Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Lens for Pentax K

Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Lens for Pentax K

Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Lens for Pentax K

B&H # SI4528EXDCP MFR # 486-109
Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Lens for Pentax K

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Product Highlights

  • Pentax K Mount/APS-C Format
  • 6.75mm (35mm Equivalent)
  • Aperture Range: f/2.8 to f/22
  • One SLD Glass Element
  • Super Multi-Layer Coating
  • 180° Angle of View
  • Circular, Distorted Image
  • Hyper Sonic Motor AF System
  • Six-Blade Diaphragm
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  • 1Description

Offering creative distortion and exaggerated perspectives, the Pentax K-mount 4.5mm f/2.8 EX DC HSM Circular Fisheye Lens 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, as well as a Super Multi Coating to suppress lens flare and ghosting. 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 Pentax K-mount DSLRs 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, true "fisheye" 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 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, insertion-type gelatin filters.
UPC: 085126486617
In the Box
Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Lens for Pentax K
  • LCF-72 III 72mm Lens Cap
  • Cap Adapter for a Sigma 4.5mm f/2.8
  • Rear Cap LCR II for Pentax K Mount Lenses
  • Carrying Case
  • Limited 1-Year North and South America Warranty Against Manufacturing and Workmanship Defects
  • Limited 3-Year U.S.A. Extended Warranty Extension Against Manufacturing and Workmanship Defects
  • Table of Contents
    • 1Description
    Performance
    Focal Length 4.5mm
    Aperture Maximum: f/2.8
    Minimum: f/22
    Camera Mount Type Pentax K
    Format Compatibility APS-C
    Angle of View 180°
    Minimum Focus Distance 5.31" (13.5 cm)
    Maximum Reproduction Ratio 1:6
    Elements/Groups 13/9
    Diaphragm Blades 6
    Features
    Autofocus Yes
    Physical
    Filter Thread Rear Gel:
    Dimensions (DxL) Approx. 3.00 x 3.06" (76.2 x 77.8 mm)
    Weight 1.03 lb (470 g)
    Packaging Info
    Package Weight 1.2 lb
    Box Dimensions (LxWxH) 5.5 x 5.0 x 4.0"

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