ENT Alpha Air 3 ENT The Seiler Alpha Air 3 is our most economical high quality ENT Microscope. Offering 3 steps of magnification, Apochromatic Lenses, the brightest Standard LED light source on the market, and a gas piston Pantographic Arm specifically engineered for the ENT professional. Alpha Air 6 ENT The Seiler Alpha Air 6 revolutionizes the way the ENT microscope performs and operates. The Alpha Air 6 offers 6 steps of magnification, Apochromatic Lenses for superior optics, and the brightest Standard LED light source on the market. Also, a gas piston Pantographic Arm specifically engineered for superior maneuverability is standard. View Mounting Options