The lens is still pretty quick, and offers full-time manual focus override, but even the Olympus 9-18mm lens manages this trick, and the Pentax autofocus is much noisier.
It’s almost exactly the same size as the Canon 10-22mm, but a little heavier, and build quality is of a similarly high standard.
Although it’s quite light and feels balanced on a camera body like the EOS 450D or 500D, the lens is robust and well engineered.The UltraSonic Motor (USM) autofocus system proved incredibly f
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