Antlia 2.5nm OIII Ultra Series Filter - 2" - OIII-ULTRA-2.5NM-2 Aluminum Dew Shields 0 INNER DIAMETER / CLEAR

0 INNER DIAMETER / CLEAR APERTURE (MM) 140 OUTER DIAMETER 230 FILTER MOUNTED

Warranty: 3-years against delamination

Fully multi-coated optics for maximum light transmission through the optical path

StellarMate

Antlia 2.5nm OIII Ultra Series Filter - 2" - OIII-ULTRA-2.5NM-2 Aluminum Dew Shields 0 INNER DIAMETER / CLEARThis very narrowband 2. 5 nm OIII filter from Antlia is part of their Ultra series and comes in a 2" threaded filter cell that is designed to be screwed on to the 2" receptacle of your astrophotography accessory, including a 2" filter wheel or filter drawer. Antlia 2. 5nm Ultra Series OIII Filter 2" Mounted All Antlia 2. 5nm Ultra Series Filters are made with quartz glass and undergo precisely controlled coating processes to ensure optimal