ANTLIA SII 2.5nm ULTRA NARROWBAND FILTER 2" pier Low profile design with an

Low profile design with an optical thickness of only 77mm

Diameter: 21mm

Sensor size compatibility APS-C and smaller

The Prima Luce Lab dew heater for 150mm tubes can be tightly locked around your optical tube by using the velcro patch

leading to sharper and brighter images

ANTLIA SII 2.5nm ULTRA NARROWBAND FILTER 2" pier Low profile design with anThe Antlia Sulphur II 2. 5nm Ultra narrowband 2" filter has a FWHM (full width half maximum) of an incredible 2. 5nm +0. 3 0. 1nm and a high transmission efficiency of > 95% at the central wavelength. These filters are made from quartz glass which has an ultra low thermal expansion coefficient and outstanding thermal and mechanical properties. Utilizing Antlia's precisely controlled advanced coating process, these filters are exceptionally durable and