Olympus Pen FT1966

History

Yoshihisa Maitani designed the original Pen F system, introduced in 1963, as a miniaturized interchangeable-lens SLR using the half-frame format. The rotary shutter - unique in SLR design and operating without a vertical travel direction - allowed the Pen F to synchronize with electronic flash at all shutter speeds, a capability most full-frame SLRs of the era could not match above 1/60s or 1/125s.

The Pen FT followed in 1966 with the addition of a TTL meter using a cadmium sulfide cell. This required stop-down metering (the aperture closes to the taking aperture during metering, rather than remaining wide-open), which is slower than the open-aperture metering of most later SLRs but was adequate for deliberate shooting. The FT also added a self-timer and PC sync terminal absent from the original F.

The G.Zuiko Auto-S 40mm f/1.4 was introduced as the premium alternative to the standard 38mm f/1.8. The "G" prefix in Olympus's Zuiko naming convention indicates the number of lens elements (G = 7). The 40/1.4 was not the standard kit lens and was priced accordingly at new; it was aimed at photographers needing maximum light gathering in the half-frame format. Production numbers were lower than the 38mm.

The Pen FT was succeeded by the Pen FV (1967), which removed the meter but was otherwise identical, and the line was discontinued in 1972.

Why It Matters

The Pen FT represents the technical apex of the Pen F system as a metered body. Paired with the G.Zuiko 40/1.4, it offers a fast-aperture, interchangeable-lens half-frame SLR with through-the-lens metering - a specification that was genuinely unusual in any format in the late 1960s.

The rotary shutter's all-speed flash sync was a practical advantage for available-light and flash-fill photography that many full-frame contemporaries could not match. Maitani's mechanical ingenuity in packaging this capability into a half-frame body is cited in Japanese photography history as an example of industrial design solving a problem (flash sync at speed) that larger systems had not yet addressed.

The G.Zuiko 40/1.4 specifically produces a rendering that Pen F system enthusiasts describe as distinct from the 38mm: slightly longer perspective, wider maximum aperture, and bokeh characteristics associated with the 7-element design. In 2026, a working Pen FT body with the 40/1.4 is a premium collectible entry, with prices reflecting both the body's desirability and the lens's relative scarcity.

Lenses & Accessories

The Pen F mount is a dedicated bayonet with no modern production. Available lenses for the system include:

• F.Zuiko Auto-S 38mm f/1.8 - the standard kit lens; most common, optically excellent
• G.Zuiko Auto-S 40mm f/1.4 - the premium fast normal; this document's subject; rare and expensive
• E.Zuiko Auto-W 25mm f/4 - wide-angle option
• D.Zuiko Auto-W 20mm f/3.5 - ultra-wide; rare
• E.Zuiko Auto-T 60mm f/1.5 - fast short telephoto; scarce
• Zuiko Auto-T 100mm f/3.5 - telephoto
• Zuiko Auto-Macro 38mm f/3.5 - macro option
• Stop-down adapters allow use of some Olympus OM lenses and other mounts with loss of metering.

Accessories: Olympus produced dedicated Pen F flash units, a right-angle finder, and a waist-level finder for the system.

Sample Photographers / Notable Use

• The Pen F system was used by photojournalists in Japan and Europe during the 1960s who valued the double-frame-count-per-roll economy and the compact form factor.
• Documentary photographers covering protests and political events in 1960s Japan used Pen F system cameras, where the ability to shoot 72 frames on a 36-exposure roll was a practical advantage.
• The Pen FT's flash sync at all speeds made it useful for studio half-frame photography where full-speed sync reduced ambient contamination.

References

• Camera-Wiki: Olympus Pen FT - body specifications and production history
• Zuikopedia: G.Zuiko Auto-S 40mm f/1.4 - lens-specific data; verify URL accuracy

Ilford HP5 Plus is a flexible ISO 400 black-and-white film with classic grain and strong push-processing tolerance.