The technical details behind this lens
The Pentax Q 01 Standard Prime 8.5mm f/1.9 Lens is a standard prime lens with an aperture range of F8 to F1.9 and an aperture diaphragm consisting of five blades. This lens features eight elements in five groups, including two high-grade aspherical lens elements. It has a minimum focusing distance of 20.07cm or 7.9 inches and a maximum magnification of 0.05x.
Fast and bright
The Pentax Q 01 Standard Prime 8.5mm f/1.9 Lens features a maximum aperture of F1.9. This wide aperture setting allows light to pass through for a well-lighted image despite low-light environment.
Built with quality
The Pentax Q 01 Standard Prime 8.5mm f/1.9 Lens is designed with two high-grade aspherical elements. These high-grade aspherical elements help to minimise spherical aberrations for sharper-looking image quality.
Key Features

High-grade aspherical lens elements
Five aperture blades
F1.9 maximum aperture
Top three reasons we think you will love this lens

Compact design
Lightweight
Fast AF

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