ANTLIA SII 2.5nm ULTRA NARROWBAND FILTER 2" pier Both sides of the clamp

Both sides of the clamp are equipped with M68 x 1 male threads as well as an M60 x 0

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

The precision helical focuser has a 10mm travel while the fast focus device has a 30mm excursion

leading to sharper and brighter images

Diameter: 21mm

ANTLIA SII 2.5nm ULTRA NARROWBAND FILTER 2" pier Both sides of the clampThe 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