This circular fisheye lens produces circular images with
an angle of view of 180° when attached to a full-frame digital SLR or
35mm film SLR camera. It has a fast maximum aperture of F3.5 and a
minimum focusing distance of 13.5cm (5.3"). Sigma’s super multi-layer
coating and Special Low Dispersion (SLD) glass provide excellent image
quality for digital and film SLR cameras. The special fisheye design
allows maximum creative expression.
*Full circle can only be captured with full frame 35mm format digital SLR and film SLR cameras.
Auto-focus system
This
circular fisheye lens produces circular images with an angle of view of
180°and also incorporates an auto focus system to achieve accurate
focusing that might be difficult through the camera`s viewfinder due to
the extremely large depth of field.
F3.5 maximum aperture
This lens is perfectly suited for low light conditions indoors or at dusk.
Close-up Photography
This
circular fisheye lens has a minimum focusing distance of 13.5cm (5.3")
and a maximum magnification of 1:4.6 making it particularly useful for
close-up photography.
Excellent optical performance
Special Low Dispersion (SLD) glass offer effective compensation of color aberration.
Reduction of flare and ghosting
Sigma’s
super multi-layer lens coating reduces flare and ghosting, a common
problem with digital cameras and also creates an optimum color balance.
An ideal lens for scientific applications
Due
to the quantifiable angle/area relationship it produces, this lens can
be used for scientific applications such as solid angle measurements of
cloud distribution over the sky, or vegetation distribution of the rain
forest canopy.
Gelatin Filter Holder
A holder at the rear of the lens accepts gelatin filters.