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8mm F3.5 EX DG CIRCULAR FISHEYE

Available mounts

  • SIGMA SA-mount
  • Canon EF mount
  • Nikon F mount
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  • Camera Type

    DSLR

  • Corresponding Mount

    SIGMA SA-mount, Canon EF mount, Nikon F mount

  • Sensor Format

    Full-frame [DG]

  • Lens Construction

    11 elements in 6 groups

  • Angle of View

    180°

  • Number of Diaphragm Blades

    6 Blades

  • Minimum Aperture

    F22

  • Minimum Focusing Distance

    13.5cm

  • Maximum Magnification Ratio

    1:4.6

  • Filter Size

    Rear (Gelatin filter)

  • Dimensions (Diameter × Length)

    ⌀73.5mm × 68.6mm / ⌀2.9in. × 2.7in.

    *The length of a lens is measured from the filter surface to its mount.

  • Weight

    400g / 14.1oz.

  • Supplied Accessories

    Lens case

  • Mount / Product Barcode

    SIGMA SA-mount：00-85126-48540-5 (discontinued)

    Canon EF mount：00-85126-48527-6 (discontinued)

    Nikon F mount：00-85126-48559-7 (discontinued)

  • Camera Compatibility

    LINK

  • * For Sigma SA mount
    * Nikon F mount do not have an aperture ring, therefore depending on Camera model some functions may not work.

Lens construction

SLD glass

MTF Chart

The MTF (Modulation Transfer Function) is one of the measurements for evaluating a lens’ performance, and it shows how faithfully the contrast of the subject can be reproduced on the image plane. The horizontal axis shows the image height (distance from the center of the image in mm) and the vertical axis shows the contrast value (maximum value is 1).
The closer the 10 line pairs/mm curve is to 1, the higher the contrast and clarity of the lens is, and similarly, the closer the 30 line pairs/mm curve is to 1, the better the resolution and sharpness of the lens is.

*The MTF chart depicts the result at the wide-open aperture.
*For mirrorless lenses that support distortion correction, the horizontal axis shows the image height equivalent to when an L-Mount lens is attached to a Sigma L-Mount camera with distortion correction applied. (The effect of distortion correction may differ depending on the mount and camera used.)
*The spatial frequency indicates the variation on the image plane before distortion correction is performed.

  • Spatial frequency

    S:Sagittal Line

    M:Meridional Line

  • 10lp/mm

  • 30lp/mm

Diffraction MTF

Supplied Accessories