This adapter works well, and has opened up a range of new lenses for my micro four thirds camera. The only knock I have against it is the aperture adjustment ring. Why does it have one? I prefer the one on the actual lense because it says what f stop I am using. Also, when removing the lens from the adapter, it is hard to grip and I am tempted to turn using the aperture ring. Which I don't think is good. It almost feels as though you would have 1 ring per lens, because removing the whole assembly is going to be easier that removing just the lens.
04/10/2017
Worth its price, metal, good workmanship and fitty. The inner surface of the black paint semi-glossy, in the future should have a matte black. I recommend the product.
07/08/2017
Extremely well engineered converter with good heft, a solid feel and a pleasing to use aperture ring. I can now use my old Nikkor lenses on my M43 camera, so I'm happy. My only slight criticism is it didn't fit on my camera initially. Close inspection revealed that the two tension springs were too strong but after a little fine tuning it now fits perfectly. I'd recommend this to anyone wanting to use their Nikon lenses.
05/04/2017
Surpassed expectations.I bought this without much real belief it would work. Just obtained a tamron 150-600 G2 lens for my older Nikon D300s and started to wonder if I could use the lens with my Olympus Pen-F which has much higher pixel rating and a crop factor of x2. It also has inbody IS.This works absolutely brilliantly! Obviously needs manual focussing which is assisted by the Peak focus tech in the olympus but has now given me an equivalent of 1200mm reach.Very well made and an absolutely snug fit to both the lens and the camera body.
22/03/2017
I am extremely impressed with the quality of these adapters. I have 5 now, and while they might be a couple of pound more expensive than some others found on ebay, when you hold them in your hand, you know you're getting good value. They are all precision machined metal, with high quality finishes, and the control rings on adapters that have them, have a very satisfying action to them.For dumb adapters (ones without electrical contacts for modern lenses), getting anything more expensive than these adapters is a waste of money. They do everything you need and couldn't possibly feel more sturdy or satisfying to use in my opinion.Note: if you want an adapter for a nikon ai lens, the nikon G adapter also works, the aperture ring just doesn't do anything. I use the one adapter for both ai and g lenses.
08/02/2017
Have 4 of these k and f concept adapters for nikon lens and the following camera ends ... sony e, m43/mft and m42 screw. They all seem well made and are a good snug fit. No looseness. Excellent.
23/01/2017
Fast delivery of an excellent product - works well with telephoto and wide angle lens on my Panasonic G80.Firm fit - bargain.
26/11/2016
I've been using this for a month now. The fit to a GH4 is very good. I knew in advance that the automatic features on my lenses would be disabled but that said I have used DX, G, D, and AI(S) lenses with this adapter and they all work. Obviously the crop factor for the DX lenses is less noticeable, but noticeable none the less. My go to lenses with this are my AI-S lenses 26, 50 and 105. That leaves a hole at the wide end and I think a M43 12 or 14 prime should fill that gap. To be blunt the speed boosters with great lenses are less impressive than good primes. The throw on the aperture control is tiny, but once you are used to it, no problem. I found not have the aperture feedback scary at first, but now it's one of those challenges that focuses your thinking. On the GH4 you have to set the menu to "Shot With No Lens". I also disabled the shutter to be safe (set to electronic shutter). For lens hacking it's a little awkward (the Canon mount is better for this) but it is doable. This adapter is a very good deal.
19/11/2016
I am using this to attach my Nikon F lenses to my GX7 body. The adapter is well made and attaches to both camera and lenses securely. It seems to give better results with longer focal length lenses and with peak focusing switched on it is easy enough to get focus. It does have a metal ring to change F stops but I find leaving it wide open works best for me.
28/09/2016