Antlia 3nm H-Alpha Pro Series Filter - 2" - HA-PRO-3NM-2 carrying case and an M42 adapter)

and an M42 adapter)

2 x Adjustable outputs (3-12V and 12-24V)

Built-in GPS

This extra features performs as a safety stop to keep the diagonal from falling

SOLAR SAFE TECHNOLOGY

Antlia 3nm H-Alpha Pro Series Filter - 2" - HA-PRO-3NM-2 carrying case and an M42 adapter)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 width half maximum) to a