K&F Concept 55mm Variable ND Filter Adjustable Fader Neutral Density ND2 - ND32 Filter, No Spot x Black x Issue, MRC 28-Layer, Ultra Slim, Waterproof

High quality glass with magnificent ND filter performance throughout the entire ND2-ND32 range. There's no "X" from turning the filter too far since there's hardstops incorporated into the design.The set includes a magnetic adapter ring which screws onto your lens and serves as the mounting vehicle for the ND filter - just snap it on and off whenever you like. Very convenient.The filter itself provides a wide range of density, with minimal color shift which is important.Slim design is great and doesn't result in any vignetting during regular use.Overall, excellent filter that produces consistent and reliable results.

I was hoping to avoid buying super expensive VND's by going with these. I was also really interested in the ease of removing the filter since its magnetic. However, when I put this on a full frame camera with a 16-35mm lens the vignetting was awful! I got vignetting from about 24mm which is insane. I also noticed that the filter darkened from the sides first as opposed to the entire view. These are deal breakers for me since I do shoot a lot of real estate content and need to use nd filters at times. Oh well, I guess I am. going to have to dish out some extra cash on some Polar Pro VND's.The worst part is that I could not find ANY info on vignetting either on B&H's website nor K&F's website which should have been red flags. But I am thankful for B&H's return policy.

Play VideoThe DJI Air 2S comes stock without a lens cover or just an open frame and I was worried about protecting the glass.During my research before purchasing my first drone, I read the Air 2S does not have a aperture adjustment and uses shutter speed to compensate for exposure. Each of these Neutral Density filters or ND filter provides for increasing less light to the camera as the ND value increases or from 1/8 to 1/64 the amount of light. An online influencer recommended in his video to use a polarized filter to limit the light into the camera on bright days and more importantly as a lens protector and to provide glare reduction with polarization.I obtained this polarized set and did a test flight for each one and compared to the unfiltered lens or as a ... MorePlay VideoThe DJI Air 2S comes stock without a lens cover or just an open frame and I was worried about protecting the glass.During my research before purchasing my first drone, I read the Air 2S does not have a aperture adjustment and uses shutter speed to compensate for exposure. Each of these Neutral Density filters or ND filter provides for increasing less light to the camera as the ND value increases or from 1/8 to 1/64 the amount of light. An online influencer recommended in his video to use a polarized filter to limit the light into the camera on bright days and more importantly as a lens protector and to provide glare reduction with polarization.I obtained this polarized set and did a test flight for each one and compared to the unfiltered lens or as a stock Air 2S. Upon inspection they are quality products and fit on the Air 2S camera with just a small twist to lock in placeAttached is a video showing the unfiltered camera and then as a comparison each of the 4 different filters.I'm not a videophile and to my eye all the videos looked excellent. From no filter to each of the filters I could discern no color difference or video acuity between them. All the images looked excellent.I did see one difference however. Ive also read that some videographers like to use a filter in order to slow the effective shutter speed of the camera with more light attenuating filters and provide motion blur in the video. I did see motion blur especially with the ND 32 and ND 64 causing a blurring effect when the camera was panned.Conclusion: For me Ill just add a filter for the polarization and to protect the camera lens. But I found that each of the filters was excellent in maintaining the video quality and providing motion-blur.