BAADER UHC-L / ULTRA-L-BOOSTER FILTER ERF the RMS spot size at

the RMS spot size at the edge of the field (not just on-axis) is an astounding 3

The William Optics T-Ring for Canon EOS-R mirrorless cameras is a high quality M48 camera adapter made from CNC-machined and anodized aluminium

Bottom dovetail 3” Losmandy slide (#10M2130) with special drilling

25" diagonal is threaded for 1

BAADER UHC-L / ULTRA-L-BOOSTER FILTER ERF the RMS spot size atThe new Baader UHC L Ultra High Contrast filter is a dual bandpass visual and photographic filter designed to block light pollution and increase the contrast of emission nebulae and cometary C2 emission lines. The high transmission results in a much brighter image than other UHC filters. The passbands centre around the OIII & H alpha lines making this a wide dual band filter without changing the star colours. This new version is optimized to reject