ZOMEI72mm Ultra Slim ND2-ND400 Fader Variable Neutral Density Adjustable ND Lens Filter Optical Glass

The media could not be loaded.  I heavily debated between 3 and 4 stars for this, and I decided to err on the positive side. If I didn't have the opportunity to make a direct comparison between this Zomei budget filter and the high-end Tiffen filter, I think I would have even given this product 5 stars for accomplishing so much in a fraction of the price. But a lot of its flaws became apparent as I stitched together this quick comparison video (specs and settings available in the video).Cons:- The first thing I noticed was that the rotation ring is a lot thinner, so it's more uncomfortable to smoothly rotate the Zomei filter compared to the Tiffen which has a thicker ring.- I didn't notice this while shooting, but when I started to edit the footage, I realized that the Zomei footage looked a lot softer than the Tiffen. At first I thought I may have accidentally adjusted the focus while switching out the filters, but I distinctly remember that I made sure to keep the focus peaking as consistent as possible. I don't think I would have noticed this without this direct comparison, but even with 4K footage scaled down to 1080p, there's a pretty significant loss of detail. (Not sure if all of these nuances will be noticeable in the video after it gets transcoded on this site though)- The overall build does feel a little cheap (probably because again, the ring is a lot thinner)- This doesn't bother me personally but may be a factor to consider for some: the filter comes in a plastic case that definitely doesn't scream quality. The tape that was closing the case was already slit open for me too (maybe it's because of customs when it gets shipped from China?)Pros:- It's nearly 5x cheaper for a product that holds itself up against Tiffen fairly well despite its flaws.- The thin rotation ring actually makes it easier to grip the part of the filter that allows you to screw it on/off the lens. I had a better grip on the Zomei while un/mounting it from the lens than the Tiffen.- Compared to the alternative (i.e. no ND filter), this is by far the preferred choice.Conclusion: I think this is perfect for amateurs and hobbyists, but I wouldn't recommend it for anyone who sells their work. The loss of detail is pretty severe and even if your clients don't notice it, I think you as a professional would. So for your own sake, I would invest in the proper equipment that best suits your specific photo/video purposes and leave these nice budget ones for those who just want a hobby :)

For the price, this filter performs pretty much how one would expect. If I had to add something to the "you get what you pay for" adage it would probably be "and you don't get what you don't pay for." The standard, baseline features are certainly here: when you twist the filter the amount of light entering the lens decreases while still remaining (basically) transparent.After that basic fact, there's not much else to call merit-worthy.Because it's too cheap for multicoating, the filter does suffer from some ghosting and reflections when shooting bright points of light (hello night photography). Because the engineering is perhaps a little cut rate the "min" and "max" markings meant to denote the transition between the ND2-400 settings serve more as suggestions rather than true guides. Likewise, the shallow filter thread doesn't always catch easily and sometimes leads to misalignment. And, finally, at the highest ND settings (i.e. near 400x) there's a noticeable drop in image quality (at least in higher resolution stills) and some X-shaped gradient patterning emerges as well. Those are all things that tend not to be an issue with more expensive filters.All that being said, for casual work and probably for most video needs (certainly shooting at 1080p), this filter does the job. I personally purchased this Zomei expecting these drawbacks and it didn't disappoint. But for around $25, it's hard to fault the Zomei; it delivers exactly the performance you'd expect for the price, maybe even a little better. If you want the performance of a $140+ filter, that's probably what you'll have to pay. If not, the Zomei will do, just know what you're giving up.

The fact that you can have an ND filter, without having to take it on and off when your surroundings change is great. I use mine for run and gun videography and I love to be able to change the exposure of my image without having to sacrifice bokeh or shutter speed. But I cannot give it a full five stars because there is one major flaw... the ring has a meter on the edge to show you how light it will go and how dark it will go but you cannot go as dark as it says without one major issue and that is vignetting on the corners. I didn't realize it until I took my video into post and now i wish I had never bought it... I understand the concept of how this works, and that the screens overlap to block wavelengths but it obviously doesn't blend well. Honestly to avoid this problem you can't make your image much darker... which defeats the whole purpose.I might hold off on this and buy something a little better build to avoid problems like this.

Works perfectly with my Sigma 18-35 on a GH4 shooting in either UHD or C4K. Nice build, comes in a nice case for storage (but don't bang it around too much).For my unit, I didn't see much of a difference if any between the first two markings on the ND filter. I saw no change in brightness. After the second however it rapidly became darker. There's no number markings so I don't know the specific ND number for each marker. But, that isn't much of an issue - I dial it in until I'm happy with the image. Good for run and run.My Sigma lens cap fits the front of this ND filter. At first it's odd because it feels like I'm pushing the filter down into the lens's ring, maybe touching the glass, but the lens cap clicks inside that metal ring and all is well.

Shipped directly from China. Well packed and arrived with no damage. See test shots. Variable ND filters works well. All shots takes at F4, ISO 100. Exposure time increases from 1/750 (first shot) to 1 sec by (last shot). As expected in last image, max ND produces a dark "X" on image. This is normal for variable ND filters. Second last shot has the beginning of the "X". Overall, I am impressed and look forward to using this filter.

(STILLS ATTACHED ARE BOTH REGULAR GH5s, SAME NATURAL PROFILE, ONE WITH AND ONE WITHOUT ND FILER)So when I first started my wedding videography company, I tried to save money where I could when buying gear. It wasn't until just this weekend where I realized how much this filter is actually softening and colour casting my images.For beginners and people on a budget, this isn't a bad price for this filter, I've never experienced the dreaded X when stopping down too much, however, the colour cast and softening you get from this filter is very drastic when compared to not using a filter.I will finally be upgrading to a more expensive and high quality ND filter.

Llego todo en orden buen producto a precio adecuado

Very good Variable ND filter. Served the purpose well. Worth the price!

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