Skip to content

Astrophotography Deal - Celestron 11" RASA - $1000 Off - Now Only $2595 - Limited Quantity On Hand

Baader Planetarium Ultra Narrowband 4.5 nm SII CCD Filter - 2" - FSIINU-2

shipping truck Free shipping
SKU: BAD-FSIINU-2

Baader 2" Round Ultra Narrowband 4.5 nm SII CCD Filter

This Baader Planetarium Ultra Narrowband SII CCD Filter is presented in a 2" round format and is best suited for fast f/8 to f/3.5 telescope optical systems. With this filter, users are given an introduction to the field of exceptionally narrow 4.5 nm SII CCD imaging. Enhanced ionized sulfur (SII) contrast emphasizes faint details in nebula while simultaneously suppressing more stars. Contains smooth interior surfaces with anti-reflective coatings.