Polaroid OneStep AutoFocus1991

History

Polaroid introduced the 600-series film in 1981 alongside new camera bodies designed around a higher-ISO emulsion - nominally ISO 640 versus the SX-70 film's lower rating - and an integrated flash unit. The 600 format quickly displaced the SX-70 film at the mass-market level, as the built-in flash eliminated the separate flashbar purchase that had added cost and inconvenience to the SX-70 experience.

The OneStep name had been used since 1977 for Polaroid's simplest rigid-body camera offerings, beginning with the SX-70 OneStep. As the 600 system matured through the 1980s, the OneStep became Polaroid's canonical entry-level body: minimal controls, integrated flash, fixed focus, accessible price. The OneStep AF emerged as an upgrade tier within this positioning - offering sonar autofocus as a meaningful differentiator over fixed-focus OneStep variants without requiring the buyer to step up to higher-end bodies like the 660 AF or the SLR 680.

By the early 1990s Polaroid's 600 lineup had stratified clearly: fixed-focus OneStep bodies at the low end, sonar-equipped models like the OneStep AF in the middle, and electronic SLR bodies at the top. The OneStep AF sat in a practical sweet spot - good enough for indoor group shots where fixed focus would struggle, cheap enough for gift purchase. Production appears to have wound down in the mid-1990s as Polaroid continued iterating the 600 lineup.

Why It Matters

The OneStep AF is a minor but instructive chapter in the history of Polaroid autofocus: it shows how thoroughly the sonar technology had been commoditized within Polaroid's own lineup by the early 1990s. A mechanism that had been a headline technical achievement on the SX-70 Sonar in 1978 was, thirteen years later, available on a mid-range family camera. The diffusion of sonar autofocus down the price ladder mirrors what happened with active-AF in 35mm compacts over the same period.

For current users, the OneStep AF is a practical 600-film shooter. The sonar focus genuinely improves hit rate in close-quarters social photography - the camera's intended use - versus fixed-focus alternatives. The built-in flash means the camera is genuinely self-contained: one pack of 600 film is all that's needed. The 600 film format remained in continuous production, and as of 2026 Polaroid Originals/Polaroid produces 600-format film (as well as i-Type, which lacks the in-pack battery and will not power the camera).

The OneStep AF also serves as a reminder that Polaroid's 600-era camera market was heavily segmented and confusingly branded. Dozens of OneStep variants exist; the AF suffix is a reliable differentiator for the sonar-equipped version, though regional naming variations may complicate used-market searches.

Sample Photographers / Notable Use

• The OneStep AF was a mainstream consumer product; documented fine-art use is limited in published sources.
• 600-series cameras of this era appear extensively in vernacular photography archives from the 1990s; the format's square prints are a visual marker of the decade's domestic photography.
• Polaroid's television advertising in the early 1990s promoted autofocus 600 cameras as solutions for indoor birthday and holiday photography, where fixed-focus performance was visibly inadequate.

References

• Camera-Wiki: Polaroid OneStep - OneStep line history and variant overview.
• Wikipedia: Polaroid 600 - 600 film system introduction and camera family context.
• Christopher Bonanos, Instant: The Story of Polaroid (Princeton Architectural Press, 2012) - Polaroid's 600-era marketing strategy and product segmentation.