It is a nice product, auto focus really works with it

Fonctionne très bien. Prix plus que correcte

Works as advertised. Good product

This set of extension tubes work great. Generally don't use auto focus when doing macro work but the other advantage is getting the electronic aperture. Be patient when learning how to do macro photography. I like to use these with my Tamron 100-400 mm lens. Do use them on the Tamron 24-70 as well. The body is a Nikon D750. The build quality of the tubes is great. No issues putting them on our taking them off the body or lenses.

The 12mm work flawlessly but the 20 mm and 36 mm would not autofocus they also gave me an indication on my display that I was at f90 and I could not change it nor could i fire my shutter. .. Had i been able to change my f-stop i most likely would have over looked the fact the the autofocus didn't work with two of the extension tubes but they both gave a read out of f90 ...... I was very disappointed with this product I returned it for a full refund

I hoped to transform my 85mm lens in to a 105 macro and it worked but the lens lost the capability to focus at infinity. It's my own fault, I didn't do my homework right. This happens no matter what combination of lenses and extension tubes you use (now I know), so if you want to transform your 35mm in to a walk-around 55 with macro capabilities this is not going to work. The better solution will be a 60 macro. E.g.: Tamron AF 60mm f/2.0.Test system: D5300 + 85mm 1.8G Nikon + 18-35 1.8 Sigma.Everything worked great with both lenses, the camera focused with 1 or 2 rings attached. A little iffy in low light but passable.As the other reviewers underlined the auto focus capabilities will not work with all the rings attached. Manual focus works just fine.For perfect photos a lot of light, a tripod, and a remote, are necessary. I used a Joby GP3 GorillaPod SLR-Zoom with great results. I was able to show my wife the cells from an onion epidermis using all three rings, the Sigma at 35, and some crop in Lightroom.Do not buy the tubes if you do not have long lenses and you want to take pictures of insects, the focus distance becomes too short. The 85 is almost perfect in this regard. With some patience I was able to take pictures of flies, spiders and butterflies. Great results all-around.

This item arrived very well packed. The tubes have all been attached to two Nikon SLRs and fit well with no difficulty with attachment or removal. It pays to take care the first time until you are familiar with the tubes. The alignment dot on the tubes are red not white as with Nikon lenses. Auto-focus and AE appear to work fine but the depth of field is, as with all such tubes, wafer thin. I have yet to put them to extensive use in the field but I am confident these are a quality item and expect no problems

Excellent product. Although not made of metal, it feels heavy and strong. All autofocus and exposure features work fine with Nikon camera D600/610 and Nikon 50mm f/1.4 lens. With all three tubes on, you can get in so close the lens almost touches your subject. Even with only the one large tube on you can get in darn close. With more than just one tube on, you will need to use a tripod and even a remote trigger since the depth of field is so shallow any movement in the camera will throw off your focus. Hey, it's macro photography so focus and depth of field is always touchy and you need to keep your camera perfectly still. Great way to use current lenses to get some awesome macro images without having to buy an expensive macro lens. Yeah, an expensive macro lens over $2,000 is what the pros use to get images that go on the front of National Geo magazine, but for the rest of us these tubes are a fantastic alternative. Buy 'em, you'll have fun with 'em.

I am really into Macro photography, I take much more macro shots than all the other pictures I take put together. I have 2 dedicated macro lenses 90mm and 150mm that are pin sharp and take fantastic pictures (when I get it right) but combined with these tubes they give me the ability to get really close to my subject and have really increased the amount of detail I am getting from my shots. Still testing the product (and will be for some time to come) but up to now delighted with the quality of the product and results I get from it. Just one practical comment, it is not possible to use all of the tubes combined if you use a lens that has the front glass set back into the barrel of the lens as it causes the focal distance to be so short that he focal point would be inside the barrel of the lens. This is not really a fault with the tubes, just a fact of how they work. If your into macro these can really help to get better results if you take the time and care to use them properly.

I can't say I've used these much yet, but I have tested them out with both light and heavy AF and AF-S lenses to see how well they fit together, support weight, "flex", and otherwise perform.With one, two, or all three rings and a relatively small lens that you'd likely use with this camera (such as a AF-S f/1.8 prime) everything feels solid, no flexing, and AF-S (motor in lens) autofocus works fine. No issues noted at all. Everything OK.Placing all three rings and a Nikkor 80-300mm AF-S zoom lens on the camera (probably the heaviest one I have), I can discern some slight flexing between the rings if I don't support the weight of the lens, but I'm not sure it's really enough to have much effect on image quality, and the rings aren't terribly useful with this sort of lens anyway. (I'm unlikely to actually use this lens with them; I just attached it for weight testing.) Autofocus still works just fine on the 80mm-300mm AF-S with all three rings. No electronic failures or other problems noted.I also attached a heavy, fast, glass-laden Nikkor 35mm-70mm AF f/2.8D lens with all three rings. I set the lens to 70mm, hit autofocus, and the autofocus screw drive worked through all three rings (though it was sounding a bit taxed) and the camera was able to autofocus on a subject. As with the 80-300mm there was a tiny bit of flex in the rings, but I'd call it barely noticeable.Though the screw drive seemed to work OK with all three rings and the heavy 35-70mm f/2.8 AF, the mechanical thing that keeps the lens aperture open until shutter release seemed to be having some problems. Several times, the viewfinder went dark (as though it were in DoF preview) and the camera shut itself off probably as some sort of failsafe. To recover I had to switch the camera off and back on again. This happened 5 or 6 times but the problem seems to have stopped after I jiggled the rings and lens around a bit to try to loosen up the linkages.So basically, I feel that these extension tubes are perfectly good for typical applications with AF-S lenses. I'm not sure it's a good idea to use all three rings with a heavy AF lens, though. One or two might be OK, or maybe these things just aren't that reliable with mechanical linkage focus/aperture AF lenses. At the moment this isn't a big issue for me though as I don't really plan to use them with AF lenses, and I have a real macro lens that I use the vast majority of the time.Overall, I'm sure these extension tubes are OK for the money if you're using AF-S lenses. For all I know, most AF lenses might be OK too (maybe this one, the only one I have, is just really heavy or there's something odd about it), but I have much lower confidence in their suitability for AF lenses. Heavy lenses + all three rings may be a problem but I don't know for sure because I haven't actually tested image quality very thoroughly to know if there's any significant tilt introduced by what feels like a slight flexing.I'm not sure how they compare to the official Nikon extension tubes. For all I know it's possible that those have some of the same problems and aren't much better. If in doubt, and you need to use AF lenses, I'd say get the Nikon rings.(Also: Some people have stated that they feel the rings are very poorly constructed. Well, I can't compare because I haven't seen any other ones to compare them to, but keep in mind that the "rattling parts" in the rings are supposed to move freely and are not an indication of things coming apart inside the rings.)

Allows closer focusing, and hence larger close-ups - as promised, but the coupling is sloppy and therefore doesn't hold tightly, i.e. there is some play between the successive extension elements/camera body/lens. I dont know yet if this has a noticeable affect on image quality, but theoretically, if the lens is allowed to sag, the image is hitting the sensor at a bit of an angle, which would affect image quality. In any case its unsettling. I dont understand why the coupling cant be made as tight as a normal lens coupling. I haven't noticed an affect on focus or aperture adjustment, but if you can find a better quality coupling in an extension tube, get it, instead of the Kenko.