Sonar Autofocus Appraisal

Polaroid SX-70 Sonar OneStep Land Camera BC Series

This is a vintage Polaroid SX-70 Sonar OneStep Land Camera, a BC Series model likely dating from the late 1970s. The unit is seen in its folded, collapsed position within its original protective molded cardboard packaging. The camera features a matte black plastic body with black textured leatherette or 'Porvair' panels on the top and bottom surfaces. A distinguishing feature of this model is the prominent circular sonar transducer housing at the top, which enabled the first ultrasonic autofocus system in an instant camera. The manual is present, displaying the iconic rainbow spectrum Polaroid branding of the era. Physically, the camera appears in very good cosmetic condition with minimal visible wear on the textured panels and no obvious scuffs to the exterior plastic housing. The chrome-bordered central panel is clean and reflective. The presence of the original manual suggests a well-maintained or lightly used set. These cameras are renowned for their complex folding engineering and high-quality SLR (Single Lens Reflex) optics. The SONAR variant was a significant technological leap for consumer photography in the late 70s, making it a highly collectible piece of mid-century industrial design and photographic history.