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{{Infobox photographic lenses
{{Infobox photographic lenses
| name = Sigma 8mm f/3.5 EX DG
| name = Sigma 8mm f/3.5 EX DG circular fisheye
| image = Sigma8mmF35EXDG-001.jpg
| image = Sigma8mmF35EXDG-001.jpg
| caption =
| caption =
| maker = [[Sigma Corporation]]
| maker = [[Sigma Corporation]]
| feat-is = none
| feat-is = n
| feat-usm = n/a
| feat-usm = n
| feat-sbf = n/a
| feat-sbf = n
| feat-macro = n/a
| feat-macro = n
| feat-special = n/a
| feat-special = circular fisheye
| application = n/a
| application =
| type = circular [[fisheye lens]]
| type = circular [[fisheye lens]]
| flength = 8 mm
| flength = 8mm
| flength-eq =
| flength-eq =
| fov = 180 degrees
| fov = 180 degrees
Line 18: Line 18:
| elements = 11
| elements = 11
| diaphragm = 6
| diaphragm = 6
| close-dist = 13.5 cm
| close-dist = 13.5cm
| max-mag = 1:4.6
| max-mag = 1:4.6
| max-diameter = 73.5 mm
| max-diameter = 73.5mm
| max-length = 68.6 mm
| max-length = 68.6mm
| weight = 400 g ''(14.0 oz)''
| weight = 400g ''(14.0oz)''
| filter = rear (Gelatin filter)
| filter = rear (Gelatin filter)
| hood =
| hood = none
| case =
| case =
| av-horiz =
| av-horiz = 180
| av-vert =
| av-vert = 180
| av-diag =
| av-diag = 180
| start =
| start =
| stop =
| stop =
| replace =
| replace =
| msrp = $999.99
| msrp = $1230
| category = Sigma lenses
| category = Sigma lenses
}}
}}


The '''Sigma 8mm f/3.5 EX DG''' is a [[photographic lens]] introduced on [[9 August]], [[2006]]. It is manufactured by the [[Sigma Corporation]] and is meant to replace the previous [[Sigma 8mm f/4 EX DG lens|8mm f/4 EX DG lens]].
The '''Sigma 8mm f/3.5 EX DG''' is a [[photographic lens]] introduced on [[9 August]], [[2006]]. It is a circular [[fisheye lens]], designed to project a 180-degree field of view in all directions onto a circular image when used on a full-frame camera. The lens is available in [[Canon EF lens mount|Canon]], [[Nikon F-mount|Nikon]], and [[Sigma SA mount|Sigma]] mounts.


== External links ==
== External links ==

Revision as of 20:27, 21 August 2009

Sigma 8mm f/3.5 EX DG circular fisheye
MakerSigma Corporation
Technical data
Typecircular fisheye lens
Focal length8mm
Crop factor180 degrees
Aperture (max/min)f/3.5
Close focus distance13.5cm
Max. magnification1:4.6
Diaphragm blades6
Construction11 elements in 6 groups
Features
Short back focusNo No
Ultrasonic motorNo No
Lens-based stabilizationNo No
Macro capableNo No
Unique featurescircular fisheye
Physical
Max. length68.6mm
Diameter73.5mm
Weight400g (14.0oz)
Filter diameterrear (Gelatin filter)
Accessories
Lens hoodnone
Angle of view
Horizontal180
Vertical180
Diagonal180
Retail info
MSRP$1230 USD

The Sigma 8mm f/3.5 EX DG is a photographic lens introduced on 9 August, 2006. It is a circular fisheye lens, designed to project a 180-degree field of view in all directions onto a circular image when used on a full-frame camera. The lens is available in Canon, Nikon, and Sigma mounts.


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