Английская Википедия:Canon TS-E 24mm lens

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Шаблон:Short description The Canon TS-E 24 mm Шаблон:F/3.5L II is a tilt-shift, wide-angle prime lens that provides the equivalent of the corresponding view camera front movements on Canon EOS camera bodies. Though it uses Canon's EF lens mount, it does not provide autofocus.

Overview

The TS-E 24 mm Шаблон:F/3.5L II lens provides four degrees of freedom, allowing ±8.5° tilt with respect to the film or sensor plane and ±12 mm shift with respect to the center of the image area;[1] each movement can be rotated ±90° about the lens axis.

Shifting allows adjusting the position of the subject in the image area without changing the camera angle; it is often used to avoid convergence of parallel lines, such as when photographing a tall building. Tilting the lens relies on the Scheimpflug principle to rotate the plane of focus away from parallel to the image plane; this can be used either to have all parts of an inclined subject sharply rendered, or to restrict sharpness to a small part of a scene. Tilting the lens results in a wedge-shaped depth of field that may be a better fit to some scenes than the depth of field between two parallel planes that results without tilt.

Unlike most view cameras, the shift mechanism allows shifts along only one axis, and the tilt mechanism allows tilts about only one axis; however, the rotation of the mechanisms allows the orientations of the axes to be changed, providing, in effect, combined tilt and swing, and combined rise/fall and lateral shift. In addition to optical improvements, the TS-E 24 mm Шаблон:F/3.5L II also introduces a new barrel design, allowing the tilt and the shift to be rotated independently of each other without removing screws on the lens body, as was required on the original version.

Canon announced the second version of this lens on the 18 February 2009.[2] The lens has been in production since June 2009;[3] it replaces the TS-E 24mm Шаблон:F/3.5L that was introduced in 1991.[4]

Specifications

Attribute TS-E24mm Шаблон:F/3.5L TS-E24mm Шаблон:F/3.5L II
Image Файл:Canon TS-E 24mm f3.5L.jpg Файл:Canon TS-E 24mm f3.5L II.jpg
Key features
feat-special Perspective control, Scheimpflug principle
application landscape, architecture[5]
Autofocus capable No No
Full-frame compatible Yes Yes
Image stabilizer No No
Ultrasonic Motor No No
Stepping Motor No No
L-series Yes Yes
Macro No No
Technical data
Focal length 24 mm
type Tilt-shift lens
Aperture (max/min) Шаблон:F/3.5 / Шаблон:F/22
Construction 11 elements / 9 groups 16 elements / 11 groups
# of diaphragm blades 8
Closest focusing distance Шаблон:Convert 0.21 m (0.69 ft)
Max. magnification 0.14 × 0.34 ×
Horizontal viewing angle 74° (without any tilt or shift)
Vertical viewing angle 53° (without any tilt or shift)
Diagonal viewing angle 84° (without any tilt or shift)
Physical data
Weight Шаблон:Convert 780 g (27.5 oz)
Maximum diameter Шаблон:Convert 88,5 mm (3.5 in)
Length Шаблон:Convert 106,9 mm (4.2 in)
Filter diameter 72 mm 82 mm
Accessories
Lens case LP1216 LP1319
Lens hood EW-75BII EW-88B
Lens cap E-72 E-82 / E-82II
Retail information
Release date April 1991 June 2009
Currently in production? No No Yes Yes
MSRP 173,000 yen (w/case and hood) 250,000 yen / US$2,199 (w/case and hood)[6]

See also

References

Шаблон:Reflist

External links

Шаблон:Commonscat multi

Шаблон:Canon EF lenses