Explore Scientific 1.25" Variable Polarizing Filter Accessory Type_Diagonal See the manual for details

See the manual for details of the required modification

Coma is a common plague of the Newtonian reflector design

Foldable eyecups for comfortable use and compact storage

Limited USA One Year Warranty when product is registered within 60 days of purchase

Battery not included

Explore Scientific 1.25" Variable Polarizing Filter Accessory Type_Diagonal See the manual for detailsUniversally applicable variable polarizing filter with 1. 25" filter thread. This variable polarizing filter allows continuous adjustment of image brightness. This is very helpful to strong contrast differences compensate individually to various observation objects. Especially with the Lunar and planetary observation but also in solar observing this prevents filter a blooming of the finest details. Sun observation only in connection with a suitable