Pentax SMC 50mm f/2.0 Pentax-M Manual Focus K-Mount Lens (Renewed)

Price: $98.28
(as of Apr 30, 2025 11:18:09 UTC – Details)


The Pentax 50mm f/2.0 Pentax-M lens is a classic manual focus prime lens designed for Pentax K-mount film SLR cameras. The lens has a fixed focal length of 50mm, which is considered a standard or “normal” focal length on a full-frame camera. The maximum aperture of f/2.0 allows for good low-light performance and shallow depth of field control. Optical Construction: Typically, the lens comprises 5 elements in 4 groups, designed to provide sharpness and clarity in images. Its optical design includes elements to correct for aberrations and distortions, ensuring high-quality image reproduction. Lens Coating: Like other Pentax-M lenses, it features Pentax’s Super-Multi-Coating (SMC) technology. This coating minimizes flare and ghosting, improving contrast and color saturation, especially in challenging lighting conditions. Focus Mechanism: The Pentax 50mm f/2.0 Pentax-M lens is manual focus only. It requires the photographer to rotate the focus ring to achieve precise focusing. This manual focus operation allows for fine control over focusing, suitable for various photography styles. Aperture Control: Aperture adjustment is manual via an aperture ring on the lens barrel. It typically has click stops at full-stop intervals, enabling photographers to control depth of field and exposure settings accurately.
Standard Focal Length: With a focal length of 50mm, this lens provides a natural perspective that closely resembles the human eye, making it perfect for everyday photography.
Maximum Aperture of f/2.0: The fast f/2.0 aperture allows for excellent low-light performance and the ability to achieve a shallow depth of field, resulting in beautiful subject isolation and creamy background blur.
Optical Quality: Featuring a multi-coated optical design, the lens minimizes flare and ghosting, delivering sharp and contrast-rich images even in challenging lighting conditions.
Compact and Lightweight: Weighing approximately 200g (7 oz), the lens is highly portable, making it an excellent choice for travel and street photography where size and weight matter.
Close Focusing Capability: The lens has a minimum focusing distance of about 0.45 meters (1.5 feet), allowing you to capture detailed close-up shots while maintaining a natural perspective.
Classic Build: The all-metal construction gives the lens a durable feel while providing precise manual focusing. The smooth focus ring enhances the overall shooting experience.
49mm Filter Thread: The front filter thread diameter is 49mm, allowing for easy attachment of filters like polarizers, ND filters, or UV filters to enhance your photographic creativity.