Yashica Yashicaflex S1954

History

By 1954, Yashima Kogaku Seiki had produced the original Yashicaflex A and was rapidly iterating its TLR lineup. The Japanese camera market in this period was intensely competitive: numerous small manufacturers were producing twin-lens reflex cameras in the 6x6 format, and differentiation turned heavily on lens quality and shutter specification.

Yashima responded by introducing the Yashinon brand name for its better optical elements, beginning on the S model. The Yashinon designation - a combination of "Yashi" and the "-on" suffix common in Japanese optical branding of the era - would go on to appear on Yashica cameras throughout the 1960s and into the early 1970s, becoming the brand's primary lens identifier on export markets.

The Yashicaflex S was succeeded within the Yashicaflex line by the AS model, which combined a Yashinon lens with further refinements. As Yashima transitioned to the Yashica brand identity and launched the lettered series (A, C, D, E) and later the Mat line, the Yashicaflex designations were retired. The S is consequently a short-run model from a transitional period in Yashima's corporate history.

Why It Matters

The Yashicaflex S marks the first appearance of the Yashinon lens name in the TLR product line, making it the optical starting point of the Yashinon story in medium format. That story ends with the Yashica-Mat 124G's Yashinon-DS 80mm f/2.8 - one of the most respected lenses in the 6x6 TLR category at any price level. Tracing the Yashinon designation from the S to the Mat 124G illustrates a twenty-five-year arc of optical development within a single Japanese company.

Practically, the Yashinon 80mm f/3.5 on the S produces results that are meaningfully better than the Tri-Lausar at wide apertures, with improved corner sharpness and reduced field curvature. On modern medium-speed 120 film, the lens is a capable performer. The camera's manual-only operation, knob advance, and absence of a meter place no barriers between the photographer and the exposure decision.

For collectors, the S is one of the less-documented Yashicaflex variants and is often incorrectly identified or conflated with later models in general listings. A correctly identified example in good mechanical condition represents fair value in the context of the early Yashicaflex market.

Lenses & Accessories

The taking lens is fixed and non-interchangeable. Accessories for the Yashicaflex S are consistent with other early Yashicaflex models:

• Screw-in filters - thread specification should be confirmed on the individual example; early Yashicaflex models were not uniformly standardised on filter thread size
• Close-up supplementary lenses - portrait-distance add-on lenses compatible with the filter thread
• Ever-ready case - original S cases are rare; any compact 6x6 TLR case of appropriate dimensions will serve

Sample Photographers / Notable Use

• The Yashicaflex S was a mid-tier domestic Japanese and lower-cost export camera in 1954; documented professional adoption is limited.
• Of primary interest to collectors of the early Yashicaflex series and those tracking the introduction of the Yashinon optical designation.

References

• Camera-Wiki: Yashicaflex - overview of the full Yashicaflex line including S model details and lens designations