Additionally, a brass bayonet affords improved mounting accuracy and rigidity. Constructed using a Thermally Stable Composite (TSC) material for greater precision and use in wide temperature variations. Photography Blog posted their review of three Sigma prime lenses, the Sigma 16mm f/1.4 DC DN Contemporary, Sigma 30mm f/1.4 DC DN Contemporary, and Sigma 56mm f/1.4 DC DN Contemporary lenses for the EF-M mount.Rounded nine-blade diaphragm contributes to a smooth and pleasing bokeh quality.A stepping AF motor benefits both photographers and videographers with its fast, precise, and near-silent performance.A Super Multi-Layer Coating has been applied to lens elements in order to minimize lens flare and ghosting and contribute to producing contrast-rich and color-neutral imagery, even in backlit conditions. ![]()
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