and 35mm both as a dedicated macro lens, and as a general-purpose short, fast tele for everything from sports to portraits and landscapes…. This Tokina 100mm f/2.8 Macro is a fantastic lens. It’s optical performance is as good or better than the best from Nikon and Canon
8. CORRECT: Once you mount it on your D810 you should go to your Menu button and to the SETUP MENU go to AF fine-tune to setup you new lens for your camera so to optimize the most out of your new lens. [Click here for detailed instructions.]
9. CORRECT: I use a D750, but probably same for D810, just remember to keep aperture set on minimum (f/32) or you’ll get error message and cannot trigger your shutter.
10. I use this lens handheld all the time on both DX and FX camera bodies, mostly for macro work, but it’s also a great portrait lens. One of my favorite lenses.
11. Theoretically you could shoot as slow as 1/125 without visible motion blur. However, I’d shoot at 1/250 just to be sure. If you’re using flash in a studio situation, this won’t be a problem.
12. [Nikon 800e] You shouldn’t have any problems with this combination.
13. Using a Nikon D750, the aperture will open to f/2.8 with the lens fully retracted, if you extend the lens, the aperture size decreases.
14. Nikon cameras display the effective f stop. With macro lenses, the effective f stop increases when you focus closely. I’m assuming this is what you’re seeing and not a defect with the lens. Focus at something far away and the lens should open up to f/2.8.
15. It will mount on the D5100 but will not autofocus, as it does not have its own autofocus motor. You will have to focus it yourself. However, it will work with the camera’s light meter.
16. CORRECT: [On the D5200] You needs to rotate the Manual aperture to f/32 shows in green color. (2) Just remember when you get this lens to lock it on f/32 otherwise your camera [D5300] won’t take a photo unless you change setting inside the camera.
17. [On the D5200] It should work with all modern Nikon cameras, both DX and FX. By pulling back on the focus ring. you instantly switch to manual focus without touching the camera… a real convenience for macro photography. The lens is razor sharp at f2.8. I have not used the Nikkor 85 mm. Hint: use the (+) button on the camera in Live View mode to exaggerate the magnification. You will get much more focussed photos in the final shot.
18. The Tokina 100mm lens will work with your Nikon D5200 but will NOT autofocus. You will need a lens with the AF motor in the lens itself (as in AF-S lenses by Nikon). If you are using the lens mostly for close-up work though, you will most likely use manual focus most of the time anyway. The Tokina will auto-focus only on cameras with an internal focusing motor. By the way – This is a GREAT lens!
19. I can’t answer which one you should buy, but I can say I have this lens on my D5100 and very much like it. It is not AF on the D5xxx. It is my experience that shooting macro is best done manual focus, so I don’t see that as a problem. Very happy with this lens, and occasionally use it for non-macro and find manually focusing to be quite acceptable. In my opinion, very good value for the money.
20. The aperture is not affected by crop sensor. I use this lens on both my D7200 and D750 at f/2.8. To see the actual effect of DX and FX bodies on the effective focal length, as noted earlier, check-out the NIKKOR Lens Simulator on the Nikon website.
21. I have also used this lens for macro videos and it’s worked flawlessly for that. Of course video doesn’t show off the true sharpness of the lens, since video is of a considerably smaller resolution than pictures. But if macro videography is something you’re interested in, this is a superb lens to use. It was this lens that GOT me interested in macro videography.