Antlia OIII 3nm Pro Filters (OIII-3NM-PRO)

Antlia OIII 3nm Pro Filters (OIII-3NM-PRO)Antlia OIII Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nmbandpass. As the bandwidth becomes narrower, the 3nm Pro narrowband filters enhance contrast of emission targets by lowering the unwanted background signal. Antlia OIII 3nm Pro filters are designed to deliver 85% transmission at the 500. 7nm line which provides you with the maximum signal and well defined nebulae structures.> Conventional broader narrowband filters

High quality monocular at an affordable price

and other challenging objects

3um pixel size falls within a reasonable range

The Celestron C11-A packs serious light gathering ability into a rugged aluminum optical tube

93") Filter diameter (external): 145mm (5

25” Schmidt Cassegrain and EdgeHD telescope tube confidently

25") Field Stop Diameter 26mm (1

the essential things to look for when birds appear in the field—as well as the basic concepts of bird identification and the variations that can change the appearance of a bird over time or in different settings

work with SmartHeat Dew Controllers Compatibility 8" Schmidt-Cassegrain

Easy to use in the field

System suitability for projection photography

exclude counterweight Mount weight 10 lbs (4