[0.605 lb] Unfortunately I first purchased the simpler version of this adapter from Metabones first. This model is identical looking to the other. Both are well made with metal male and female mounts, as well as all metal construction. The fit-up on both and at each end is snug and confidence inspiring. But this unit is the one to get as it allows the use of newer lenses which do not have f-stop rings as well as lenses that have f-stop rings. This model has an f-stop mechanism built in, allowing the f-stop to be changed via a numbered click-stop system. Without this additional functionality lenses without f-stop rings can be mounted but they will constantly be fully stopped down, making them essentially useless. For a bit more money the Metabones Nikon G Lens to Micro Four Thirds Lens Mount Adapter is a better choice than the less expensive Metabones Nikon F Lens to Micro Four Thirds Camera T Adapter II, because then more Nikon lenses will work with you M4/3 camea.

[0.605 lb] great product my old adapter broke I call B&H Photo ask them but I could use to replace my old gear they probably told me about this I ordered it got it in three days in love it it even helps with shake on longer lenses. price is pretty good as well I would definitely recommend this if you have an MTF and like to use Nikon lenses

[0.605 lb] I wanted this to mount my Rokinon Cine lenses to my bmpcc4k since they didn't work out with a aperture controlled speedbooster.

[0.605 lb] I previously bought the Speedbooster 0.71 adapter but I wanted one that doubled the focal length and I am happy with the quality and price.

[0.605 lb] Well built, zero wiggle at either end, aperture control well damped.

Work's fine with my Nikon AF-S lens (aperture and manual focus), but does not work with my Nikon AF-P (manual focus) lens. I contacted metabones to find out the reason but no response for 4 weeks now, they say on their website they wont respond to questions which they have on their faq, but couldn't find anywhere indicating non compatibility with Nikon AF-P (manual focus). After speaking with bandhphoto they confirmed the new af-p lens don't work with this adapter, so I asked BandHPhoto to update their description so other customer could be made aware of this but doesn't look like they have, hence why im writing this review.

Not a deal breaker, i only have 1 af-p lens, everything else is af-s.

[0.605 lb] This allows me to use my collection of old Nikon manual lenses as well as my new Nikon G lenses on my Panasonic GH4. My auto lenses however are reduced to manual operation only. Not so great for fast action photos or video. Works great for a video interview or something that doesn't move in and out of focus.The idea is to use the lenses at wide open when possible. With the GH4 my nikon 70 to 200 mm 2.8 doubles the focal length effectively. One problem with the GH4 is the tripod mount doesn't clear the panasonic YAHG attachment, but it can be easily removed.

[0.605 lb] My specific use for this Metabones adapter is wildflower photography in full manual mode and it works like a charm! In fact, I'd say the combination of Metabones adapter and macro lens is more convenient to use than the macro lens by itself! I use the Metabones to adapt a Nikon-mount, Tamron 90mm macro lens to a Panasonic Lumix G7 camera. (I also have a Nikon D7100 camera, but I use the G7 for backpacking because of its lighter weight and for wildflower photography because of the swivel LCD monitor). Here are the positive aspects of the Metabones adapter: (1) The Metabones adapter fits snuggly enough that there is no play between the lens and the camera. (2) The tripod mount on the adapter is, to my surprise, a huge plus because, mounted there, the lens and camera are balanced much better than if the camera itself were mounted directly on the tripod. (3) Best of all, as one rotates the aperture ring on the adapter, the aperture of the lens opens and closes along with it and the aperture remains where it is set. This means that one can easily rotate the aperture ring until one finds the depth of field that looks best and then that look is held in place. On most cameras, the depth of field preview button is inconvenient to use because the lens is only stopped down for as long as the preview button is physically held down. CAUTION: Be sure to focus with the lens wide open and then stop down to the depth of field one wants. (4) One side benefit is that, on a micro four thirds camera body, compared to my D7100 crop sensor camera, my macro lens gains significant working space between the lens and subject. Note that when using the Metabones adapter, autofocus capability is lost. However, one can somewhat awkwardly utilize the camera's light meter by setting the shutter speed on the camera and then rotating the Metabones aperture ring until the light meter indicates the correct exposure has been achieved.

[0.605 lb] I purchased the adapter to use a Tamron 150-600 lens on my Olympus EM-1. The adapter fits camera and lens securely and allows changing aperture settings. I'm satisfied with the adapter.

[0.605 lb] Great construction and the f stop setting for Nikon G lenses seems stot on. Especially like the built in tripod quick release foot. Recommended