Argus Cintar 50mm f/3.5
At f/3.5, it wasn’t fast by modern standards, but in the hands of a patient photographer, it delivered a look all its own.
Overview
The Argus Cintar 50mm f/3.5 was the standard lens for one of America’s most iconic 35mm rangefinders—the Argus C3, introduced in 1937. Marketed under names like “Coated Cintar” and sometimes noted for its “hard coated” optics, this lens was a color-corrected anastigmat designed to deliver solid performance in an era when simplicity and reliability mattered more than speed or edge-to-edge sharpness. It was the default optic for the C3 and also appeared on other models in the C-Series and beyond, including the Argus C33, A-Four, and Colormatic. While not a high-speed lens, its f/3.5 aperture was a thoughtful compromise between light gathering, depth of field, and the mechanical constraints of the C3’s coupled rangefinder design.
Built around a three-element airspaced anastigmat configuration—commonly referred to as a Cooke triplet—the lens prioritized clarity in the center of the frame over uniform performance across the entire image circle. Owners report that when stopped down slightly, it produces images with a distinctive character: crisp central detail softened by noticeable vignetting and edge blur, a trait that some modern shooters actively seek for its vintage aesthetic. The coating, while basic by today’s standards, was a meaningful upgrade over uncoated glass, helping to reduce flare and improve contrast in backlit situations.
Despite its modest specs, the Cintar f/3.5 earned a loyal following. Some collectors praise its rendering on digital bodies, noting that when adapted to cameras like the Canon 5D Mk II, it still produces compelling images. One Reddit user called it their “favorite 50mm lens,” a testament to its enduring charm. But it’s not without quirks—its optical formula, while elegant, doesn’t correct for modern expectations of flat fields or uniform sharpness, and its focus throw is short by contemporary standards.
Specifications
| Manufacturer | Argus |
| Focal Length | 50mm |
| Maximum Aperture | f/3.5 |
| Lens Design | three-element airspaced anastigmat design |
| Lens Type | triplet anastigmat |
| Coating | Coated |
| Filter size | 19mm screw-in or 41mm slip-on accessories |
| Minimum Focusing Distance | 3 feet |
Key Features
Three-Element Airspaced Anastigmat Design
The optical heart of the Cintar f/3.5 is its triplet anastigmat layout—a three-element, three-group design with air spacing between the elements. Also described as a “Cooke triplet,” this configuration was a proven standard in mid-tier lenses of the era, balancing cost, manufacturability, and image quality. It corrected for chromatic aberration and spherical distortion better than simpler designs, though not to the level of later multi-element lenses. The air spacing allowed for improved correction over cemented triplets, contributing to the lens’s reputation for central sharpness.
Hard Coated Optics
Unlike earlier uncoated versions, the coated Cintar f/3.5 featured a “hard coated” optical surface, a step forward in anti-reflective treatment for its time. This coating helped reduce internal reflections, particularly when shooting into bright light, and improved contrast compared to uncoated glass. While not multi-coated or broadband like modern lenses, the single-layer coating was a meaningful upgrade that contributed to the lens’s improved performance in varied lighting.
Center-Sharp Rendering with Vignetting
According to collector testing and user reports, the Cintar f/3.5 delivers sharp detail in the center of the frame, especially when stopped down to f/5.6 or f/8. However, performance falls off noticeably toward the edges, with strong vignetting and softness common even at smaller apertures. This characteristic, often seen as a flaw in technical terms, has become a sought-after aesthetic in film and digital adaptation, where photographers value the lens’s “look” over clinical precision.
Historical Context
The Argus Cintar 50mm f/3.5 was designed specifically for the Argus C3, a 35mm rangefinder introduced in 1937 that became one of the best-selling American cameras of its time. It served as the default lens for the C3 and was also used on later models like the C33 and A-Four. While a faster f/2.8 version existed, it was less common, making the f/3.5 the most widely distributed variant. The lens represented a practical engineering solution—optically competent, mechanically robust, and affordable to produce—aligning with Argus’s goal of bringing capable photography to the middle-class market.
Collectibility & Value
Current market listings show the Argus Cintar 50mm f/3.5 trading between $60 and $150, depending on condition and whether it’s sold as part of a complete camera. Listings on Facebook and Etsy reflect this range, with one example offered at “$60 OBO” and others priced at $65.50 and $150.00. Most units are sold “AS-IS” or with notes about wear and tear from prior use, and testing is often not possible due to lack of film or compatible bodies. While no widespread failure modes are documented for the lens itself, associated cameras like the C3 often require shutter repairs, which can affect the value of complete sets.
eBay Listings
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