2" Skyglow & Moon filter for telescope eyepiece Flattener 9 mm Field stop displacement

9 mm Field stop displacement to reference plane -23

making it perfect for lunar and planetary observation

(Case and Finder Scope NOT Included)

952mm focal length

one of the most intriguing was a selective bandpass- filter to cut a good part of light pollution and greatly intensify the H-alpha wavelength of the visual spectrum – working as a whole like an RGB-Intensifier

2" Skyglow & Moon filter for telescope eyepiece Flattener 9 mm Field stop displacement2" Skyglow & Moon filter for telescope eyepiece Specifications: 2" standard large filter thread Reduces glare for the observation of the moon for a more comfortable viewing and to increase the ability to catch faint details Mild darkening of the sky background for enhanced contrast A broad spectrum of light transmission means it is a good allrounder filter suited to many applications, including the observation of the moon and planets. Metal