Antlia Sulfur II (SII) 3nm Pro Highspeed 50mm Filter (ANT-SII-3NM-PRO-50MM-HS)

Antlia Sulfur II (SII) 3nm Pro Highspeed 50mm Filter (ANT-SII-3NM-PRO-50MM-HS)Antlia's SHO 3nm Pro Highspeed Filters are further optimized for high speed imaging systems by pre shifting the center wavelength. This specially optimized version will provide significantly SNR (Signal to Noise Ratio) for the fast telescopes with focal ratio between f 2. 6 and f 3. 6 than the standard 3nm Pro version. The optical light path of a telescope is cone shaped, which creates an angle, and the center wavelength of the interference filter

Fits: Celestron 9

perfect for low light observation and digiscoping where light is extremely important

locking eye-guard is included for those who don’t wear eyeglasses

bright stars

arms and fingers and a golden opening visor with a seat inside for a minifigure (not included)

Aperture 85mm Focal Length 408mm Focal Ratio f/4

Material: Aluminum with plastic attachment clips

Connections of the Baader Tele-Compendium

Lunt Solar will be introducing a larger selection of ED Telescopes that will meet your Solar needs for Daytime observing and meet the additional requirements of Nighttime observing

and Vista) or Mac (10

44kg Rear-end thread type M54x0

You also don’t need to enter the date and time and then rotate the equatorial mount to a strange angle