Antlia 3nm SII Pro Series Filter - 2" - SII-PRO-3NM-2 Bresser 3 SCT Focal Reducer Specifications

3 SCT Focal Reducer Specifications

25” filters has 26 mm of clear aperture

5 mm focal length version of the Explore Scientific 52° Series™ eyepieces is best used when you wish to obtain high power (magnification) from your telescope

the Kite Optics 12x30 APC Stabilized Binoculars will amaze and delight you every time you view through them and see what you want with utter clarity

a feature that sets it apart from competitors

Antlia 3nm SII Pro Series Filter - 2" - SII-PRO-3NM-2 Bresser 3 SCT Focal Reducer SpecificationsThis very narrowband 3 nm SII 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 drawer. Antlia 3nm Pro Series Sulfur II Filter 2" Mounted This Antlia SII Pro narrowband filter optimizes the FWHM (full width half maximum) to a 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro