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Sigma 8mm f/3.5 EX DG CIRCULAR FISHEYE lens

Full frame 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.


No Ultrasonic AF

Lenses with ultrasonic focusing mechanism tend to be quiter and faster than traditionally focusing lenses.


No 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.


No 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.


Supports drop-in filters

Drop-in filters are used in those lenses where either the front lens is too large, or the field of view doesn't permit the use of traditional filters at the front of the lens. Usually bright tele and ultra-wide angle lenses support this filter type.

This circular fisheye lens produces circular images with an angle of view of 180° when attached to a full-frame digital SLR or 35mm film SLR camera. It has a fast maximum aperture of F3.5 and a minimum focusing distance of 13.5cm (5.3�?). Sigma?EURTMs super multi-layer coating and Special Low Dispersion (SLD) glass provide excellent image quality for digital and film SLR cameras. The special fisheye design allows maximum creative expression.

Sigma 8mm f/3.5 EX DG CIRCULAR FISHEYE Specification

Available mount(s) Canon EF, Nikon F, Pentax K, Sony / Minolta A, Sigma
Application(s) Landscape, Interiors, Special effects
Category(s) Fisheye, Ultra-wide prime
Stabilizer no
Focal length 8 mm (prime)
Lens construction 11 elements in 6 groups
Angle of view 35mm: 180°
digital: N/A
Number of blades 6
Maximum aperture f/3.5
Minimum aperture f/22
Minimum focusing distance 13.5 cm
Magnification 0.22×
Filter size N/A
Size ∅ 73.5 × 68.6 mm
Weight 400 g
Notes Filter: gelatin
AF speed N/A
AF sound
Internal focusing no
Internal zoom N/A
Fix front lens yes
Mount type metal
Weather sealed N/A
Drop in filter yes
Ultrasonic AF no
Stepping motor AF no
APS-C sized circle no
Low dispersion lens element yes
Hard case N/A
Soft case N/A
Lens hood N/A
Tripod adapter N/A
Sigma 8mm f/3.5 EX DG CIRCULAR FISHEYE Specification

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