The HD Pentax - D FA 150-450mm 4.5-5.6 ED DC AW is, quite obviously, an absolute unit of a super-tele zoom lens. It provides a powerful degree of reach on a full-frame camera, even more so on Pentax’s APS-C format body, equivalent to 225-675mm. The build quality is superb and although it’s weighty at 2,000g, it isn’t really all that much heavier than Pentax’s 70-200mm f/2.8 zoom.
There’re plenty of autofocus bells and whistles, with both auto and manual priority ‘Quick Shift’ modes, plus an AF preset facility and four customisable buttons around the middle of the lens. These can be configured to act as AF-on or AF-hold buttons, or to select a previously stored focus distance.
Other attractions include a tough, weather-sealed construction, HD coatings to improve light transmittance and reduce ghosting and flare, and a ‘super protect’ coating on the front element. It is, without a shadow of a doubt, a very nice piece of glass indeed.
This copy is in excellent mechanical, optical, and cosmetic condition, complete with both caps, hood, and bag.
Buy it, shoot it, love it.