Canon EF 135mm f/2 L USM lens

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Key Features
EF 135mm f/2L USM

Maker:	Canon
Image Stabilisation:	No
Silent AF Motor:	Yes
Short Back Focus:	No
Macro Capable:	No
Unique features:	L-Series
Application:	Pro portraits
Technical Data
Type:	Prime
Focal Length :	135mm
Frame Coverage:	Full Frame
Aperture (max/min):	f/2 – f/32
Construction:	8 groups / 10 elements
# Diaphragm blades:	8
Close focus distance:	0.9m
Max. Magnification:	1:5.3
Physical
Max. Diameter:	3.25in / 82.5mm
Max. Length:	4.4in / 112mm
Weight:	1.65lbs / 750g
Filter diameter:	72mm
Accessories
Lens Hood:	ET-78II
Angle of View
Horizontal:	15°
Vertical:	10°
Diagonal:	18°
History
Introduced:	April 1996^[1]
Retail Info
MSRP US$	1700

The Canon EF 135mm f/2 L USM is a short or medium telephoto lens. The "135/2" is mainly used for portrait photography and for indoor sports, where the lighting is often poor. The "fast" f/2 aperture makes the lens ideal for both of these applications.

Among Canon photographers, the lens is highly regarded for its sharpness, contrast, and color rendition. The lens is also popular because it is very sharp at f/2, allowing the photographer to throw the background very much out of focus while recording a lot of detail on the primary subject. This is popular because it gives the photographer fine-grained control over depth of field.

1 Specifications
2 See also
3 References
4 External links

[edit] Specifications

The lens is of the internal focus type; the length doesn't change while focusing.
A maximum aperture of f/2 is one stop faster than any SLR zoom, allowing more light and shallower depth of field.