Information AboutSx-70 |
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The SX-70 was a folding Single Lens Reflex Land Camera produced by the Polaroid Corporation in the 1970s . It was the first and only Instant SLR in history and the first camera to use Polaroid's new SX-70 integral print film, which developed automatically without the need for intervention from the photographer. The SX-70 was also notable for its elegant folding design, which allowed the camera to be relatively compact when collapsed. There were a variety of models beginning in 1972 with the original SX-70, though all shared the same basic design. Later models were often equipped with a Sonar Autofocus system. Though expensive, the SX-70 was popular in the 1970s and retains a cult following today. IMAGE MANIPULATION user B_Zedan .]] One feature of the SX-70's integral print film is its ability to be manipulated while still developing. Because it is an instant film and develops over a period of several minutes, artists are able to "push" the emulsion material around the photograph to produce effects somewhat like Impressionist paintings. FILM ISSUES SX-70 "Time-Zero" film is still in production, though it can be difficult to find and quite expensive and Polaroid says it will be discontinued early in 2006 . For these reasons, many SX-70 owners modify their cameras to use Polaroid's more recent 600 film, which is readily available and relatively inexpensive. SX-70 and 600 film are not exactly the shape however, the 600 having a some extra little 'nubs', so photographers must use a playing card or dark slide from a used Polaroid film case to help slide the 600 film into the camera. Another problem with using 600 film is that it is significantly faster than SX-70 film, causing overexposure. To address this issue, some photographers simply set the exposure dial all the way to "darken" and replace the small ND Filter over the electronic eye with a similar clear filter. Polaroid itself recommends placing a 1-stop ND filter over the lens, and replacing the small ND filter over the electronic eye with a clear piece of plastic (as from a CD case). Even with these modifications, SX-70 users may find they need to set the exposure controls fully to "darken." Perhaps the most effective, yet difficult, modification is to modify the SX-70's exposure electronics to accept the film's higher speed. SEE ALSO EXTERNAL LINKS
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