Nikon Br-3 Adapter Ring

It's a pretty simple device and not entirely necessary but since I'm paranoid about damaging the back lens of my 50mm lens while reversing it with the BR-2a to do macro photography, I think it's worth using. This adaptor is a solid hunk of metal and seems to be very cleanly machined. Fits on the F-mount of my lens and lets me screw the UV filter on to keep me from directly bumping the rear element when I'm getting "up close and personal" with my subjects. The other reviewer mentioned having a problem with a third party filter threading onto this adaptor. Like they said not all threads are created equal but they're supposed to be. I think it has to do with the quality of the threads on the filter. I had no problem screwing a decades old Kalimar UV filter on this adaptor but have had problems with filter threads in other applications unrelated to the BR-3 adaptor. I have a set of cheap "close-up" filters that I was using for Macro before getting the BR-2a and although they came together as a set, I have a hard time getting them to screw together or to my lens. So like the other reviewer said, your mileage may vary but if you have a problem getting a filter on this adaptor I would tend to blame the filter and not this adaptor.

This feels cheap, and the design of the lens release lever is horrible. It sticks out VERY prominently, and bends VERY easily. It almost requires three hands to hold the lens/camera, this adapter ring, and actuate the release lever.Get the Photodiox adapter ring instead. It feels like much better quality, and the release lever of the Photodiox is trivial to operate while also holding the camera, AND the lever is very low profile. The aperture open/lock feature is great.The Nikon adapter ring is 3-4 mm shorter than the Photodiox, not that that matters (this is on the wrong end of the lens for it to matter optically.Skip this. Get the Photodiox. Trust me, you don't have to thank me.

Works as it should. Not much to this. Not much to say about this product. Its a simple metal ring that does what it is suppose to Thanks Nikon

excelent, nikon quality

Nikon qualityEasy mounting

I just bought one of these BR-3s recently, and I agree with what's been said earlier about its build quality. It's lightweight, but well made. I've come to expect this level of quality when it comes to items that Nikon has designed for the pro or serious amateur.I just wanted to weigh in also on the matter of the BR-3's thread pitch. This is not the first time I've read of B+W filters having a slightly different thread pitch than "standard," and being just different enough to cause fitment issues. So, I dug out a stack of 52mm filters I had within easy reach -- Canon, Hoya, and Toyo, all decent brands, especially the first two. They all threaded onto my BR-3 without a problem. I have some Nikon 52mm filters around here somewhere, but I figure if Canon and Hoya fit, so will Nikon. So blame the B+W, not the BR-3.

I bought this little item to protect the back lens element for when I want to take reverse-lens macro photos and it works just as it's supposed to. Having this is definitely worth it's price considering it protects your lens from nature's elements when going outdoors, not to mention water droplets being a major subject of macro photography. Note, however, not all 52mm threads are made equal; my B+W UV filter won't fit, but my Nikon polarizer does. Maybe it only accepts Nikon filters? I doubt it, but I don't have any other brands to try it with.

Nikon Br-3 Adapter Ring  This is almost an essential piece of kit if you reverse a lens for macro work. It fits onto any Nikon lens and provides rudimentary lens protection to the mechanism but also allows you to fit a filter to stop the ingress of dust; it has a 52mm filter thread. Usual Nikon high quality. Nikon Br-3 Adapter Ring

Very ideal and safe adapter for reverse mounted lenses.

nikonのFマウント用の接写のリバースアダプター BR-2Aと対になって使うリングです.リバースアダプターで反対につけてむき出しになったレンズを保護するために,フィルターを付けるのに使います.接写に絶対に必要 ではありませんが, レンズに傷を付けてから後悔するよりは最初からこれを使うことがおすすめです.(昔の50mmにBR-2Aとこれとフィルターを付けっぱなしになっています)デジタル一眼でもFマウントなら使えるので,AFなしAEなし でもデジタルなので失敗したら何度でも撮りなおしできる,という 遊びの接写が楽しめます.

BR-2Aを使用してリバースマクロ撮影を始めましたが特に屋外撮影で後玉レンズがむき出しはどうにも不安なのでBR-3を購入しました。サイズ、重さ、質感、操作性すべて問題ありません。このようなアクセサリーを継続して販売しているニコンの姿勢を高く評価します。BR-2と組み合わせてさらに中間に52㎜のスペーサーリングを入れることでマクロアダプターとして、さらに他マウント用のリバースリングと組み合わせてさらにスペーサーリングを追加してマウントアダプター及びマクロ機能付きマウントアダプターとしても活用しています。

マイクロフォーサーズのパナGX-7に、マクロ代わりにAi Nikkor 50mm F 1.4へ、リバースアダプターBR-2Aとセットで使用しています。どうしても必要なリングではありませんが、マウント側の後玉（リバースで前玉）がむき出しになるのを回避し、フィルターが付けれます。50ｍｍ単焦点でも、リング2枚にマウントアダプターをつけると相当な長さになります。覚悟はしてましたが重さも含めて一寸ビビリますが、接写遊びはなかなか楽しいです。