Designed with professional landscape photographers in mind, this 100 x 150mm Benro 100x150mm Soft Edge Graduated ND Filter 5-Stopfrom Benro 100x150mm Soft Edge Graduated ND Filter 5-Stophas a 32x filter factor that provides a 5-stop exposure reduction in selected areas. This specific model features a soft edge in its center, fading gradually from completely clear to darkened as we move towards the top. This allows the filter to keep bright skies under control without creating a line in the image, making it ideal for pictures without a clearly defined horizon line.

The Master Series filters are made with Schott B270 glass and finished with several different layers of coating. These layers increase the resistance of the glass to avoid scratches and help keep the surface waterproof, making it easier to clean when shooting in inclement weather. Additionally, the filter is designed for a neutral performance that avoids affecting color rendition and curtails the unnatural colors found in some pictures with high contrast.

1.5 Optical Density    Waterproof and Anti-Scratch Coatings    Schott B270 Glass Construction    Designed for Neutral Color Performance    Reduces Exposure in Selected Areas

• GND filter featuring a density of 1.5, with a smooth transition from completely clear to the darkened section.
• Filter factor of 32x makes for an exposure reduction of 5 stops.
• Filter features multicoated Schott B270 glass construction.
• Anti-scratch and waterproof coatings make filter easy to clean and allow for its use in rain or snowy conditions.
• Filter is designed to not affect color rendition and eliminate problems with high contrast areas.

Related Questions and Answers

Q: 1. What is outside diameter? I want to attach a screw in hood.

A: The outside diameter is 62mm.

Q: 2. any noticeable loss of image quality (especially sharpness) with this ND filter? Thank you

A: I was just now looking at the same subject shot with and without my Bower 52mm variable ND. And I didn't see the filter adding any softness at all. I'll do some more testing but I just don't see a problem at this point. Seems like a great value for 25 bucks. I suspect people may be shooting wide open, getting suboptimal sharpness, and blaming the filter.

Q: 3. Made with optical glass? Quality of product?Any suggest what I can purchase in the $100 range?

A: It is a quality product made with multi-coated filter. For the money you can't get a better filter and it's just as good as any other filter under $100.00

Q: 4. Will this filter work on a wide angle lens such that there is no vignetting or blocked portions on the image?

A: We use the 52mm as a drop-in for a 200-400 f4 Nikon lens. No problem there.

Q: 5. Can these be stacked?

A: You can not stack variable ND filters.

Q: 6. Can the frame be removed for it to fit in another brand filter holder? I currently have Lee system. If so, could it be reinstalled at a future date if needed?

A: The K series holder can fit other brands of filters that are 100mm wide and 2mm thick.

Q: 7. Will this fit the Nisi 75mm filter holder?

A: If the holder works with 75x75mm filters then yes you can use this in it. This should work with any 75x75 Filter Holder.

Q: 8. is there a filter that cuts reflection of car interior, w camera mounted to window on the inside, shooting out the car window?

A: Best for reflections is using a polarizing filter not an ND. This is some options, https://bhpho.to/46vbdOC.

Q: 9. What size and type of lens cap works with this filter?

A: This filter will have a 67mm front thread that will work with most 67mm sized lens caps.

Q: 10. What is outside diamater? I want to attach a screw in hood.

A: The outside diameter is 62mm.