Tiffen 6 x 6" Streak 1mm Filter Smart-AVI SFX-4P-M-S When used in combination with

When used in combination with a polarizer

as well as a special coating to promote smooth film transportation within the camera

B+W 77-82mm Step-Up Ring

Snap-down rubber over-molded cushion grip handle

Tiffen 6 x 6" Streak 1mm Filter Smart-AVI SFX-4P-M-S When used in combination withSingle Light Ray from Point Light Source Etched Lines are Spaced 1mm Apart Optical Grade Glass Construction The 6 x 6" Streak 1mm Filter from Tiffen is a special effects filter designed to render a single light ray from a point light source. This filter features a single series of etched lines spaced 1mm apart from each other, which run diagonally across the filter surface. When the filter is rotated, the orientation of the light ray can be adjusted