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Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Lens for Sony A

BH #SI4528EXDSO • MFR #486-205
Sigma
Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Lens for Sony A
Key Features
  • A-Mount Lens/APS-C Format
  • 6.75mm (35mm Equivalent)
  • Aperture Range: f/2.8 to f/22
  • One SLD Element
Offering creative distortion and exaggerated perspectives, the Sony A-mount 4.5mm f/2.8 EX DC HSM Circular Fisheye from Sigma produces a circular image with an expansive 180° angle of view. Benefitting the unique look of the lens is an advanced optical design that utilizes one SLD glass element to reduce color fringing and chromatic aberrations for improved clarity. A Super Multi Coating has also been applied to suppress lens flare and ghosting for greater contrast and color accuracy. Additionally, the lens also features a Hyper Sonic Motor for quick and accurate autofocus performance for working with subjects as close as 5.3" away.
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Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Overview

Offering creative distortion and exaggerated perspectives, the Sony A-mount 4.5mm f/2.8 EX DC HSM Circular Fisheye from Sigma produces a circular image with an expansive 180° angle of view. Benefitting the unique look of the lens is an advanced optical design that utilizes one SLD glass element to reduce color fringing and chromatic aberrations for improved clarity. A Super Multi Coating has also been applied to suppress lens flare and ghosting for greater contrast and color accuracy. Additionally, the lens also features a Hyper Sonic Motor for quick and accurate autofocus performance for working with subjects as close as 5.3" away.

Unique 4.5mm f/2.8 circular fisheye lens is designed for APS-C-format Sony A-mount cameras, where it provides a 6.75mm equivalent focal length.
Expansive 180° angle of view pairs with the fisheye design to render circular imagery within a black frame. This design also renders scenes with exaggerated distortion and curved lines for a creative, distinct aesthetic.
One SLD glass element is featured in the optical design to reduce chromatic aberrations and color fringing for improved clarity and color accuracy.
Super Multi-Layer Coating has been applied to individual elements to suppress flare and ghosting for improved contrast and color when working in strong lighting conditions.
Hyper Sonic Motor autofocus system, and an internal focus design, offer fast, precise focusing performance for working with subjects as close as 5.3" away.
Rear slot accepts cut gelatin-type filters.

Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Specs

Key Specs
Focal Length
4.5mm (35mm Equivalent: 6.75mm)
Maximum Aperture
f/2.8
Lens Mount
Sony A
Lens Format Coverage
APS-C
Focus Type
Autofocus
Image Stabilization
No
Filter Size
Gel Filter (Rear)
Maximum Aperture
f/2.8
Minimum Aperture
f/22
Lens Mount
Sony A
Lens Format Coverage
APS-C
Angle of View
180°
Minimum Focus Distance
5.31" / 13.5 cm
Maximum Magnification
0.17x
Macro Reproduction Ratio
1:6
Optical Design
13 Elements in 9 Groups
Diaphragm Blades
6
Focus Type
Autofocus
Image Stabilization
No
Filter Size
Gel Filter (Rear)
Dimensions (ø x L)
3 x 3.06" / 76.2 x 77.8 mm
Weight
1.03 lb / 470 g
Packaging Info
Package Weight
1.535 lb
Box Dimensions (LxWxH)
5.45 x 4.45 x 3.9"

Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Reviews

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