This Sigma 8mm F3.5 EX DG is a wide circular fisheye lens. The Sigma 8mm produces circular images with an angle of view of 180° when attached to a full-frame digital SLR or 35mm film SLR camera.
The Sigma 8mm F3.5 EX DG unusual lens could make an enjoyable and competitively significant addition to an optical arsenal. The Sigma 8mm visually distorts relative distance to put extra emphasis on a foreground subject, and its extreme barrel distortion makes rectilinear objects bow out as if they're ready to burst.
About average in size and weight by modern fisheye standards, the Sigma 8mm F3.5 EX DG lens is all metal. The nicely damped manual-focus ring turns smoothly. The new Sigma 8mm has a spring-loaded filter holder inside the lensmount that accepts gelatin filters that you cut with the help of a supplied template. It also has an unusual hood-like filter holder that slides over the front of the barrel, accepts standard 72mm filters, and has a felt lining to control flare and reflections. Because of the lens' extreme angle of view, using this filter holder causes marginal yet noticeable vignetting. And if you use a built-in flash, the Sigma 8mm lens casts a relatively large shadow. The Sigma 8mm lens features super multi-layer coating and Special Low Dispersion (SLD) glass provide excellent image quality for digital and film SLR cameras. The special fisheye design of the Sigma 8mm lens allows maximum creative expression. Full circle can only be captured with full frame 35mm format digital SLR and film SLR cameras.
Sigma 8mm F3.5 EX DG key features:
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