ORION 5660 SkyGlow Broadband Filter for Schmidt-Cassegrains Instruction Manual
Learn how to use Orion's SkyGlow and UltraBlock Light-Pollution Filters with this instruction manual for #5654, #5656, #5657, #5658, #5659, and #5660. Discover how to mount these filters for visual and photographic use, and why dark adaptation is crucial for optimal results.