SMC Pentax-A 50mm f/1.7

SMC Pentax-A 50mm f/1.7 - Like New | Classic Fast Standard Prime in Pentax K Mount with Original Box

The SMC Pentax-A 50mm f/1.7 is one of the most celebrated standard primes from Pentax's respected A-series lens lineup — a sharp, fast, and beautifully built optic that delivers exceptional image quality with the characteristic natural rendering quality that SMC Pentax glass is universally renowned for. The SMC (Super Multi Coating) designation reflects Pentax's advanced multi-layer coating technology — delivering outstanding contrast, accurate colour rendition, and exceptional resistance to flare and ghosting. The A-series designation adds full aperture coupling with Pentax A-series and later camera bodies — enabling full Program and Shutter Priority mode compatibility. In like-new condition with its original box, this is an exceptional and particularly complete example. Serial number SR 1356391.

Key Features

• 50mm focal length — classic standard perspective for portraits, street, and everyday shooting
• Fast f/1.7 maximum aperture for excellent low-light performance and beautiful background separation
• SMC (Super Multi Coating) for outstanding contrast, colour accuracy, and flare resistance
• A-series designation — full aperture coupling for Program and Shutter Priority modes
• Pentax K mount — compatible with all Pentax K mount film and digital bodies and mirrorless via adapter
• Manual focus operation with smooth, well-damped focus ring
• Solid all-metal construction of the highest quality
• Original box included — a particularly complete and well-preserved example
• In like-new condition — exceptional find

Condition Report

• Body: Like new — no marks, scratches, or signs of use on the barrel or mount
• Optics: Elements clean and clear — no dust, fungus, haze, or coating damage; SMC coatings pristine
• Mechanics: Focus ring operates smoothly and precisely; aperture blades clean and snappy; mount clean and secure

"The SMC Pentax-A 50mm f/1.7 is one of the great standard primes of the vintage lens world. The Super Multi Coating delivers a contrast and colour accuracy that is immediately apparent, the A-series designation adds full program mode compatibility, and the f/1.7 aperture gives you a beautifully rendered out-of-focus background at portrait distances. In like-new condition with the original box this is a genuinely exceptional and rarely seen find."

What's Included

• SMC Pentax-A 50mm f/1.7 lens
• Original box
• Front and rear lens caps

Technical Specifications

• Brand: Pentax
• Model: SMC Pentax-A 50mm f/1.7
• Serial Number: SR 1356391
• Mount: Pentax K
• Focal Length: 50mm
• Maximum Aperture: f/1.7
• Minimum Aperture: f/22
• Lens Construction: 6 elements in 5 groups
• Angle of View: 46°
• Minimum Focus Distance: 0.45m
• Filter Thread: 49mm
• Construction: All-metal barrel
• Type: Prime Lens
• Category: Lenses
• Condition: Like New