EF 135mm f/2L USM

a telephoto lens, autofocus, internal focusing, ultrasonic motor, weight: 750 g, mount: Canon EF


Main characteristics EF 135mm f/2L USM
	Lens type	telephoto lens
	Bayonet	Canon EF
	For nepolnokadrovyh cameras

Survey parameters EF 135mm f/2L USM
	Autofocus
	Internal focusing
	Ultrasonic motor
	Image stabilization
	Focal distance	constant
	Min. Aperture	F32
	Min. focus distance	0.9 m

Design EF 135mm f/2L USM
	The number of elements in groups	8
	The number of elements	10
	The number of nizkodispersnyh elements $(from 1 to 7) number of applied in optical lens design (nizkodispersnyh). Variance is called optical phenomenon, when during the passage of the light flux from the environment and on Wednesday b (for example, from air into water) beams of light of different colors are refracted at different angles. Beams during light flow through the lens has refracted on the surfaces of the lens the lens, then the light hits on fotomatricu or film. On the output image, because of the dispersion of light, you might have unwanted color fringing. This kind of distortion, chromatic aberrations referred to specialists. Lenses low variance are made from special glass, it refracts light in the same way with any wavelength. Often than optical lens scheme applies more nizkodispersnyh elements, so it is less susceptible to the negative effects of chromatic aberration.$	2
	The number of petals of the diaphragm	8

Additional information EF 135mm f/2L USM
	Tilt Shift Function
	Thread diameter for filters	72 mm

Information for you