Description
The lens is a Sigma 18-250mm F3.5-6.3 Dc Os Hsm Macro Lens that is suitable for taking the following photos: weddings, events, portrait, nature and wildlife. It has a high performance and compact design with a great zoom ratio. It is made with Thermally Stable Composite material and has an Optical Stabilizer (OS) that is not available for Sony and Pentax. The lens hood, front and rear cap, and OS are all included.
Suitable for taking the following photos:
Weddings, events, portrait, nature and wildlife
High performance & compact with great zoom ratio
Made with Thermally Stable Composite material
Optical Stabilizer (OS) is not available for Sony and Pentax
Lens hood, front & rear cap
OS -OPTICAL STABILIZER
This function utilizes a built-in mechanism that compensates for camera shake. It dramatically expands photographic possibilities by alleviating camera movement when shooting by hand held camera.
HSM -QUIET & FAST AUTOFOCUSING
This lens uses a motor driven by ultrasonic waves to provide a quiet, high-speed AF.
DC - DC FOR DIGITAL
These are special lenses designed for APS-C size sensors so that the image circle matches the smaller size of the image sensor of most digital SLR cameras. Their personalised design gives these lenses the ideal properties for digital cameras, the compact and light weight construction is an added bonus.
The addition of the 18-250mm F3.5-6.3 DC Macro OS HSM speaks to Sigmas versatile product lineup with this multipurpose zoom lens that offers Optical Stabilization (OS)* and covers wide angle to telephoto to macro photography. It differs from Sigmas current 18-250mm F3.5-6.3 DC OS HSM lens with its even more compact size, its macro capability with a maximum magnification ratio of 1:2.9 and the use of Thermally Stable Composite (TSC) material currently used only by Sigma.
TSC, which is incorporated into the lens barrel and is often compared to polycarbonate, has a high degree of elasticity and exhibits little variation in its structure in extreme temperature conditions. This means that internal barrel expansion and contraction due to extreme temperature variations is less prevalent. TSC also contributes to the lens size reduction. The non-macro 18-250mm F3.5-6.3 without TSC weighs 22.2 ounces and is 3.1 by 4 inches in diameter, whereas the new macro lens is 16.6 ounces and 2.9 by 3.5 inches in diameter.
Sigma optimized this lens power arrangement by incorporating double-sided aspherical lenses and reexamining the design to achieve a more compact filter diameter. The lens has an approximate 13x high zoom ratio with a filter size of 62mm in diameter. Sigmas unique OS system, as well as one Special Low Dispersion (SLD) glass and three aspherical lens glasses, compensate for camera shake and enable correction of color aberration, respectively.
The new 18-250mm F3.5-6.3 DC Macro OS HSM lens is also equipped with Super Multi-Layer Coating to reduce flare and ghosting, a Hyper Sonic Motor (HSM) to ensure fast and quiet auto-focusing, and a rounded, seven-blade diaphragm to create an attractive round blur to the out of focus areas. The lens features a brass-made bayonet mount applied on the surface to reinforce strength for long-term use and enable high accuracy and solidity.
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