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<http://schema.org/description>
"Sigma has announced a new telephoto lens to add to its DG range with the 135 - 400mm F4.5-5.6 optic. The multi-layered-coated lens, designed to reduce flare and ghosting, has SLD (Special Low Dispersion) glass elements that provide correction for all types of aberration throughout the entire zoom range. Its rear focus system ensures high performance stability and ease of use. The price will be £479.99."
<https://www.dpreview.com/articles/5987787552/sigma-135-400mm>