A unique approach to telephoto zoom design.
A unique design amongst telephoto zoom lenses. The EF 70-300mm f/4.5-5.6 DO IS USM incorporates a Diffractive Optical (DO) element that delivers compact size, low weight and superb image quality
Three-layer Diffractive Optical (DO) element
Just 9.99cm in length
High speed AF with manual focus override
Circular diaphragm for pleasing bokeh
Zoom ring lock
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