The versatile, multipurpose Sigma 18-250mm F3.5-6.3 DC Macro OS HSM covers a huge range of focal lengths, from wide angle to telephoto, and even offers macro capability. It is even more compact than its predecessor, and utilizes new technology such as Sigma's Thermally Stable Composite (TSC) material. Sigma’s unique Optical Stabilization (OS) system compensates for camera shake, and one Special Low Dispersion (SLD) glass in conjunction with three aspherical lens glasses enables correction of color aberration.
TSC is extremely elastic and very stable in extreme temperature conditions, which reduces the amount of internal barrel expansion and contraction in extreme temperatures, and it also contributes to the lens’ reduction in size.
Ghosting and flare in this 18-250mm F3.5-6.3 DC Macro OS HSM lens are reduced thanks to a Super Multi-Layer Coating, and fast, quiet auto-focusing are delivered by Sigma's Hyper Sonic Motor (HSM). A rounded, seven-blade diaphragm creates an attractive, round blur to out of focus areas. Finally, 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.
SIGMA DC Lenses
Optimized for DSLRs with APS-C size image sensors, these lenses leverage original technology fostered in the development of Sigma SD series cameras. The configuration of lens elements and the lens coatings represent the culmination of decades of optical engineering experience. The result is truly excellent performance in a compact, lightweight format that offers outstanding flexibility to the serious photographer.
The HSM (Hyper Sonic Motor) ensures a silent, high-speed AF function. By optimizing the AF algorithm, smoother AF is achieved. Also, this lens offers full-time MF by rotating the focus ring of the lens while auto focusing. Without changing the AF/MF Focus Mode Switch, it allows faster focus adjustment.
More Reasons to Choose a SIGMA Lens:
Sigma inspects each and every lens with their proprietary Foveon-based A1 MTF measuring system, which guarantees every lens meets their high optical standards.
Made in Japan craftsmanship is what makes SIGMA lenses high-performance, high-quality, and high-end.
The SIGMA USB DOCK accessory and exclusive software let you personalize the specification of your new Sigma lenses.
Sigma stands behind its lenses with a 7 year international warranty. It guarantees your Sigma lens against manufacturing defects for seven years from the date of the original purchase. 7 YEAR WARRANTY