• Sigma AF 4.5mm f2.8 EX DC Circular Fisheye HSM
  • Sigma AF 4.5mm f2.8 EX DC Circular Fisheye HSM
  • Sigma AF 4.5mm f2.8 EX DC Circular Fisheye HSM

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

Sigma AF 4.5mm f/2.8 EX DC Circular Fisheye HSM is a auto focus fisheye lens for aps-c cameras.

Optical design

It is a ring-type ultrasonic motor designed to provide quick and silent focusing. Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle. Bright lens thanks to the high aperture value Full frame equivalent focal length is 6.75 mm.

Phisical caracteristics

Weights 470 grams so plan ahead, carry only if really necessary. 78 mm long, requires consideration if you want to carry in the camera bag.

Description

Specification

Blades6
Length (mm)78
Min focus (m)0.135
Weight (g)470
Aperture2.8/22
Focal Length (mm)4

Overall rating

3.08
based on 3 reviews

bokeh (1.5)
1.5/5

mechanical quality (4.67)
4.67/5

optical quality (4.25)
4.25/5

usability (3.75)
3.75/5

value (1.25)
1.25/5

Alternatives

1 review for Sigma AF 4.5mm f/2.8 EX DC Circular Fisheye HSM

  1. allphotolenses.com

    3.0 allphotolenses.com user rated as 3.08/5

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