slrgear.com says of this lens: "At the end of the day, the Sigma 150mm f/2.8 macro seems to offer the best bang of just about anything in its focal length/aperture range. If you're interested in shooting really close-up macro, yet with a reasonable working range, the Sigma 150mm f/2.8 looks to be a really excellent choice."
This large aperture telephoto macro lens enables you to shoot up to 1:1 life size close-ups. Its large F2.8 aperture makes it an ideal lens for digital SLR as well as film SLR cameras. Two Special Low Dispersion (SLD) glass elements control various color aberrations and assure high image quality. Super Multi Coating gives superb color performance whilst cutting down flare and ghost. Its compact, yet advanced, construction has an overall length of Length 137mm, maximum diameter of 79.6mm, filter size of 72mm and weight of 895g
Lens Constructon: 16 Elements in 12 groups Angle of View: 16.4 degrees Min Aperture: F22 Min Focusing distance: 38cm Max Magnification: 1:1 Filter size: 72mm Weight: 895g Available for: Sigma, Canon, Nikon...and soon Four Thirds
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