DATA BACK A
Within seconds, the A-1's back cover can be exchanged for the Data Back A, which, again, becomes an integral part of the camera's electronic system. As you press the shutter release, the day, month and year will be recorded clearly but unobtrusively in the lower right hand corner of every picture, i.e., unless you decide to leave it blank. Since letters and Roman numerals are also avail- able, the Data Back can serve as a convenient coding system as well.
Various Accessories for Close-ups and Photomacrography
Canon offers a whole gamut of accessories which give you unlimited possibilities in close-ups, photomacrography and photo- micrography. At the center of the system stands the elegant, versatile Auto Bellows featuring a built-in focusing rail, immediate lens reversal and automatic diaphragm coupling with the Canon Double Cable Release. For higher magnifications with excellent image quality there are the specially aberration-corrected Macro and Macro- photo lenses. A Macro Stage and four duplicators provide the maximum of ease in shooting difficult subjects.
Of course, close-up lenses and reversing rings are also offered along with three sets of extension tubes. The remarkable set of extension tubes FD-U permit full-aperture meter- ing, automatic diaphragm coupling and AE photography with the A-1. There is also a Bellow FL. Even with manual accessories, the Macro Auto Ring and Double Cable Release preserve automatic diaphragm coupl- ing. Canon's extra-large, ultra-stable Copy Stand 5, the smaller Copy Stand 4, a small, collapsible copy stand, camera supports, a Focusing Rail, cable releases and microscope adaptors round out Canon's up-to- date, integrated, comprehensive close-up system.