This 77mm Magnetic Quick-Swap Neutral Density 1.2 Filter from Freewell is an ND filter with a 16x filter factor that provides a 4-stop exposure reduction. The filter's 1.2 density darkens the entire image area without affecting the image's coloration, allowing the photograph to be made with a wider aperture or slower shutter speed than is usually required. Widening the aperture allows for finer control over depth-of-field to help isolate the image subject or increase bokeh. Slowing the exposure time increases blur and conveys movement more easily.

Each surface of the filter is multicoated to help eliminate internal ghosting and reflections. In addition, it features a resistance coating to repel oil, dust, and scratches, offering greater protection to the filter when working on location in harsh environments. The coatings are also hydrophobic, resulting in an improved beading effect when in contact with water or oil for easier cleaning and maintenance. The aluminum filter ring also includes 77mm front threads, permitting the use of screw-on filters with 77mm rear threads.

This filter is designed specifically for photography applications. This filter is not suitable for direct solar viewing with the naked eye, including with optical viewfinders.

1.2 Optical Density    Designed for Solar Photography    Darkens Entire Image Area    Reduce Shutter Speeds, Widen Apertures    Schott B270 Glass, Multicoated Surfaces    Dust, Water, Oil, and Scratch Resistant    Includes Magnetic Lens Adapter Ring    Reduces Bluish Cast of Daylight    Fits 77mm Lens Filter Threads    Storage Case, Lens Cap, Cleaning Cloth

• Magnetic solid neutral density filter
• 1.2 ND filter darkens the entire image, allowing the use of a longer shutter speed or wider aperture than usually required
• Provides a 4-stop exposure reduction for control over depth of field and to convey movement more easily
• Filter does not affect the overall coloration of the image
• Constructed from SCHOTT B270 glass for increased optical clarity and color fidelity
• Multicoated to prevent internal ghosting and reflections
• Coated for oil, static, dirt, and scratch resistance
• Improved beading effect with water and oil for more efficient cleaning
• 77mm front filter threads allow the use of traditional screw-on filters
• Includes magnetic adapter ring, storage case, lens cap, and a microfiber cloth for cleaning and maintenance

Related Questions and Answers

Q: 1. Will this magnetic base ring work with my 77mm Freewell Variable ND + Mist (BH #FRFW77MVNDBR)? Can you confirm that the ND + Mist filter will attach magnetically to the base ring, with no screwing required?

A: The Freewell Empty Magnetic Base Ring (77mm) will screw into the filter thread of your lens in order to hold the Freewell Mist Edition Threaded Bright Day Variable ND Filter (6-9 Stops, 77mm).

Q: 2. Will this work with step Will this work with step rings, 72–77, 62–77 as example?

A: Yes, you can use the Sensei 72-77mm Aluminum Step-Up Ring and the Sensei 62-77mm Aluminum Step-Up Ring with the Kase 77mm Wolverine Magnetic Professional Neutral Density Filter Kit II.

Q: 3. Is the base magnetic hollow ring included? Is the magnetic cap included?

A: Th Freewell 82mm Magnetic Quick-Swap Circular Polarizer Filter includes the magnetic cap.

Q: 4. will these work on both Sony FE 24-105 F4 G and Canon RF 24-105 f4?

A: Yes, the 77mm Wolverine Magnetic ND filter Kit II will work with both the Sony and Canon 24-105mm lenses

Q: 5. Will this ring work with the discontinued Xume magnetic filter system?

A: To our knowledge, the discontinued Xume system has not be tested specifically with the Freewell Empty Magnetic Base Ring. The results may vary.

Q: 6. With the 77mm magnetic adapter ring attached to my Sony 24-100mm lens (also 77mm thread), can the lens hood still be used? And same question for the 100-400 mm lens.

A: Yes, it is possible to use the Sony lens hood when using the Kase 77mm Wolverine Magnetic Professional Neutral Density Filter Kit II on your lens.

Q: 7. How does this differ from the Kase 77mm Wolverine Magnetic Professional Neutral Density Filter Kit II (BH #KAMGKITPRC77 MFR #KW-MGKITPROC-77)?

A: The Kase Wolverine Stack Kit (KAMGKITSC77) comes with the rear-filter cap that enables a more streamlined system for storing and carrying your filters, with the caps at the top and bottom of the stack. The other kit you have linked only comes with a front lens cap.

Q: 8. Is the UV filter included here?

A: No, there is no UV filter included. Just the polarizer.

Q: 9. Does the NiSi 77mm Variable ND 1.5 to 5 filter stop have a HARD STOP?

A: Yes, the NiSi 77mm Variable Neutral Density 0.45 to 1.5 Filter (1.5 to 5-Stop) has hard stops.

Q: 10. I ordered this and have noticed that the lens cap of none of my 77mm lenses does not fit. Is there a cap that can fit over this filter?

A: This 90mm push-on lens cap will work for this filter: https://www.bhphotovideo.com/c/product/125305-REG/Kaiser_206990_90mm_Push_On_Lens_Cap.html