Ricoh Imaging has introduced the HD Pentax-DA * 16-50mmF2.8ED PLM AW KAF4 mount for use with APS-C DSLR cameras.
Standard zoom lens with constant f / 2.8 maximum aperture outperforms comparable smc model Pentax-DA * 16-50mmF2.8ED AL[IF]SDM released since 2007. One of the advantages of the novelty is the pulse drive automatic focusing (PLM), first used in a high-aperture zoom lens. According to the manufacturer, it provides fast and quiet focusing. Of course, the lens also supports manual focus. Electromagnetic iris control maintains a constant exposure during video recording. The lens barrel is dust and splash resistant.
Lens specifications HD Pentax-DA * 16-50mmF2.8ED PLM AW:
- focal length – 16-50 mm (EGF 24.5-76.5 mm);
- aperture – f / 2.8-f / 22;
- optical design – 16 elements in 10 groups, including one ED element, one anomalous refractive element and two aspherical ED elements;
- angle of view – 83.0 ° –31.5 °;
- the minimum focusing distance is 0.3 m;
- the maximum magnification is 0.24x;
- the number of aperture blades – 9 (rounded);
- filter installation size – 77 mm;
- diameter – 84 mm;
- length – 117 mm;
- weight – 712 g (with a hood – 750 g).
The lens should go on sale in August 2021 at the manufacturer’s suggested retail price of $ 1,400. The kit includes a lens hood PH-RBN77, covers and case.
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