Antique_Camera_Guy
Polaroid SX-70 RED (The New Yorker - May, 21st 1979)
This is another full page advertisement from "The New Yorker" magazine dated May, 21st 1979 for the Polaroid SX-70 instant film and announcing the "Polaroid SX-70 Sonar OneStep" camera.
One of the main breakthroughs with the SX-70 series instant film was that it was an Integral film (develops automatically) that had improved color saturation over earlier pack films.
The unique feature of the "Polaroid SX-70 Sonar OneStep" was that it featured an automatic focus; while other OneStep cameras were either manual or fixed-focus. This was achieved via a miniature "Sonar" device, which would emit sound waves from the camera, and by measuring the delay of the reflection the distance between the camera and the subject was calculated. Then the shutter speed and focal length of the lens was adjusted automatically. At the time (c. late 1970s) automatic focus would have been considered very high-tech.
Polaroid SX-70 RED (The New Yorker - May, 21st 1979)
This is another full page advertisement from "The New Yorker" magazine dated May, 21st 1979 for the Polaroid SX-70 instant film and announcing the "Polaroid SX-70 Sonar OneStep" camera.
One of the main breakthroughs with the SX-70 series instant film was that it was an Integral film (develops automatically) that had improved color saturation over earlier pack films.
The unique feature of the "Polaroid SX-70 Sonar OneStep" was that it featured an automatic focus; while other OneStep cameras were either manual or fixed-focus. This was achieved via a miniature "Sonar" device, which would emit sound waves from the camera, and by measuring the delay of the reflection the distance between the camera and the subject was calculated. Then the shutter speed and focal length of the lens was adjusted automatically. At the time (c. late 1970s) automatic focus would have been considered very high-tech.