Sigma EX 8mm f/3,5 DG Fisheye Specifications

Next to each category and value there are articles describing it all, giving you a deeper understanding on every area so you can better understand the strengths and weaknesses.

Product
Name Sigma EX 8mm f/3,5 DG Fisheye

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Manufacturer Sigma
Release Date and Price
Release Year 2006
MSRP 1230 USD
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Lens Type
Lens Type Wide Angle Lenses
Wide Angle Lenses with Fisheye-character
Zoom or Prime Prime lens (no possibility to zoom)
Mount and Compatibility
Mount Canon (see compatible cameras)
Nikon (see compatible cameras)
Compatibility Works on all sensors (see compatible cameras)
Focus
Closest Focusing Distance 13 cm
Autofocus (AF) Yes
Built-in autofocus (AF) motor Canon
Nikon
Nikon; for autofocus the camera has to have a built-in autofocus (AF) motor
See a list of compatible cameras
Aperture
Maximum aperture f/3,5
Optics
Elements: 11 elements / 6 groups
Focal Length 8 mm

Depending on which camera this lens is used the focal length can seem different. This is because different camera sensors can have a slight crop factor and the focal length will be equivalent to:
  • 8 mm on Canon FF, Full frame
  • 10 mm on Canon APS-H
  • 13 mm on Canon APS-C
  • 8 mm on Nikon FX, Full frame
  • 12 mm on Nikon DX, APS-C
See list, camera for camera

Read more on the cameras impact on the perceived focal length
Physical
Diameter 73 mm
Length 68 mm
Weight 400 g (see the total weight, camera+lens)
Other
Image stabilization No
Filter Built-in Filter Holder
Lens Hood Not included
Tripod mount No (Read more)
Weather sealing No