Sigma 4.5MM F2.8 EX FISHEYE Lens

Sigma
Product #:
SGL486110
Manufacturer #:
486110

- For use with smaller chip APS-c cameras only
- Produces striking images with exaggerated perspective & extreme barrel distortion
- HSM (Hyper-Sonic Motor) ensures a quiet & high-speed auto focus
- Minimum focusing distance of 5.3" & magnification ratio of 1:6

Lens Filter Size:
Gel
Lens Filter Size:
The size of the filter that fits the lens.
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Lens Type:
Fisheye
Lens Type:
This is the type of lens.
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Overview

Overview

The Sigma 4.5mm F2.8 EX DC Circular Fisheye HSM creates an image that is a circular, curved, distorted view of reality when used on a digital SLR camera. One of the most unusual lenses a photographer can use as it produces a circular image within a black surrounding frame. It is ideal for landscapes and panoramic photography. Because of its equisolid angle projection system, the lens can be used for scientific applications. The minimum focusing distance of 5.3 inches allows the photographer to have fun with placement of subjects extremely near to the camera with distorted backgrounds. SLD (Special Low Dispersion) glass employed for effective compensation of color aberration, Super Multi-Layer lens coating reduces flare and ghosting and assures high image quality throughout the entire zoom range. In the hands of a photographer looking for creative expression and the opportunity to explore and create, this is the ultimate creative tool. 

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Specifications

Brand
Sigma - Sigma
Physical Specifications
Length: 3.1"" (7.87 cm)
Length:
The measurement of something from end to end.

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Weight: 1.03 lb (470 g)
Weight:
The physical weight of the item without packaging.

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Color: Black
Color:
The color of the item.

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Maximum Diameter: 3.0"" (7.62 cm)
Maximum Diameter:
The maximum diameter.

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Brand
Brand: Sigma
Brand: Sigma
Lens Specs
Lens Filter Size: Gel
Lens Filter Size:
The size of the filter that fits the lens.

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Minimum Aperture: f/22
Minimum Aperture:
How wide a lens can be opened.

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Elements / Groups: 13 Elements in 9 Groups
Elements / Groups:
The individual pieces of glass that form the overall optical construction. Most lenses have between four and eleven elements to bend the light rays to ensure a perfectly formed image appears on the light sensitive surface, such as a film or CCD. The elements are arranged in groups and may be seen in specification sheets as, for example, 6 elements in 4 groups. That configuration may have two single elements and the other four grouped in pairs.

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Lens f/Stop Range: 2.8-22
Lens f/Stop Range:
This is the minimum and maximum aperture of a lens.

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Lens Type: Fisheye
Lens Type:
This is the type of lens.

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Angle of View (diagonal): 180
Angle of View (diagonal):
Area of a scene that a lens covers or sees. Determined by the focal length of the lens

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Maximum Aperture: f/2.8
Maximum Aperture:
How wide a lens can be opened.

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Macro Magnification Factor: 1:6
Macro Magnification Factor:
A lens with a 1:1 magnification factor produces a projected image on the sensor which is the same as the subject. A 1:1 magnification factor is usually considered the minimum for a lens to be described as a “macro” lens. Specialist macro lenses are often 1:3 or even 1:10 magnification factors, meaning that 1mm across the subject becomes 3mm or 10mm when projected onto the sensor, thus 3 or 10 times magnification.

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Focus Type: Auto / Manual
Focus Type:
The type of focus of the lens from full manual control to auto focus.

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Mount Type: Sigma
Mount Type:
This is the mount type for the lens to attach to the camera body.

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In The Box

- Sigma 4.5mm F2.8 EX Fisheye Lens
- Front & Rear Lens Caps
- Lens Hood
- Lens Case

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