Sky Mentor 1.25" Variable Polarizer Filter - TA189 classic plus the folding tabletop tripod

plus the folding tabletop tripod

Easy to install on existing Telrad Finderscope

it's made for the business end of your optical devices

This adjustable speed electric motor drive installs easily onto the Focusmate 10:1 fine focus unit

Sky Mentor 1.25" Variable Polarizer Filter - TA189 classic plus the folding tabletop tripodAdjust the brightness level of the Moon, Venus, and other bright objects with the Sky Mentor Variable Polarizer. A standard Moon Filter is similar to a pair of sunglasses. They work fine, but sometimes the scene is too dark or too bright, and theres not a lot you can do about it. A variable polarizing filter is much more flexible than a Moon filter. It allows you to set the percentage of attenuation by turning the top section of the two piece filter.