This latest version of the Sigma Macro 150mm F2.8 EX DG HSM boasts Optical Stabilization (OS) which is critical to equipment sporting this focal range & is now splash-proof. Offering the latest optical design technology this lens remains a large aperture medium macro lens ideal for shooting the smaller things in our world that exists virtually unseen. A macro lens is one which will focus on a subject close enough to render it "life-size" on the image plane in your camera. It also has a "flat" field" front lens element so that it can shoot images of flat objects such as artwork or postage stamps & be tack sharp all the way across the image. With HSM (Hyper-Sonic Motor) a quiet & high-speed auto focus is ensured. It provides extremely high optical performance from infinity to 1:1 Macro. Three SLD (Special Low Dispersion) glass elements provide optimum color correction & sharpness throughout the entire range & Super Multi-layer coating reduces flare & ghosting. It has superior peripheral brightness & provides sharp & high contrast images even at maximum apertures. The OS offers the use of shutter speeds Approx. 4 stops slower than would otherwise be possible. It is also compatible with Sigma APO Tele Converters. Ideally suited for taking pictures of insects or other small creatures, but it is also the perfect focal length for facial portraits rendering the best perspective of the human face. This greater distance also allows the photographer more flexibility in lighting the subject with natural light reflectors. So don't miss the tiny insects, flowers of the world or the details in a stamp or coin collection or a piece of embroidery all of which are seldom noticed but offer a fascinating world if you look closely enough. Capture them with the Sigma Macro 150mm F2.8 EX DG OS HSM APO Macro. ...

This is the worlds first 180 mm macro lens incorporating a magnification ratio of 1:1 & a large maximum aperture of F2.8. It benefits from Sigmas original Optical Stabilizer function & the wide F2.8 aperture allows faster shutter speeds for narrow depth of field, enabling photographers to emphasize the subject. Three FLD ("F" Low Dispersion) glass elements provide excellent correction for color aberrations. This lens incorporates Sigmas floating inner focusing system. This minimizes aberrations which occur as shooting distances change, & enables stable rendering of the image from infinity to 1:1 magnification. The super multi-layer coating reduces flare & ghosting & provides sharp & high contrast images even at the maximum aperture. Equipped with Sigmas own propriety OS (Optical Stabilizer) system, this lens offers the use of shutter speeds Approx. 4 stops slower than would otherwise be possible, enabling handheld close-up photography. The incorporation of HSM (Hyper Sonic Motor) ensures quiet & high speed autofocus as well as full-time manual focus capability. This lens has a rounded 9 blade diaphragm creating an attractive blur to the out of focus areas of the image. At 1:1 magnification, this lens has a focusing distance of 18.5-inch, which is a greater working distance than shorter focal length macro lenses. This is advantageous when taking pictures of highly sensitive subjects such as butterflies & insects. Attaching Sigmas optional Tele Converters allows photographers to shoot with an even greater working distance or with a magnification ratio larger than 1:1. ...

This is the world's first 180 mm macro lens incorporating a magnification ratio of 1:1 & a large maximum aperture of F2.8. It benefits from Sigma's original optical stabilizer function & the wide F2.8 aperture allows faster shutter speeds for narrow depth of field, enabling photographers to emphasize the subject. Three FLD ("F" Low Dispersion) glass elements provide excellent correction for color aberrations. This lens incorporates Sigma's floating inner focusing system. This minimizes aberrations which occur as shooting distances change, & enables stable rendering of the image from infinity to 1:1 magnification. The super multi-layer coating reduces flare & ghosting & provides sharp & high contrast images even at the maximum aperture. Equipped with Sigma's own propriety OS (Optical Stabilizer) system, this lens offers the use of shutter speeds Approx. 4 stops slower than would otherwise be possible, enabling handheld close-up photography. The incorporation of HSM (Hyper Sonic Motor) ensures quiet & high speed autofocus as well as full-time manual focus capability. This lens has a rounded 9 blade diaphragm creating an attractive blur to the out of focus areas of the image. At 1:1 magnification, this lens has a focusing distance of 18.5-inch, which is a greater working distance than shorter focal length macro lenses. This is advantageous when taking pictures of highly sensitive subjects such as butterflies & insects. ...

This is the world's first 180 mm macro lens incorporating a magnification ratio of 1:1 & a large maximum aperture of F2.8. It benefits from Sigma's original optical stabilizer function & the wide F2.8 aperture allows faster shutter speeds for narrow depth of field, enabling photographers to emphasize the subject. Three FLD ("F" Low Dispersion) glass elements provide excellent correction for color aberrations. This lens incorporates Sigma's floating inner focusing system. This minimizes aberrations which occur as shooting distances change, & enables stable rendering of the image from infinity to 1:1 magnification. The super multi-layer coating reduces flare & ghosting & provides sharp & high contrast images even at the maximum aperture. Equipped with Sigma's own propriety OS (Optical Stabilizer) system, this lens offers the use of shutter speeds Approx. 4 stops slower than would otherwise be possible, enabling handheld close-up photography. The incorporation of HSM (Hyper Sonic Motor) ensures quiet & high speed autofocus as well as full-time manual focus capability. This lens has a rounded 9 blade diaphragm creating an attractive blur to the out of focus areas of the image. At 1:1 magnification, this lens has a focusing distance of 18.5-inch, which is a greater working distance than shorter focal length macro lenses. This is advantageous when taking pictures of highly sensitive subjects such as butterflies & insects. ...

This is the world's first 180 mm macro lens incorporating a magnification ratio of 1:1 & a large maximum aperture of F2.8. It benefits from Sigma's original Optical Stabilizer function & the wide F2.8 aperture allows faster shutter speeds for narrow depth of field, enabling photographers to emphasize the subject. Three FLD ("F" Low Dispersion) glass elements provide excellent correction for color aberrations. This lens incorporates Sigma's floating inner focusing system. This minimizes aberrations which occur as shooting distances change, & enables stable rendering of the image from infinity to 1:1 magnification. The super multi-layer coating reduces flare & ghosting & provides sharp & high contrast images even at the maximum aperture. Equipped with Sigma's own propriety OS (Optical Stabilizer) system, this lens offers the use of shutter speeds Approx. 4 stops slower than would otherwise be possible, enabling handheld close-up photography. The incorporation of HSM (Hyper Sonic Motor) ensures quiet & high speed autofocus as well as full-time manual focus capability. This lens has a rounded 9 blade diaphragm creating an attractive blur to the out of focus areas of the image. At 1:1 magnification, this lens has a focusing distance of 18.5-inch, which is a greater working distance than shorter focal length macro lenses. This is advantageous when taking pictures of highly sensitive subjects such as butterflies & insects. ...

SIGMA 28mm f 1.8 EX DG Aspherical Macro is one of several EX-Series lenses. This lens has a fast F1.8 maximum aperture, with macro-focusing capability. It features minimum focusing, down to 20cm/7.9 inches (reproduction ratio 1: 2.9). The iris diaphragm has 9 diaphragm blades to obtain beautiful out of focus image. It incorporates the floating focus system & the use of two aspherical lens elements to minimize distortion, spherical aberration & astigmatism. The lens incorporates minimum vignetting optical construction in order to obtain adequate peripheral brightness with open aperture. Internal focus system of the lens eliminates front lens rotation, thus allowing the use of a Perfect Hood & easy use of polarizing filters. The lens also incorporates a dual-focus mechanism. It is easy to hold the lens, since focusing ring does not rotate during auto-focus, & yet provides adequate torque of the focusing ring during manual focusing of the lens. The lens materials used in this lens are lead & arsenic free ecological glass. ...

SIGMA 28mm f 1.8 EX DG Aspherical Macro is one of several EX-Series lenses. This lens has a fast F1.8 maximum aperture, with macro-focusing capability. It features minimum focusing, down to 20cm/7.9 inches (reproduction ratio 1: 2.9). The iris diaphragm has 9 diaphragm blades to obtain beautiful out of focus image. It incorporates the floating focus system & the use of two aspherical lens elements to minimize distortion, spherical aberration & astigmatism. The lens incorporates minimum vignetting optical construction in order to obtain adequate peripheral brightness with open aperture. Internal focus system of the lens eliminates front lens rotation, thus allowing the use of a Perfect Hood & easy use of polarizing filters. The lens also incorporates a dual-focus mechanism. It is easy to hold the lens, since focusing ring does not rotate during auto-focus, & yet provides adequate torque of the focusing ring during manual focusing of the lens. The lens materials used in this lens are lead & arsenic free ecological glass. ...

SIGMA 28mm f 1.8 EX DG Aspherical Macro is one of several EX-Series lenses. This lens has a fast F1.8 maximum aperture, with macro-focusing capability. It features minimum focusing, down to 20cm/7.9 inches (reproduction ratio 1: 2.9). The iris diaphragm has 9 diaphragm blades to obtain beautiful out of focus image. It incorporates the floating focus system & the use of two aspherical lens elements to minimize distortion, spherical aberration & astigmatism. The lens incorporates minimum vignetting optical construction in order to obtain adequate peripheral brightness with open aperture. Internal focus system of the lens eliminates front lens rotation, thus allowing the use of a Perfect Hood & easy use of polarizing filters. The lens also incorporates a dual-focus mechanism. It is easy to hold the lens, since focusing ring does not rotate during auto-focus, & yet provides adequate torque of the focusing ring during manual focusing of the lens. The lens materials used in this lens are lead & arsenic free ecological glass. ...

Optimized image quality for Digital SLR cameras. Floating Internal Focusing (FIF) system minimizes the aberration in entire focusing range. Super Multi Layer (SML) coating reduces the ghost caused by reflections from the surface of digital image sensors. Minimum aperture of F/45 provides greater depth of field (F45 for Sigma, Canon & Konica Minolta mounts & F32 for Nikon & Pentax mounts). A screw-in hood for convenient use of circular polarizing filters ...

This lens would have an equivalent field of view of a 105mm telephoto macro lens when used on digital SLR cameras with an APS-C size image sensor. The narrow angle of view is a great aid for simplifying backgrounds & shallow depth of field makes it easier to handle the composition. ...