Pentax's long wildlife zoom: 150-450mm on full frame (225-675mm equivalent on APS-C) with a DC motor, a three-way focus limiter, a tripod mount and dust/weather sealing. 2kg — a monopod lens.
Select up to 2 cameras to compare against the HD D FA 150-450mm f/4.5-5.6 ED DC AW. It's always pinned as the baseline.
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