Variable ND Filter Size:77mm by rotating the ring you

by rotating the ring you control the effect

Increase Exposure Length

that are not dependent on internal mechanisms to determine focus or metering settings

Transform an average sunrise or sunset into something spectacular or convert a dull

Variable ND Filter Size:77mm by rotating the ring youProvides 2 to 8 Stops of Light Control Rotating Ring to Choose Degree of ND Eliminates Buying Many ND Filters Use to Create Blurs Special Effects Use with Film or Digital Wide Outer Ring Reduces Vignetting Black Aluminum Filter Ring ColorCore Glass Made in the USA Check out our Magnetic Control System Variable ND here! Access the User Manual Here