67mm Fader ND2-ND32 (1-5 Stop) Variable ND Lens Filter Neutral Density Filter for Camera Lens NO X Spot Nanotec Ultra-Slim Weather-Sealed

SKU: KF01.1061

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Please verify your camera's lens thread size(usually marked somewhere on the lens barrel or printed underneath the lens cap) before ordering.The number is always preceded by a "ø" (diameter) symbol 
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The amount of stops is the difference. It’s basically 2-5 stops, and 3-8 stops. 2-5(2-32) is perfect for photography. 3-8(8-128) is perfect for video. I do both so I got both and they both are PERFECT. 
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I've never used Hoya ND's, but I have GOBE, KERNEL, ZOMEI, and K&F ND filters. Out of all of them, I like the K&F the most because the colors look great out of the camera and they don't create a vignette around the edges like some of my other nd's which I hate. Because of the great out of camera colors, it gives you more to work with on post-production when you shoot on a flat profile. Also, I've used them during night photography on bulb mode to do light painting and the 4 - 6 stop ones work great for this. Overall, I think for the money the K&F filters are worth it. Awesome product! 
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If your tamron 28-75 lens is 67mm, the two filters both work for your lens. Please verify your camera's lens thread size before purchase (usually marked somewhere on the lens barrel or printed underneath the lens cap).The number is always preceded by a "ø" (diameter) symbol the two lens difference is the stops. 
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For this series, front thread diameter is bigger than the back thread diameter. for example: Back thread diameter (attach to lens): 40.5mm Front thread diameter (attach additional filter/other accessories): 43mm ND FILTER size front thread 37mm 40.5mm 40.5mm 43mm 43mm 46mm 46mm 49mm 49mm 52mm 52mm 55mm 55mm 58mm 58mm 62mm 62mm 67mm 67mm 72mm 72mm 77mm 77mm 82mm 82mm 86mm 
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Hi, this variable nd filter supports no vignetting range is 24mm. If the lens out of this range (such as 14),there would be a little vignetting on images. 
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Yes, the nd filter could stop at the end of the ranges. 
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Female threads