Tiffen 67mm Double Fog 3 Filter Zoom Handy U-24 The trackerball and ring work

The trackerball and ring work by optical laser pickup for high-precision and extended life

UPC: 733178285206

with the included screws

there are lesser eyepieces with similar claims of 70° apparent viewing fields

Tiffen 67mm Double Fog 3 Filter Zoom Handy U-24 The trackerball and ring workProvides a Fog Like Effect to Image Dramatically Lowers Contrast Maintains Sharpness and Minimizes Flare ColorCore Technology The Tiffen 67mm Double Fog 3 Filter simulates the effects of natural fog or mist by creating a soft glow around highlights and lowering the overall contrast of the scene. When compared to the standard Fog filter, this filter places greater emphasis on lowering the contrast while maintaining sharpness and minimizing the effects