The Profoto Tele Zoom Reflector is an exceptional camera accessory. In addition to basic lighting characteristics, it provides an angle of light that varies from 20 degrees at head position 5, to 30 degrees at head position 10.Uniform illumination and high light output increases the versatility of these lighting accessories reflectorsThis Profoto zoom 13 inch reflector gives f/90.3 @ ISO 100 at 2 meters with a 2400 W/s packThis tele zoom reflector is compatible with all Profoto heads, including ProTungsten Air and ProDaylight AirThe Profoto Tele Zoom Reflector is compatible with accessories used by the Magnum and Narrow Beam Reflector