Daystar Combo QUARK 4.3X Telecentric Barlow eclipse glasses Measure the outside diameter of

Measure the outside diameter of the frontmost component of your telescope or ERF

with an aperture of 80mm

humidity can cause a darkening of the blocker/trimmer element

bungee clamp

1Å and comes with 5 year warranty

Daystar Combo QUARK 4.3X Telecentric Barlow eclipse glasses Measure the outside diameter ofThis brand new QUARK optimized accessory is designed to fit our classic Combo Quark Hydrogen Alpha Filter. The 4. 3X barlow is one of two options for our new truly telecentric, fully baffled, custom engineered and Quark optimized barlows that enhance the performance of the filter. Use the 4. 3X telecentric barlow by unscrewing the silver snout from the Combo Quark and screwing on the barlow. For refractors from F 5 to F 9 you have a choice of the 2.