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Rent NowOlympus OM Zuiko Auto-Macro 50mm f/3.5 Lens
Vintage Manual Focus Macro Prime SOLD AS-IS / REPAIR
The Olympus OM Zuiko Auto-Macro 50mm f/3.5 is a highly revered, ultra-compact macro prime lens designed for vintage 35mm SLR Olympus OM system cameras. Based on a classic, ultra-sharp Tessar-style optical scheme, this specialty prime delivers a native 1:2 (1/2 life-size) reproduction magnification ratio. Equipped with an innovative floating element system for automatic close-focus correction, it maintains exceptional resolution all the way from infinity down to its closest macro distances. While perfectly suited as an ultra-sharp standard daily lens, this legacy prime is highly adapted by modern mirrorless hybrid shooters for its clinical detail and compact design. Please note: This vintage lens is being sold strictly AS-IS due to internal optical fungus and dark dust spots.
Key Features & Engineering
Dual-Purpose Standard & Macro Optic: Functions flawlessly as a standard 50mm walk-around prime while doubling as a dedicated macro lens, offering a level of close-range resolving power that standard 50mm lenses cannot match.
1:2 Native Magnification Ratio: Captures intricate textures and minute details with a 1:2 reproduction ratio, pulling the viewer deep into close-up macro compositions.
Floating Element Mechanism: Features an advanced internal floating lens group architecture. This system automatically compensates for aberrations at short distances, ensuring edge-to-edge sharpness and flat-field definition throughout the entire focusing range.
Tactile OM Manual Focus Mount: Fully mechanical manual focus architecture features a precision-dampened focus ring with a long, deliberate throw for critical macro adjustments. Natively fits Olympus OM film bodies and adapts effortlessly to modern mirrorless digital sensors.
Item Condition & AS-IS Notes
Optical Condition (Fungus & Dark Dust): SOLD AS-IS. Inspection reveals internal optical fungus blooming alongside noticeable dark dust spots settled within the internal lens elements.
Performance Impact: Under normal shooting conditions, these internal artifacts may cause a reduction in contrast, increased highlight blooming, or visible sensor-like spots when stopped down to small apertures (like f/16 or f/22). This unit is an excellent candidate for an experienced technician’s optical overhaul, element cleaning, or for users seeking an organic, lo-fi character lens.
Mechanical Status: The physical lens barrel, smooth manual focus ring, and clicking aperture mechanics are fully functional. The internal iris blades are dry and snappy.
Included Accessories: This lens is being sold bare. It does NOT include a front lens cap, a rear lens cap, or a lens hood.
Technical Specifications
Lens Classification: Vintage Manual Focus Macro Prime (Zuiko Series)
Lens Mount Type: Olympus OM Mount
Focal Length: 50mm
Maximum Aperture: f/3.5
Minimum Aperture: f/22
Maximum Magnification Ratio: 1:2 (1/2 Life-Size)
Optical Design: Classic Tessar-Based Scheme with Floating Elements
Focusing Control: Fully Mechanical Manual Focus & Manual Aperture Ring
Chassis Material: Metal and Industrial Composite Barrel Construction
