for interchangeable lens cameras. Introduced by Canon EOS 650"Annual Guide: Modern Photography's Top Cameras for '88: Canon EOS 650," p. 29. Modern Photography, Volume 51, Number 12; December 1987. and EOS 620"Modern Tests: Canon EOS 620: An Autofocus for Pros?" pp. 56–60. Modern Photography, Volume 52, Number 2; February 1988. 35 mm SLR bodies and Canon EF lenses, this lens mount is essentially a computer data port. Mechanical camera-to-lens linkages can link auto-diaphragm lenses and instant return mirror, focal-plane shutter SLRs, but electronic autofocus required additional electronic data exchange between camera and lens. Canon decided to place everything under electronic control, even though it meant that earlier Canon lenses would not be usable with the new bodies.Goldberg, Camera Technology. pp. 221–222Tamotsu Shingu, "Modern Photography's Inside Your Camera Series #39: The EOS System," pp. 17–24. Modern Photography, Volume 53, Number 6; June 1989. 1988 Minolta Maxxum 7000i (Japan; called Dynax 7000i in Europe, Alpha 7700i in JapanHansen and Dierdorff, p. 95): first multi-sensor (three, in an "H" pattern) passive autofocus SLR. First generation AF SLRs had a single central AF sensor. However, composition rules generally say it is wrong to have dead center subjects and most compositions have off-center subjects. Multiple AF sensor arrays covering a wide area can more easily focus on these compositions."Popular Photography: Test Report: Minolta Maxxum 7000i: Is Minolta's prize AF SLR still the standard?" pp. 54–62. Popular Photography, Volume 96, Number 10; October 1989. Mayer, Minolta Classic Cameras. pp. 104–133 In 2007, the number of AF sensors reached 51 in the Nikon D3 and D300 (Japan) digital SLRs. In 1990, the 7000i and a sister camera, the Minolta Maxxum 8000i (Japan, 1990),Herbert Keppler and Larry White, "Minolta Moves Up!! So you were expecting a Maxxum 9000i; will you settle for an 8000i instead?" p. 54. Popular Photography, Volume 97 Number 3; March 1990. were also the first 35 mm SLRs with available "panoramic" format film gate mask and focusing screen accessory. Introduced in 1989 by the Kodak Stretch 35 (USA) single-use camera, this 13×36 mm frame on 135 film with 3½×10 inch prints was a faddish snapshot format during the 1990s.Dan Richards, "Kodak's Wild Disposables Are WIDE and WET; Fuji's is a Tele!" pp. 26, 85, 95. Popular Photography, Volume 96, Number 7; July 1989. 1989 Yashica Samurai Z-L (Japan): first SLR intentionally designed for left-handed operation. Took up to 72 exposures of horizontal 18×24 mm