Plummer, William T., "Unusual optics of the Polaroid SX-70 Land camera", Appl. Opt. 21, 196-208 (1982) Just below the exposure control is the electric eye. There’s nothing you need to do with this when using the camera except to make sure your finger is not covering it. Sonar Autofocus – Labelled as both Pronto! and OneStep models, but usually with an AF or Sonar moniker. Polaroid I-2 review: A return to high-end instant cameras". Engadget . Retrieved September 25, 2023. a b c Berger, Ivan (March 1973). "Our dream was to change photography". Popular Mechanics . Retrieved 31 May 2019.

McCusker, J. J. (1997). How Much Is That in Real Money? A Historical Price Index for Use as a Deflator of Money Values in the Economy of the United States: Addenda et Corrigenda (PDF). American Antiquarian Society. 1700–1799: McCusker, J. J. (1992). How Much Is That in Real Money? A Historical Price Index for Use as a Deflator of Money Values in the Economy of the United States (PDF). American Antiquarian Society. 1800–present: Federal Reserve Bank of Minneapolis. "Consumer Price Index (estimate) 1800–" . Retrieved May 28, 2023. Nystedt, Brendan. "Get Retro-Chic With Polaroid's New Instant Camera". Wired. ISSN 1059-1028 . Retrieved December 27, 2021. Improvements in SX-70 film led to the higher speed 600 series film, then to different formats such as 500 series (captiva), and spectra.

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There are several models of the Polaroid SX-70, as the camera and technology progressed through the years.

Manipulation of the photograph is best done about two minutes after the picture has fully developed. It will stay soft and workable for about 5–15 minutes. Some colors will be more difficult to work on (dark green), whereas others are workable for a long time (red). If the photograph is on a warm surface or slightly warmed in an oven, image manipulation is made easier. The biggest update was when the Sonar auto-focus feature was released. If you’re a lover of auto-focus, the sonar models are worth looking into. The Land Camera 1000 exists with 2 different coloured shutter buttons - green and red; there is some debate among collectors as to which is more common.Polaroid Now Generation 2 i-Type Instant Camera - Polaroid UK". Polaroid . Retrieved July 12, 2023.