The 18-250mm F3.5-6.3 DC Macro OS HSM is a multipurpose zoom lens that offers Optical Stabilization (OS) and covers wide angle to telephoto to macro photography. It differs from Sigma's 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. Sigma's 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.
Return and Tax Policies
If you are not satisfied with your order and wish to initiate a return, please contact us via firstname.lastname@example.org. All returns must be accompanied with an RA number assigned by a Sixth Avenue Electronics Express representative. Products must be in Brand New condition, including the manufacturer's box with all included accessories. We will not accept any returns without the recorded serial numbers and upc numbers intact on the box. Returned items will be subject to a restocking fee of 5%-20% of the total price. Shipping price is not refundable. The buyer is responsible for shipping charges to return an item back to us. If an item arrives Damaged, please contact us immediately. We will file a claim with the shipper, and ship a replacement as soon as the claim is approved (between 1-6 business days). We hope items never arrived damaged, but unfortunately it does infrequently occur. We thank you in advance for working with us. Certain products are not eligible to be returned at all. Those include hygienic and personal care products (e.g shavers), a/v equipment, and special order products.
New Jersey residents are subject to sales tax.