UPDATE 12/21/2019:Please see review updates below leading to this latest update and a change for my review for this filter to 5 stars:First to say Jongsun did an awesome job for supporting a customer with issue on their lens. They stayed in touch with me all the way from China and got a replacement filter to me to test out and review accordingly. Julia there even apologized for the gap of delay due to time zone differences, although that courtesy wasn't needed.After testing over a week with and without this filter using controlled conditions, on a tripod, shutter speeds at least 1/1000 sec or faster. Focus verification on the exact same spot for with and without filter comparison, the images were unedited and un-sharpened RAW images and all looked identical filter on or off, at 600mm. The replacement, although the packaging and filter itself were identical to my precious filter that had the issues, "clearly", (no pun intended) did NOT degrade my Sigma at 600mm, the worst case for the issues I had with soft images and lack of sharpness/detail prior to the replacement.Haze filters that are ruining the Sigma 150-600mm (as well as the Tamron equivalent and the Nikon 200-500mm as well)are out there in forums......it is not chronic, but, then again, not everyone has a super-telephoto and thus, might never see an issue with a lower focal length telephoto.So in summary, the replacement that Jongsun sent me and in only a few days, resolved my issues.The filter is thin profile as many have said, but, no issues on my Sigma. The threads are fine and "dry".....so be gentle threading these on. I typically place the filter on the lens and gently turn it first counter-clockwise until I feel the slight "click" where the correct entry point on the thread alignment are for lens and filter and then begin screwing it in clockwise. this system has always worked well for me; no jams or cross-threading.So in summary, a great filter and a great company who stands behind their product and is willing to bend over backwards to try to resolve issues for their customer. I will be ordering a few more of their lenses for some upcoming new glass some time next year. JONGSUN has earned my continued business. Well done!UPDATE: 12/13/2019. JONGSUN contacted me and graciously provided another replacement for me to test my Sigma 150-600mm Contemporary lens with. That test is in progress and I will update this review accordingly w/i a few weeks . (by end of 12/2019).Given the excellent customer support and effort to try to resolve my issue with a replacement which they have provided, I will state, ...even though my tests are not completed, that they do support their customers 100% and fully stand behind their products.------------------------------------Having had a bad experience where all lens sharpness was totally destroyed using a cheaper 95mm haze with my Sigma 150-600mm, I had hopes this more expensive lens with multi-coating and higher quality glass would do the trick.It did not!Focus was perfect with and then without the filter and like my previous filter, as soon as this JONGSON filter was removed, my lens was back to stellar performance at 600mm.Will try to review forums on line and see who purchased a filter that actually will work fine with my Sigma.The degradation using this filter (like the previous one) is at 500-600mm. Given higher magnification probably maximizes the optical issues using the filter.I think one reviewer got a swap that seemed to work better, but, if this is indeed a quality control issue, (you either get a "good one" or a "bad one"), that scenario would still have me looking for another brand, hopefully a well known and trusted one!Returned it and my search will continue!

Very smooth operation and it holds my Nikon DSLR with a 600mm lens attached without any problems. The panning feature is very smooth as well and locks in place with little effort.

I love macro photography and recently brought a regular speedlight (albeit a compact one) so that I could take it around with me; a bit of a pain, if I'm honest, with having the diffuser on it and trying to get the best light. Then I noticed this one a month after, and it was even cheaper, so I thought I would try it.I actually have 2 macro lenses over the years, a Nikon F mount and a Nikon Z mount, and there is an important thing you need to do with the Z mount lens; do not mount the flash to the lens part, which moves in and out, attach it with a larger adapter to the outer case. This is because it will put undue pressure on the lens and can result in lens motor failure. I did a lot of research on that, so I thought you should know.Loved the fact that it came with so many adapters, as I was a bit worried I was going to have to find some to fit my lenses.The light is beautifully even that comes out of it and really makes your picture pop, and the cable to the main unit is soft and flexible and doesn't pull against front. Very simple controls on the back to adjust the power, and so far, I've only needed the lowest setting for macro work, although I'm sure the higher setting will come in useful for portraits (not tried that yet).

I enjoy macro photography and was very happy when Nikon announced the 105mm f2.8 Micro lens for the Z mount cameras.The lens is larger than than the F mount counterpart, but not as heavy. It produces outstanding images, sharp from corner to corner. As a S-line Z mount lens, it has a customizable control ring and function button.Focusing is quick and silent, and the lens includes a focus-limiting switch to limit the working distance for close up work. It also has 4.5 stops of VR, so while you may not want to necessarily ditch the tripod for true macro work, you can use this in the field with confidence if you are not traveling with a tripod. The included photo was taken handheld.Highly recommended!

I bought this gimbal for use with my Sony A7III and the FE200-600 lens. When I set it up as described, it would not balance when the tilt locking knob is completely disengaged. The foot is too short for the camera and lens to be moved far enough back in the mount to achieve balance. I purchased the longer Leofoto replacement foot and tried it. The Leofoto is long enough, but unfortunately, it has a heel that sticks out and does not allow the lens to move above 60 degrees of elevation without hitting the base of the gimbal. I then tried the Wemberley AP-620 replacement foot. It is long enough to achieve balance and does not have a heel. It works nicely and I was able to balance the camera and lens in the gimbal.My only remaining complaint with the gimbal is the mounting platform vertical adjustment. It does not have any dampening. As soon as I loosen the platform locking knob, gravity drops the platform into the lowest position. This does not lend itself to minor adjustments and can be very cumbersome when trying to adjust a heavy lens.In regards to customer support, I reached out to Siriu to see if they could offer any suggestions. I could not find a support link on the Sirui website and ended up sending an email to their sales department. I received a response the next day from someone in Germany. It was of little help. Their follow-up questions, such as "what is the weight of the lens", were a waste of time. They could have been resolved with a simple online search. It took nine days to exchange three email messages with them. I responded almost immediately. They waited days to reply. Although they advertise this product as a "perfectly fit with a mirrorless camera and compatible 200mm-600mm telephoto lens." They have obviously never tested this claim with the Sony 200-600mm lens and stock foot. Actually, I'm not sure if they tested it at all. I can't find another "200-600mm" mirrorless camera lens on the market. So I'm unsure of the basis of their claim.In summary, it's a decent gimbal for the price. But the marketing materials are either based on faulty testing or failed to disclose that the results were dependent on the use of a third-party lens foot. In addition, one of the main adjustments (locking platform elevation) is difficult to use with heavy lenses. A more accurate rating is probably closer to 3.5 stars. Given that the gold standard gimbal, the Wimberley WH-200 is near twice the price at $595, I am generally satisfied with the Siriu gimbal at $299. I did have to spend an additional $79 on the Wimberley foot to make it work. However, I would have probably bought it anyway, as the stock foot is not Arca-Swiss compatible.

Solid build, just what I need to hold a 150-600mm lens firmly.

Purchased mostly as extra protection for my Tamron 150-600mm lens. Fits fine and does what I want it to do. Good value.

Great Strap, Lightweight works well with my Canon and Sigma 600mm Lens Cant wait to test it out at The Airshows.