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Sigma

Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Auto Focus Lens for Canon EOS Digital - USA Warranty

SKU: SG4528EOS MFR: 486101
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About the Sigma 4.5mm F/2.8

The first Circular Fisheye Lens exclusively for use with APS-C size digital SLR cameras... 4.5mm F2.8 EX DC Circular Fisheye HSM

This auto focus circular fisheye lens has an angle of view of 180 degrees in all directions. It is exclusively designed for digital SLR cameras with the APS-C size image sensor. When used in conjunction with digital SLRs with APS-C size image sensors, it produces circular image within the frame.

The F2.8 large aperture value produces a bright image in the viewfinder and allows photographers to take pictures in low light conditions, making it an ideal lens for Astrophotography and Aurora photography.

Due to the quantifiable angle/area relationship it produces, this lens can be used for scientific and arts applications such as solid angle measurements of cloud distribution over the sky or vegetation distribution of the forest.

The minimum focusing distance of 13.5 cm/5.3 inch and maximum magnification of 1:6 make It's particularly useful for close-up photography.

SLD,"Special Low Dispersion" glass provides effective compensation of chromatic aberration. Sigma's Super Multi-Layer Coating minimizes flare and ghosting. It is equipped with an inner focusing system that creates high definition and good image quality over the whole frame.

The HSM "Hyper Sonic Motor" ensures fast and quiet autofocusing and allows full-time manual focus override by rotation of the focus ring.



Sigma 4.5mm F/2.8 Includes

  • Front Cap Adapter
  • Lens Case
  • 1 Year International Warranty plus 3 Year Sigma U.S.A. Extended Warranty (Total Warranty is 4 Years from Date of Purchase)

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Sigma 4.5mm F/2.8 Features

  • The first 180 degree circular fisheye lens designed specifically for APS-C size digital SLR cameras
  • Fast F2.8 maximum aperture making it ideal for low light photography
  • Minimum focusing distance of 13.5cm and a maximum magnification of 1:6
  • SLD glass minimizes color aberration
  • Equipped with HSM with full-time manual focus override
  • Equisolid angle projection method is possible for art and scientific use

Sigma 4.5mm F/2.8 Specifications

Type 4.5mm Circular Fisheye for use with APS-C size Canon Digital SLRs
Minimum Focusing Distance: 5.3in / 13.5cm
Maximum Aperture F2.8
Minimum Aperture F22
Angle of View 180°
Lens Construction 9 Groups 13 Elements
Maximum Magnification Ratio 1:6
Filter Diameter Insertion-type gelatin filter into rear of the lens
Diaphragm Blades 6pcs
Weight: 16.6oz / 470g
Dimensions: Diameter x Length: 3" x 3.1" / 76.2mm x 77.8mm
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