Lindsey Optics Brilliant2 4x5.65/138 1-Slot Variable ND Filter

Lindsey Optics Brilliant2 1 Stop Rota-Pol Circular Polarizer 4x5.65 SKU: L-4565-1STOP-ROTAPOL The Lindsey Optics Brilliant2 1 Stop Rota-Pol is a circular polarizer that fits in 4x5.65 cine matte boxes and allows simple and effective rotation of the included 138mm Round 1 Stop Brilliant-Pol Circular Polarizer. Our 1 Stop Pols absorb less light than our standard polarizers. When it's the end of the day and you're losing the light, the 1 stop loss allows control of reflections in difficult lighting conditions.  Large Diameter Clear Aperture The included 138mm diameter Brilliant-Pol circular polarizer gives a large 5.2" clear aperture. The large size of this rotating polarizer is useful even with wide angle lenses and large zoom lenses. It is noticeably more useful than other rotapola filters that use 4.5" diameter polarizers. Geared Rotating Tray for Quick and Sure No-Slip Rotation The 138mm Circular Polarizer is mounted in a geared rotating filter tray using one stage in 4x5.65" matte boxes. Rotation of the polarizer can be done by spinning either of the two geared thumb wheels by hand or with a motor mounted on the ¼ 20 thread in the handle.  Our superior mechanical design includes an all-aluminum main gear in which the 138mm 1-Stop Brilliant-Pol Circular Polarizer filter is mounted. The main gear is supported by internal Delrin™ rollers for smooth no-slip rotation. The main gear is driven by aluminum thumb wheels that have standard 0.8 pitch gear teeth for use with motorized wireless remote systems.

Lindsey Optics Brilliant2 4x5.65 Variable Neutral Density Filter SKU: L-4565-VARIND The Brilliant2 4x5.65/138mm Variable Neutral Density Filter is designed to fit in 4x5.65 matte boxes, occupying 2 slots in the matte box. It is constructed using two 138mm circular polarizers. One of the polarizers rotates and the other is fixed. It provides ND values between ND 0.6 (2 Stops) and ND 2.4 (8 Stops). The unique tray mount design allows quick and easy insertion. The handle has a standard 1/4 20 thread to allow mounting a motor for fade effects. If the motor is synchronized with the lens aperture a variable depth of field effect can be achieved.