ANTLIA SII 2.5nm ULTRA NARROWBAND FILTER 2" pier Sensor size compatibility APS-C and

Sensor size compatibility APS-C and smaller

The Testar Dew Heater Power Regulator allows you to finely adjust the power of dew heater straps

blocking interference from other wavelengths and minimizing halos around bright stars

Diameter: 21mm

leading to sharper and brighter images

ANTLIA SII 2.5nm ULTRA NARROWBAND FILTER 2" pier Sensor size compatibility APS-C andThe 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