initially very expensive and used mostly by professional photographers.Peter Kolonia and Dan Richards, "Canon Image Stabilization VS Nikon Vibration Reduction," pp. 62, 64, 66, 68, 204. Popular Photography, Volume 65 Number 9; September 2001. Stabilization surged into the amateur digital SLR market in 2006.Michael J. McNamara, "Test: Sony Alpha 100 DSLR: Mix Master: Blending a proven DSLR, 10.2MP sensor, and cool technology," pp. 64, 66, 68. Popular Photography & Imaging, Volume 70 Number 9; September 2006Julia Silber, "Lens Test: Nikon 18-200mm f/3.5-5.6G DX VR AF-S: Super Superzoom," p. 67. Popular Photography & Imaging, Volume 70 Number 4; April 2006. However, the Konica Minolta Maxxum 7D (Japan) digital SLR introduced the first camera body-based stabilization system in 2004Michael J. McNamara, "Test: Konica Minolta Maxxum 7D: Rock Solid: New 6MP DSLR can be shaken, but not stirred," pp. 52–55. Popular Photography & Imaging, Volume 69 Number 2; February 2005. and there is now a great engineering and marketing battle over whether the system should be lens-based (counter-shift lens elements) or camera-based (counter-shift image sensor). In the case of the Pentax system, the backwards compatibility of the modern DSLRs for the entire K-mount lens range (and the M42 screwmount lenses with an adapter) means that even these older lenses are fully stabilised, something not possible with in-lens systems such as those of Canon or Nikon.Dan Richards, "DSLR Truth Squad. Buying a Camera? Don’t Believe Everything You Hear. Here Are 10 Facts You Must Know Now," pp. 90–92, 94, 96–97. Popular Photography & Imaging, Volume 70 Number 12; December 2006. . Table "The State of Stabilization," p. 94 1996 Minolta Vectis S-1 (Japan/Malaysia): first Advanced Photo System (APS) IX240 film SLR.Herbert Keppler, "SLR: How do the three interchangeable-lens APS SLRs compare with each other in features?" pp. 12–13, 16, 18. Popular Photography, Volume 61, Number 1; January 1997. Took up to forty exposures of 16.7×30.2 mm frames on polyethylene naphthalate base, singly perforated 24 mm wide film coated with invisible magnetic data encoding stripe, pre-loaded into self-locking ready-to-use cartridges. Had flat-topped non-pentaprism sideways mirror reflex and optical relay viewfinder. Compact design with good lenses and large accessory system. APS film was introduced by Kodak, Canon, Fuji, Minolta and Nikon in 1996 as Kodak's last attempt (of many) at drop-in film loading. APS was moderately popular, but faded quickly and almost dead by 2002. 21st century 2000 Canon EOS D30 (Japan): first complementary metal–oxide–semiconductor (CMOS)