Antlia 3nm H-Alpha Pro Series Filter - 2" - HA-PRO-3NM-2 (Pre-owned) Dioptrx and you''ll appreciate it when

and you''ll appreciate it when you increase or decrease the weight of eyepieces

and also create smoother and more natural colour transitions

Baader Dark Blue 435nm Bandpass Filter Features

25 mm Super Plossl eyepiece

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Antlia 3nm H-Alpha Pro Series Filter - 2" - HA-PRO-3NM-2 (Pre-owned) Dioptrx and you''ll appreciate it whenIn Excellent Condition! This very narrowband 3 nm H alpha filter from Antlia is part of their Pro 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 holder. Important! Not for use when viewing or imaging the Sun! Antlia 3nm Pro Series H Alpha Filter 2" Mounted This Antlia H alpha Pro narrowband filter optimizes the FWHM (full