Premium Image Quality: Premium telescope filter for reducing the brightness of the moon and improving contrast and surface detail; reduces glare and improves definition; this can be useful when viewing the sky in areas where there is light pollution
Excellent Moon Filter: 1.25-inch Moon and Skyglow Filter is a multi-bandpass filter transmitting a high percentage of light in the visual spectrum; the Skyglow Filter absorbs more light at longer wavelengths and therefore increases viewing contrast
Exquisite Detailed Design: This filter is mounted in a nicely anodized housing and comes with a filter case to better protect the filter; easy to carry around and can be used directly to explore the mysteries of nebulae anytime or anywhere
Designed primarily for planetary observation "Moon; Jupiter; Mars and Saturn and more" but great for deep sky objects too; comfortable eye relief averaging 16mm across the series; threaded for standard 1.25 inch astronomy filters
Wide 58 degree Field of View "FOV" in 2.5mm to 25mm focal lengths; 1.25inch fully multicoated eyepieces give maximum detail and definition across the entire 58 degree field of view; each eyepiece has 5 lens elements in 3 groups