SX-70 Sonar OneStep
SX-70 Sonar OneStep
Polaroid
SX-70 Sonar OneStep
1978 – 1981
SX-70 FilmSX-70
The world's first autofocus SLR camera, using Polaroid's patented sonar ranging system that emitted ultrasonic pulses to measure distance. The gold sonar transducer mounted above the lens became an iconic design element. It was the most technically advanced SX-70 model ever produced.
Notable Features
- World's first autofocus SLR camera
- Patented sonar ultrasonic ranging system
- Iconic gold sonar transducer design
Specifications
- Film Type
- SX-70 integral film
- Lens
- 116mm f/8 four-element glass
- Shutter
- Electronic, 14 sec to 1/175 sec
- Flash
- Flashbar socket
- Viewfinder
- Single-lens reflex with split-image focus confirmation
- Focus
- Sonar autofocus (ultrasonic ranging)
- Dimensions
- 7 x 4.4 x 1.25 in (folded)
- Weight
- 1.7 lbs
- Battery
- 6V flat cell in film pack
