Tiffen 49mm Deep Blue #47B Color Balancing Filter Speedotron 102C7C 3 gallons / 5 liters

3 gallons / 5 liters Heat-up Time 5 minutes Output 25

Designed to remove AC hum noise Breaks ground loops Maintains sonic integrity Automatically translates signal voltages to match difference in ground potentials

The Copernicus II is a great GPS module from Trimble

5 ft Close Focusing Distance

Tiffen 49mm Deep Blue #47B Color Balancing Filter Speedotron 102C7C 3 gallons / 5 litersLightens Blue Objects ColorCore Glass Black Aluminum Filter Ring Made in the USA 10 Year Warranty A 49mm 47B Deep Blue Color Balancing Filter from Tiffen is a deep blue filter that accentuates haze and fog. It is also used in dye transfer printing, for contrast effects and color separation and tricolor work (lightens blue tones). Tiffen's ColorCore glass is produced through a process that entails permanently laminating the filter material in between