Versatile Compatibility: This telescope accessory case is designed to hold 1.25" telescope accessories and is a versatile addition to your astronomy gear; you can store eyepieces; barlow lens; diagonal mirror; filters and adapters according to the size
Aluminium Oxide Frame: Made of polymer and aluminium, waterproof ensures that the casing is robust and prolongs its service life; as it is often placed on hard; stony surfaces; this reinforcement ensures that the casing will stand up to many years of use
Product Dimensions: External dimensions 320 mm/12.6 in long; 260 mm/10.2 in wide; 125 mm/5 in high; weight 2.56 lbs; Solid foam lining inside provides plenty of room for your accessories and protects your valuables from shocks and bumps on the road
New Upgrade: Astromania Upgrade Edition OIII Filter is used for capturing the gas tails and gas flows of comets; with the two brightest C2 emission lines at wavelengths of 511 and 514 nm; the full width at half maximum wavelength is less than 15 nm
Fused Silica Matrix: The OIII filter is made of silica matrix and has an aluminum metal casing. It features dichroic interference and anti-reflective coating; it is suitable for areas with light pollution and dark sky areas to enhance contrast