This 58mm samsung four door refrigerator water filteris an ND filter with a 8x filter factor that provides a 3-stop exposure reduction. Its 0.9 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. By increasing your aperture or slowing your exposure time, you are able to control depth of field and convey movement more easily. Neutral density filters are intended to not affect the coloration of the image and are ideal for pairing with other filters.

The design of this filter has been optimized for use with digital sensors and to promote nearly flat attenuation of visible light and infrared light. Due to imaging sensors' greater susceptibility to infrared light, compared to traditional film, color casts can occur when photographing darker subjects that require increased exposure times.

This filter is constructed from Water White glass for increased clarity as well as color fidelity. It is made using ColorCore technology, a process that involves laminating the filter substrate between two pieces of optical glass, grinding flat to a tolerance of 1/10,000th of an inch, and then mounting to precision metal rings.

0.9 Optical Density    Water White Glass Construction    ColorCore Technology    58mm Front Filter Threads    Darkens Entire Image    Allows Reduced Shutter Speed    Allows Wider Aperture    Neutral Results, Visible & IR Spectrums    Includes Plastic Case

0.9 neutral density filter darkens the image, allowing you to photograph with a longer shutter speed or wider aperture than normally required.

Providing a 3-stop exposure reduction, this filter allows you to control depth of field and convey movement more easily.

Attenuates infrared light to maintain color neutrality and suppress color casts due to increased exposure lengths.

Filter does not affect coloration of the image and is ideal for use with other filters.

Constructed from Water White glass for increased optical clarity.

58mm front filter threads allow for use with other filters.

Plastic filter case for storage and transport.

Related Questions and Answers

Q: 1. What you're saying is you have to have a separate control panel for the lock? Like lets say a door knob?

A: This magnetic lock is designed to be connected to an access control system to allow entry/exit from a door. It is typically used in businesses with either a key card swipe access or someone (eg: receptionist) can release the door to let in visitors.

Q: 2. Does this include all mounting hardware for basic install or are more brackets etc required?

A: Basic hardware is included: https://bit.ly/36wKcxm

Q: 3. i have bought a sigma 77 mm polarized circular filter . I returned the first one after 3 days as I found small scratches on the glass and have now found considerable more scratches on the second after only three months prompting me to think that the quality of the glass or polarizing finish is not up to par . I am finicky about how and what I clean my filter with , and how I store my camera , so I know that what ever has caused the scratches can not be that significant , but maybe the glass is not as hard / strong as it should be. Can,t seem to find any specs on the grade or hardness of the glass used for these filters. Any body have any ideas ?

A: It is best if the filter comes with scratches to contact B&H customer service.Customer Service, can emailed at ord-status@a href= http://bhphotovideo.com, target= _blank bhphotovideo.com,/a or call them after 9am EST at: 800.221.5743 or 212.239.7765. Or you can talk to them in Chat.

Q: 4. Any vignetting when mounted on a Zeiss 15mm lenses on Nikon D810?

A: This filter may cause vignette when mounted on a full frame camera and 15mm lens.

Q: 5. why am I having problems with scratches on the glasswhy am i getting scratches on the glass?

A: A filter like a lens is still glass and is sensitive to scratches like any other lens.Some filters are better than others. But a lens cap still needs to be used when using filter to protect it when you put it in a camera bag.

Q: 6. what is wr stand for?

A: Water resistant

Q: 7. How does this attach to a van door?

A: This rack can be screwed into van door if needed.

Q: 8. Can this pouch accommodate 52mm filters that are left in their cases? I have Nikon black and white contrast filters that come in fitted screw-together shell. This makes them a bit wider but thicker as well. Thanks!

A: I don't think the B6 will. But the B4 (designed for filters up to 82mm) will. I've tried it and it's snug but not overly so.

Q: 9. What is the specification size of this pouch?. Reviews seem to point that this pouch is oversized. Would like to know size specifications of this pouch.

A: The B+W B4 Four-Filter Pouch when folded measures 8.5 long by 4.5 wide. Unvelcroed, this pouch is 8.5 long by 12.5 wide, and with filters inside of the pouch, measures 1 thick.

Q: 10. Will this work with the LEE Filters 105mm Accessory Front Thread Adapter Ring &H # LEFARPFK105?

A: yes, it will fit perfectly on the LEE Filters 105mm Accessory Front Thread Adapter Ring.