OPTOLONG SII 6.5nm NARROWBAND FILTER Size:2" the Veloce now uses an

the Veloce now uses an innovative Nano Coating® which has an amazing resistance to dust and moisture and a better transmission over a wider wavelength bandwidth range

This Prima Luce Lab M48 extension has an optical thickness of 9mm

Length 410 mm

Band-pass transmission 90% across major nebulae bandpass

12V power supply cable with lighter plug

OPTOLONG SII 6.5nm NARROWBAND FILTER Size:2" the Veloce now uses anThe Optolong SII 6. 5nm narrowband filter boosts the contrast of emission nebulae and supernova remnants for professional results, even under a bright sky affected by light pollution. This filter is used in combination with the H Alpha and SII filter to combine a narrowband colour image. The 6. 5nm band pass is only 2% of the entire visible spectrum, increasing the signal to noise ratio and delivering high contrast images and extremely dark