Hoya 72mm Linear Polarizer Glass Filter Adapter Rings This compact Z-shaped frame uses

This compact Z-shaped frame uses a rectangular steel tube frame for support of all of your keyboard and computer gear

Note: This product is designed as a replacement adapter for keyboards that originally shipped with a USB-PS / 2 adapter

6 cm Exterior Dimensions Not Specified By Manufacturer Weight 4

2 cm) Weight 6

1x Resistor - 10K

Hoya 72mm Linear Polarizer Glass Filter Adapter Rings This compact Z-shaped frame usesLight rays which are reflected become polarized. Polarizing filters are used to select which light rays enter your camera lens. They can remove unwanted reflections from non metallic surfaces such as water or glass and also saturate colors providing better contrast. The effect can be seen through the viewfinder and changed by rotating the filter. The filter factor varies according to how the filter is rotated and its orientation to the sun. Filter