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Meyer-Optik Gorlitz Primoplan 58mm f/1.9 II Lens for Pentax K

BH #MEMOG58192PK • MFR #MOG5819IIPK
Meyer-Optik Gorlitz Primoplan 58mm f/1.9 II Lens for Pentax K
Key Features
  • K-Mount Lens/Full-Frame Format
  • Aperture Range: f/1.9 to f/22
  • Central Dispersion & Converging Elements
  • Schott Glass, O'Hara Anti Reflex Coating
Based on a classic optical design from more than 80 years ago, the Primoplan 58mm f/1.9 II from Meyer-Optik Gorlitz is a unique slightly longer-than-normal-length prime lens for Pentax K-mount cameras. Working in conjunction with the unique optical design is a bright f/1.9 maximum aperture, along with a manual focus design, that benefits the use of selective focus and shallow depth of field techniques. The aperture setting, along with a 14-blade diaphragm, also greatly affects the quality of bokeh, with wide-open settings generating a distinct swirly bokeh quality, and stopped down settings producing a more detailed, yet smooth blur. In regard to the optical layout, a simple five-element, four-group construction is featured, along with the use of Schott glass to produce a high degree of clarity. An O'Hara Anti Reflex Coating is also applied to reduce surface reflections, minimize flare, and increase contrast. Additionally, the lens features an anodized aluminum housing that is durable, lightweight, and contributes to smooth, silent focusing performance.
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Meyer-Optik Gorlitz Primoplan 58mm f/1.9 II Overview

Based on a classic optical design from more than 80 years ago, the Primoplan 58mm f/1.9 II from Meyer-Optik Gorlitz is a unique slightly longer-than-normal-length prime lens for Pentax K-mount cameras. Working in conjunction with the unique optical design is a bright f/1.9 maximum aperture, along with a manual focus design, that benefits the use of selective focus and shallow depth of field techniques. The aperture setting, along with a 14-blade diaphragm, also greatly affects the quality of bokeh, with wide-open settings generating a distinct swirly bokeh quality, and stopped down settings producing a more detailed, yet smooth blur. In regard to the optical layout, a simple five-element, four-group construction is featured, along with the use of Schott glass to produce a high degree of clarity. An O'Hara Anti Reflex Coating is also applied to reduce surface reflections, minimize flare, and increase contrast. Additionally, the lens features an anodized aluminum housing that is durable, lightweight, and contributes to smooth, silent focusing performance.

Slightly longer-than-normal-length prime is designed for full-frame-format Pentax K-mount cameras, however can also be used on APS-C-format models where it will provide an 87mm equivalent focal length.
Fast f/1.9 maximum aperture allows for extensive control over depth of field, for working with selective focus techniques, and also benefits working in low-light conditions.
The optical design uses a five-element, four-group layout in which the central dispersion element is surrounded by two groups of converging elements, and the rear element has a biconvex converging design to produce notable smoothness and clarity.
Schott glass is used for high clarity and contrast, and each of the elements feature an O'Hara Anti Reflex Coating to suppress lens flare and ghosting for color neutrality.
Manual focus design permits working with subjects as close as 2' away.
Fourteen diaphragm blades contribute to a smooth and distinct bokeh quality, which can be greatly adjusted by varying the aperture setting. When working at the maximum aperture, a unique swirly quality is present in out-of-focus elements, and when working with stopped down settings, a creamier bokeh quality is produced with greater detail in the blurred regions.
Front 52mm filter thread is consistent throughout the Meyer-Optik Gorlitz version II lens series.

Meyer-Optik Gorlitz Primoplan 58mm f/1.9 II Specs

Focal Length58mm
Maximum Aperturef/1.9
Minimum Aperturef/22
Lens MountPentax K
Lens Format CoverageFull-Frame
Angle of View40.9°
Minimum Focus Distance2' / 60 cm
Optical Design5 Elements in 4 Groups
Diaphragm Blades12
Focus TypeManual Focus
Image StabilizationNo
Filter Size52 mm (Front)

Meyer-Optik Gorlitz Primoplan 58mm f/1.9 II Reviews

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