Optolong LRGB Filter Kit 2" Mounted (OPT-LRGB-KIT-2) StarSense Ultima binoculars feature fully multi-coated

Ultima binoculars feature fully multi-coated optics

With this 8" Dobsonian and relatively dark skies

000 per kilogram-gives us a wider band pass than the titanium used in competing coatings

it can do damage to your OTA and setup

especially suitable for all reflector telescopes

Optolong LRGB Filter Kit 2" Mounted (OPT-LRGB-KIT-2) StarSense Ultima binoculars feature fully multi-coatedOptolong LRGB filter set is designed for maximum contrast and with extremely high gradients for clear differentiation of colours. The LRGB filter set divides the spectrum into its components red, green, blue and luminance. OIII emission overlaps on blue and green filters with maximum transmission to allow high efficiency and natural colour imaging. Gap between green and red filters serves to block out the primary Sodium light pollution line at 589nm