Designed with professional landscape photographers in mind, this 170 x 190mm Benro 170x190mm Hard Edge Graduated ND Filter 3-Stopfrom Benro 170x190mm Hard Edge Graduated ND Filter 3-Stophas an 8x filter factor that provides a 3-stop exposure reduction in selected areas. This specific model features a hard edge in its center that starkly divides the clear section and the darkened section, making it ideal for photos with a sharp horizon such as seascapes and elevated urban landscapes.

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.

0.9 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 0.9, with a sharp line in the center dividing the transparent area and the darkened area.
• Filter factor of 8x makes for an exposure reduction of 3 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. is this filter compatible with Pentax 58mm lens?

A: I have used this filter with Canon lens. No problem. Also have mounted the filter in front of a HOYA uv filter. No problem. While I have not used it with any PENTAX lens, I would expect that there will be no problem since the mounting thread for 58mm is standard.

Q: 2. 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: 3. Hi I have a canon 50mm 1.8 stm lens will this fit on it thankyou

A: No,canon filter size is 49mm.You should buy 49mm variable neutral density filter.

Q: 4. 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: 5. Does it come with a case? Thanks!

A: it comes in a hard plastic case with some padding.

Q: 6. Hi, do you know if I could couple this filter on the Freewell quick swap system? I have the Freewell magnetic filter kit but they discontinued their revers grad filter.

A: Although both systems are magnetic, they have not been tested with one another to our knowledge. Your results may vary.

Q: 7. What size cap will fit this filter?

A: I contacted a technical Rep with Bower, and he tried it with both a standard type 52mm lens cap, and also the newer design many manufacturers are using with the center-pinch type and both fit without issue. I'm not sure what that comment in the customer reviews may have been experiencing but it will hold a standard 52mm lens cap.

Q: 8. What is outside diamater? I want to attach a screw in hood.

A: The outside diameter is 62mm.

Q: 9. HelloWould this Filter and the Hoya 52mm Alpha Circular Polarizer Filter work (Compatible) with Panasonic Lumix FZ200?Thank you.Shaun

A: The sizes of both filters are the proper size for the FZ200 and will properly fit it, however Panasonic's instruction for the manual discourages use of two filters on the camera, likely as it will become too darkened for the camera to autofocus with.

Q: 10. 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.