Haoge LMR-OM415 Lens Collar Replacement Foot Tripod Mount Ring for Olympus M.ZUIKO Digital ED 40-150mm F2.8 PRO,90mm F3.5 Macro is PRO Lens Built-in Arca Swiss Type Quick Release Plate

So far I am quite happy with this purchase. The product fits well and rotates well. It seems like it will serve its purpose well, and it has seen some use on tripods and equatorial mounts. I *did not* have the problem with the accessory not holding tight once tightened down. Maybe the product has been improved? Of course, the real test will be how this holds up over time. I’m normally hesitate to review on that account, but thought I would in this case as my product does not exhibit a problem many others have mentioned.

I bought this foot specifically for the Arca-Swiss grooves and for the possibility that the foot/plate could be removed and reversed. Haoge implied that it could and I'm happy to report that it is easy to do and remounts solidly in the reverse direction. Having it in "reverse" enables me to mount the lens+TC+camera body in balance on my Wimberley Mono Gimbal. It brings the CG of the lens right over the foot, which you can't do with the original Olympus tripod foot. Just try sitting the lens+body combo on the Olympus tripod foot on a flat surface. It'll tip backward. With this easy mod, the rig will sit level, which means the CG is over the foot. You need only a 3 mm Allen wrench. Easy peasy. Update: Some reviewers complained that the collar does not clamp tightly enough to keep the lens from rotating. I found that to be true. The clamping screw comes to a stop, but the lens can still rotate. But, I found out why and solved the problem. See the first photo and read the following: I was using the collar with my 40-150 Pro today and found to my dismay that when I tightened the knob on the collar, it wouldn't stay in position. It could still revolve. Some reviewers had mentioned this on Amazon, but I hadn't noticed it. I took the collar off and examined it closely. In the gap in the collar where the thumbscrew clamps I could see that there was a washer that kept the clamp from closing all the way. I unscrewed the thumbscrew as much as I could to expand the gap, and could see that there was a C-clip on the screw that got in the way. I was able to slip a small screwdriver into the gap and pop the C-clip off (careful, it'll fly, so watch out where it goes). After I removed the C-clip, the clamp will now close all the way and the collar clamps down tightly on the lens. But, without the C-clip, the thumbscrew could fall out if loosened all the way, so you'll have to keep an eye on it. Another update: my friend pointed out that if the foot is reversed, it will interfere with the body of the Olympus EM1X. He's right, the protruding grips of the X don't allow the reversed foot to rotate freely. Although it won't balance as well on the Mono-gimbal, I put the foot back in its original position facing forward. The good thing is that it's easy to put it in the position that works best for you. :-)

As other reviewers have experienced, my collar fit well on my lens. I'm using this on OM 90mm F3.5 macro. That lens has enough magnification and focuses close enough that, unlike my Oly 60mm F2.8 macro, a tripod is really needed for most of what I shoot. I WISH OM systems would have included one ... but I'm seeing that pattern a lot with this new OM thing. So this collar fits a definite need. It fit well to the lens, and seems very high quality. I would HIGHLY recommend this collar if you want to use the 90mm macro to it's full potential. The price, I thought, was good. It fit well to my lens - snug, but not too tight. It holds firmly and the tightening knob feels smooth, suggesting the threads are cut well. It moves smoothly into and locks well into my tripods - the arca plate is well within standard tolerances. I like the size of the foot - allows me a bit of adjustment on the tripod if I need it and feels like I've got "room" ... I'm not gripping right at either end of it. I did notice, as other reviewers have, that it is not as smooth as could be desired when rotating the lens in the collar. There is a slightly gritty feel that isn't present with Olympus collars on my other lenses. In closely inspecting the inside of this collar, there are no burs or other flaws. However the finish (ie "paint") is a bit textured vs my other collars. Not much, but a bit. Soooo.... I took some 1200grit sandpaper and wet-sanded the inside of the collar. I then ran some polishing compound on this with a rag, by hand. I did break out a dremel tool and buffing pad - just a bit by hand. I then rubbed some wax on it, leaving a veeeery light coat. That helped a lot. However, there was still a bit of "scratch" to my feel - slight, but there. It did not leave any mark at all on the lens, so NOT a real problem, just not 100% smooth. I took a fine diamond stone and slightly chamfered the edges where the collar is split, where the tightening knob is, and then sanded and polished those edges a tad. That did the trick. It now goes on smooth and the lens rotates very smoothly without any grit/grinding but still locks down firmly. I do NOT think there was any problem with my collar. And I'd even say that the finish was 95% perfect. I'm just picky, I just wanted that last 5%. After the above work, I'd say it's 99% of what the Oly collars I have on another lens do. I'm very happy that it only took some minor work to make this into a "as good as Oly" collar, so this is NOT a knock against this product. If you want a perfectly smooth collar and are NOT willing to do a little work, maybe skip this and shell out the $$$ for an OM or used Oly collar somewhere. If you are willing to do a little simple manual work, save $ for the effort, and end up with a solid collar, I highly recommend this collar without reservation.

Collar was loose on lens even when tightened fully. A few minutes with a rotary tool (Dremel-type) and the right bit, and a sander, and I was able to grind away enough material to allow for a snug fit... a black sharpie fixed the cosmetics. The collar now works. The foot portion works well in an arca-swiss type mount. Recommended if you are a handy-type person, but not recommended if you don't have hand tools and the ability to slightly modify the collar.

I've read some critical reviews about the tension knob but that is all fixed now. Very well made and as good or better than the lens it mounts on. I got it for the Arca Swiss plate built in but you might want to get it because it's better than the OEM. High recommendation.

At first look, the lens collar looks almost identical to the one from Olympus, with the exception that this has the grooves in the foot for attaching to an Arca-Swiss style clamp on tripod head. It lined up and went onto the 40-150 lens easily. When rotating the collar around the lens, there was a noise of the rubbing of the inside collar material with the lens barrel. When turning the locking knob, it stopped turning but the lens was not locked into place. The lens would still rotate inside the collar. This is not good. I want the lens to be held solidly in place. When attempting to loosen the lock knob, it took extra force to get the knob loose. If it was engineered and built well, the ring would hold the lens firmly in place when the lock knob was tight. And the lock knob would loosen smoothly to allow the lens to rotate easily. I am returning this product. I weighed this collar and it weighed 4.25 oz. I weighed my Olympus collar with a Really Right Stuff lens foot attached and it only weighed 5.5 oz.

I bought this INSTEAD of a plate and it cost less than the plate I was looking at. I removed the old collar (took a set of pliers) then I put this new on one in its place. Takes a second to perfectly line up the notches but once lined up, it slid on. It doesn't have any play at all. Very sturdy. It is a more sturdy solution for those who want to mount this particular lens to a tripod or monopod. I will note that the original collar gave you some wiggle room between tight and not tight. I got used to that and actually liked it. Sort of like the tension on a fluid tripod head. This replacement collar has no such wiggle room. It's either tight or not.

It's a nice well-made quality replacement except that it won't tighten enough to keep the collar from moving. I sent the first one back and at first the second one worked enough to keep and then it to stopped working so too late to return and it won't work. I may try and modify it.

Good product. Received the right product. Thumbs up.

I recently purchased a used Olympus 40 - 150 f2.8 Pro lens, which was reduced because both the lens hood and the tripod foot was missing. I noted in the reviews that some people were having problems with getting the lens to be gripped solidly by the clamp. As there are no alternatives to this device, I went and bought one anyway. On arrival my copy had the same problem as others had described and so looked how to improve the lock. I first tried a thin elastic band around the lens inside the engagement pins, this worked, but I was concerned about longevity. On closer inspection I realised that the circlip that prevents the locking screw was preventing the clamp from closing to it's utmost. I dismounted the lens, removed the circlip and reassembled everything. Now the clamp closes fully and grips the lens securely. I next disassembled everything again and placed the circlip on a flat part of a sharpening stone, then ground off the paint and a small amount of metal using my finger to grind the circlip in circles. After reassembly the grip was stronger, but still not achieving full lock. I had a couple of more goes and eventually settled on a grip that needed a large amount of force to make the lens rotate. If you must have a full grip just remove the circlip, but look after the clamping screw and circlip, if you remove it. However, how often is that likely to happen and why would you anyway?

レンズとの取り付けにガタがあり力を加えると回転してしまうというレビューがありますが、私の購入したものは対策が取られたのかしっかりと取り付けられ、ガタもありません。また、商品説明にはありませんが、以前のレビューで指摘されていたとおりQDソケットが付いています。

見た目も作りも収まり感も良いが、縦位置にするときに全くスムーズではない。それ以外は気に入っていただけに残念。

他の方も書かれている通り、写真のものではなく改良品が届きました。 早速MZD40-150 F2.8に取り付けてみると、最大まで締め上げてもゆるゆるでレンズが回ってしまいます。 これは他の方と同様内側にテープを貼ることで対処できました。 次に三脚に取り付けてみると、これまたやや緩く前後に動いてしまいます。 ストッパーがあるので落ちることはないし動く範囲も数mm程度ですが、これもやや気になります。 他は概ね満足ですし、ちょっと問題が起きてもどうにかできる人にならおすすめできます。