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Sigma 56mm f/1.4 DC DN

Sigma 56mm f/1.4 DC DN lens

APS-C sized image

Lenses that create APS-C sized image are designed for digital only. They cannot be used on cameras that have image sensor larger than the APS-C format. These lenses are not suitable for film cameras either.


Stepping motor AF

Lenses with stepping motor focusing mechanism are better for contrast based focusing, and are quiter and faster than traditionally focusing lenses.


One or more Low Dispersion lens element is used

Low Dispersion lens elements help to reduce chromatic aberration.


Not stabilized

Image stabilization helps to reduce blur caused by hand shake, especially at high focal length or in low light situations. Image stabilization can give 1 to 3 stop advantage over none stabilized lens, based on the reciprocal rule.


Metal mount

Cheaper lenses are usually equipped with plastic mount, while more expensive, professional lenses have metal mount. In general, metal mounts are more durable, and a good thing to have when lenses are changed a lot. When a camera is used mainly with one lens, the material of the lens mount is not that important.


Internal Focusing

Internally focusing lenses don't change their size while setting focus.


The front lens is fixed

The fixed front lens is not rotating during zoom and/or focusing. This allows the photographer to use petal shaped lens hood. Fixed front lenses also make the use of polarization filters a lot easier.

Sigma 56mm f/1.4 DC DN Specification

Available mount(s) Micro FourThirds, Sony E
Application(s) Portrait, Sports, Landscape
Category(s) Telephoto prime
Multiplier 1.5×
Stabilizer no
Focal length 56 mm (prime)
Lens construction 10 elements in 6 groups
Angle of view 35mm: N/A
digital: 28.5°
Number of blades 9
Maximum aperture f/1.4
Minimum aperture f/16
Minimum focusing distance 50 cm
Magnification 0.13×
Filter size 55 mm
Size ∅ 66.5 × 59.5 mm
Weight 280 g
AF speed N/A
AF sound
Internal focusing yes
Internal zoom N/A
Fix front lens yes
Mount type metal
Weather sealed N/A
Drop in filter N/A
Ultrasonic AF N/A
Stepping motor AF yes
APS-C sized circle yes
Low dispersion lens element yes
Hard case N/A
Soft case N/A
Lens hood LH582-01 (included)
Tripod adapter N/A
Sigma 56mm f/1.4 DC DN Specification

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