Sigma 10-20Mm F3.5 Ex Dc Hsm Lens For Canon Pentax Lenses Focus limit switch that can

Focus limit switch that can lock the focus out of the closest focus making it focus faster when used as a moderate telephoto lens that is excellent for portraits as well

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Sigma 10-20Mm F3.5 Ex Dc Hsm Lens For Canon Pentax Lenses Focus limit switch that canWith an F3. 5 aperture throughout the entire zoom range, the 10 20mm F3. 5 is perfect for low light photography. Sigma wide angle lenses accentuate the relationship of subjects within a photo and thus become an important creative tool. This Sigma fast fixed aperture makes photography easier for the photographer who wishes to precisely control their depth of field and also for working with non TTL Flash systems. Super Multi layer coating reduces flare