Ricoh has introduced a brand new wide-angle zoom lens that’s labeled beneath its “Star” sequence optics: the HD Pentax-DA 16-50mm f/2.8ED PLM AW lens. Ricoh says it guarantees the very best imaging efficiency obtainable and is designed to be used on Okay-mount DSLRs.
This new lens can be utilized on each APS-C and full-frame Pentax cameras. When connected to an APS-C crop sensor digicam, it has an equal focal size of 24.5-76.5mm.
The corporate says that the brand new lens incorporates a brand new optical system and for the primary time in a large-aperture Pentax lens, what it calls a complicated “pulse motor” (PLM) that Ricoh claims will guarantee easy, high-speed, and high-precision autofocus with minimal noise. Moreover, Ricoh says the lens has been fine-tuned to nonetheless present glorious guide focus operation and features a “quick-shift” focus system that permits it to rapidly swap between autofocus and guide focus.
As a be aware, the PLM is a type of autofocus motor developed by Pentax Ricoh that different producers name a “stepping motor.”
The HD Pentax-DA 16-50mm f/2.8ED PLM AW lens is constructed of 16 parts in 10 teams, encompasses a nine-bladed round diaphragm, has a most aperture of f/22, a minimal focusing distance of 11.76 inches (0.3 meters), and has a entrance filter diameter of 77mm.
Pentax “Star” sequence lenses are designed by Ricoh to supply significantly improved resolving energy to accommodate high-performance digital cameras each now and into the longer term. On this specific case, Ricoh says that this lens reduces varied aberrations to a minimal to ship sharp, clear pictures not solely in the midst of the body but in addition out to the sides of a picture. It makes use of one extra-low dispersion component, one anomalous glass optical component, and two extra-low dispersion aspherical parts to scale back chromatic aberration over the whole zoom vary.
Ricoh says that these optical parts mix with what it calls a “high-grade, multi-layer excessive definition coating” which the corporate says reduces the typical reflectance of the seen spectrum to lower than 50% of standard multi-layer coatings. In brief, Ricoh says it successfully minimizes flare and ghosting of pictures even in advanced lighting situations whereas additionally delivering excessive resolving energy and glorious distinction.
The brand new autofocus PLM engine is connected to a lighter and extra compact focus lens group and Ricoh says it is ready to drive it easily, rapidly, precisely, and with minimal noise. The PLM is also used within the lens’s electromagnetic diaphragm mechanism which Ricoh says permits it to easily observe focus mixed with “flawless” publicity management whereas additionally lowering “annoying” noise that’s generated by focus and diaphragm management operations usually present in video functions. Pentax says the combination of each methods permits the lens — when connected to a digicam just like the Okay-3 Mark III — to guarantee high quality video seize in environments which have quickly altering lighting situations. Not all Pentax cameras assist digital diaphragm management, although and this characteristic is simply obtainable on the newest firmware for the Pentax Okay-3 Mark III, Okay-3 II, Okay-3, KP, Okay-70, Okay-50, Okay-S2, Okay-S1, Okay-1 Mark II, or Okay-1.
The HD Pentax-DA 16-50mm f/2.8ED PLM AW lens is designed to be dustproof and weather-resistant, so when mixed with an equally weather-resistant Pentax digicam, the system can carry out in rain or mist in addition to areas vulnerable to splashing water or flying mud.
The HD Pentax-DA 16-50mm f/2.8ED PLM AW shall be avaialble in August of 2021 for $1,400.