Naliovker 37 mm Mobile Phone Camera Lens Professional Lens CPL Android Smartphone Neutral Density Filter Circular polarizing Filter ND2-ND400 Kit

This is a great CPL filter, works excellent in my Pixel 2xl... I will recommend it.

This Filter works well. I’ve used it to control light for many photos.

Works as described. Awesome buy!

On Samsung S21 Ultra.EDIT: filter arrived loose on mount, causing color casts and focus issues. Tightening up resolved most issues. I strongly recommend a tripod if using this to impersonate small apertures and long shutter speed.Pro: cheap. Easy to install. Good for demonstrating polarizing filters.Con: EDIT: The filter assembly wasn't screwed into the clip tightly, which threw it out of the critical zone and made image quality terrible. Tightening up made a huge improvement.It's two polarizing filters face to face. The polarizing effect is more visible at greater (combined) density. It confuses my auto focus lens choice (pro mode takes care of that but defeats zoom ability.) Strong purple cast central to image. Gradient zone is VERY narrow relative to my wide angle lenses.Conclusion: probably pretty good for a single camera cell phone with a lens less than 1" from the side, unlike my Samsung S9+ I might be able to get some tightly cropped long exposures of moving water with it but a straight 4 stop neutral density filter will do it much better. Not cheaper - better.

I paint fine art in acrylics and use a gloss varnish to deepen the colors on my canvases. I needed high quality photos for online listings but glare was such a problem I couldn't get pictures good enough to publish. A photographer friend recommended using a polarizing lens. Wanting something reasonably priced to experiment with, I purchased this product. I'm extremely happy with the result; my glare problem is solved. The clip fits my Pixel 3 easily and securely. The adjustment ring works smoothly. The lens is lightweight. Highly recommended.

Is almost imposible to use, it shows a pronounced X shape in almost every level of density.

Contrary to how a proper circular polarizing filter, this one only makes a difference if you position it correctly. Trial and error proved it out. I blame the autosensor on my mobile more than anything else. Good luck.

Better than expected for the price. Decent 37mm variable polarising filter, standard threaded and which is detachable so you can use the base clip with other filters and the filter with cameras that have 37mm lens threads such as some video cameras. I often use my phone for capturing technical screen shots so am trying to avoid reflections. Easier than carrying a full camera.

This a great lens! I bought it because I was filming a YouTube video and a noticeable increase in quality was seen. The light level stayed continuously the same. It also fit super well around my iPhone 8. Would definitely recommend!