Sigma 500mm f/4.5 EX DG APO Lens for Pentax K

Sigma 500mm f/4.5 EX DG APO Lens for Pentax K

Sigma 500mm f/4.5 EX DG APO Lens for Pentax K

B&H # SI50045DGPAF MFR # 184109
Sigma 500mm f/4.5 EX DG APO Lens for Pentax K

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Product Highlights

  • Pentax K-Mount Lens/Full-Frame Format
  • Aperture Range: f/4.5 to f/32
  • 2 Extraordinary Low Dispersion Elements
  • Apochromatic Optical Design
  • Super Multi-Layer Coating
  • Internal Focus; Manual Focus Clutch
  • Rotatable Tripod Collar
  • Accepts Rear Drop-In 46mm Filters
  • Nine-Blade Diaphragm
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Lens Mount: Pentax K

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  • 1Description

A truly long-reaching lens designed for Pentax K-mount cameras, the 500mm f/4.5 EX DG APO from Sigma is a super telephoto characterized by its relatively fast maximum aperture and apochromatic optical design. Employing a pair of Extraordinary Low Dispersion glass elements to reduce chromatic aberrations and color fringing, this lens produces notable clarity and color fidelity throughout the aperture range. A Super Multi-Layer Coating has also been applied to realize greater contrast when working in backlit or difficult lighting conditions.

Complementing the optical attributes, this lens also sports an internal focusing design to deliver fast and quiet autofocus performance, and a manual focus clutch allows for quick switching between auto and manual focusing positions. Benefitting handling and use, a rotating tripod collar is featured for increased stability and easier switching between horizontal and vertical shooting orientations. Additionally, this lens accepts 46mm drop-in style filters via the included holder, and both UV and circular polarizer filters are included.

Prime super telephoto 500mm f/4.5 lens is designed for full-frame Pentax K-mount DSLRs, and can also be used on APS-C models where it provides a 750mm equivalent focal length.
Sporting an apochromatic design, two Extraordinary Low Dispersion (ELD) glass elements are used to reduce chromatic aberrations and color fringing throughout the aperture range in order to produce greater clarity and color fidelity.
A Super Multi-Layer Coating has been applied to minimize ghosting and flare when working in strong lighting conditions.
Internal focusing design limits the overall length of the lens during operation for more intuitive, controlled handling as well as faster performance.
A manual focus clutch lets you slide the focusing ring back or forth to quickly switch between manual and autofocus modes.
Nine-blade diaphragm contributes to a pleasing bokeh quality when working with selective focus and shallow depth of field techniques.
A fixed, rotating tripod collar offers increased stability when working from a tripod as well as intuitive switching between horizontal and vertical shooting orientations.
A rear drop-in slot enables the use of 46mm drop-in filters via the included filter holder, and both UV and circular polarizer filters are included.
Compatible with optional APO Tele Converters to further extend the reach of this super telephoto lens.
UPC: 085126184452
In the Box
Sigma 500mm f/4.5 EX DG APO Lens for Pentax K
  • Front Lens Cover
  • Rear Lens Cap
  • Lens Hood for 500mm f/4.5 EX Digital APO HSM Lens
  • A00090 Rear Filter Holder for Select Sigma Lenses
  • A00531 46mm Normal Rear UV Filter
  • A00530 46mm Rear Circular Polarizing Filter
  • 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 500mm
    Aperture Maximum: f/4.5
    Minimum: f/32
    Camera Mount Type Pentax K
    Format Compatibility 35mm Film / Full-Frame Digital Sensor
    APS-C
    Angle of View
    Minimum Focus Distance 13.12' (4 m)
    Maximum Reproduction Ratio 1:7.7
    Elements/Groups 11/8
    Diaphragm Blades 9
    Features
    Image Stabilization No
    Autofocus Yes
    Tripod Collar Yes Fixed - rotating
    Physical
    Filter Thread Drop-in: 46 mm
    Dimensions (DxL) Approx. 4.84 x 13.78" (123 x 350 mm)
    Weight 6.93 lb (3150 g)
    Packaging Info
    Package Weight 12.25 lb
    Box Dimensions (LxWxH) 18.4 x 11.3 x 10.8"

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