ETC CALS470 Source 4 Lens Barrel 70-Degree 100738258 Low noise and distortion

Low noise and distortion

providing starting points that take you a long way towards achieving great sound

Focus adjustment: smooth focus adjustment from rear

and WAV files to MusicXML

ETC CALS470 Source 4 Lens Barrel 70-Degree 100738258 Low noise and distortionETC CALS470 Source 4 Lens Barrel 70 Degree This is a 70 degree lense tube with lense installed for an ETC Source Four Ellipsoidal Spotlight. It provides a wide spread of light when installed in any ETC spotlight. ETC Source Four spotlights are normally sold with lens tubes of 5, 10, 19, 26, 36, or 50 spread. Install this tube if your present 19 50 ETC spotlight provides a beam that's too narrow for your application.