Perfect fit for my Nikon AF Nikkor 50mm lens. Looked high and low to find this. It is a nice snug fit and will not come off if jostled or stuffed into it's case.

Awesome lens filter!! Put this over my new Nikon Nikkor 200-500mm lens and it’s perfect! Very happy I can protect my new lens for a fraction of the cost!

Part 1 - Minolta MD to Sony NEX adapterTechnically, it slightly overshoots infinity but the issue is easily corrected by dialing back the focus ring just a tad --- Not exact but clearly better than not-at-all.Although very light due to extensive aluminum usage, the build quality and fit-and-finish of the adapter is superb. Connections on the lens and camera mount sides are tight and precise --- absolutely, zero slop. The top of the lens release button is flattened making the lens removal process very easy and comfortable.Other notes:- There are no electrical connections so focus and zoom must be done manually on the lens itself- When mounting the lens, turn the adapter clockwise till you hear a "click"- Tested with a Minolta 85mm f/1.7 Rokkor-X MD lens mounted to a Sony a6000 camera-----------------------Part 2 - Nikon Ai to Sony NEX adapterEdit: Based on my positive experience with the Minolta MD adapter, I also purchased the Nikon Ai adapter later.As with the Minolta MD adapter, the Nikon Ai version focuses beyond infinity a tiny bit. Fortunately, the same solution applies - dial back the focus ring and the horizon will become crystal clear. The build quality is impeccable and the finish is smooth and clean of burrs or machine marks. Connections on both sides are taut and precise with zero play.Additional notes for Nikon Ai adapter:- No electrical connections present so focus and zoom must be done manually on the lens.- Unlike the Minolta MD adapter, mounting the lens for Nikon adapter requires a counter-clockwise turn until you hear the "click" of the locking mechanism- Tested with a Nikon Micro Nikkor 55m f/2.8 Ai-S MF lens mounted to a Sony a6000 camera

NikonD700にAF-S VR-NIKKOR 70-200mmを装着と他にNIKON N AF-S NIKKOR　24-120mm 1:4G EDを入れて、しょっています。ギリギリ押し込んでいます。バッグは大は小を兼ねるを念頭に一考されたい。

Excellent UV filter. I have it on my Nikkor 300mm F4 prime lens. This lens in pin sharp so if anything was going to highlight any issues with the filter it's this lens. All I can say is, I can't see any difference in image quality at all.

This filter fits my Nikkor 18-300 f:3.5-6.3 lens perfectly. Dropped one star because it seems to be a fairly weak polarizer. To be fair though it is advertised as not having a strong effect so it doesn't reduce lens speed any significant amount. Overall a very nice addition to my camera gear.

Easy to use with my Nikkor 18-140mm lens. I love the way the water looks while using this. See the attached manatee picture and notice the shadow on the manatee from the leaf which proves the manatee is a few inches under the water. This is why I love this filter.

Using my NIKKOR 18-140mm lens on a D7000, I get great picture quality, but I fully expect the filter to fall off at some point. as the fit isn't very snug. That being said, it's a $20 filter and the Nikon one is $120, so I can't expect that much.