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Tokina AT-X Pro 12-24 f/4.0 lens

Tokina Co., Ltd. (株式会社トキナー Kabushiki-gaisha Tokinā?) is a Japanese manufacturer of photographic lenses and CCTV security equipment.

Partnership with Pentax[edit]

RMC Tokina 80-200 mm F4

Tokina has[when?] become a partner of Pentax, a division of Ricoh, and has agreed to jointly develop some lenses. These will[when?] be available under the Pentax brand in Pentax K mount and under the Tokina brand for all other lens mounts. However, the research center, design and engineering teams of these two companies are[when?] completely independent.

The co-developed lenses share main optical designs but have different barrel structures and coatings.[citation needed] They also have some other different features. For example, the Tokina AT-X Pro 12-24mm II comes with built-in silent focusing motor, while the Pentax version has screwdrive autofocus. Another example is that Tokina AT-X Pro 16-50mm and 50-135mm have only screw-drive autofocus and no weather-sealing, but Pentax versions have both features.

Another difference is the procedure for switching between manual focus and auto-focus. With Tokina's "One-touch Focus Clutch Mechanism", you move the focus ring forward to enter auto-focus mode, and backward to enter manual-focus mode. With Pentax's "Quick-Shift Focus System", introduced in early 2004 with the DA 16-45mm f/4.0, you just rotate the manual focus ring while staying in auto-focus mode. Sigma and Nikon now have systems similar to Tokina and Pentax, respectively.

As of March 2009, the six lenses co-developed and released in both Tokina and Pentax versions are the AT-X Pro 12-24mm f/4.0, AT-X Pro 16-50mm f/2.8, AT-X Pro 50-135mm f/2.8, AT-X 10-17mm f/3.5-4.5 fisheye, AT-X Pro 100mm /2.8 macro, and AT-X Pro 35mm f/2.8 macro. The last Tokina lens released before the collaboration was the 28-70mm f/2.8, in 2002. The currently available Tokina own-designed lenses are the 11-16mm f/2.8, 80-400mm f/4.5-5.6, 16.5-135mm f/3.5-5.6 and 28-80mm f/2.8.

As of February 2010, Tokina started production on its first Sony Alpha-mount lens, the AT-X 116 Pro DX 11–16 mm f/2.8.

Lens designations[edit]

  • FX - Full frame
  • DX - cropped digital
  • AF - Auto-Focus
  • AT-X Pro - professional line (constant aperture zooms or primes)
  • AT-X - consumer line
  • IF - Internal Focus System
  • FE - Floating Element System

Optical design

  • AS - Aspherical Optics
  • F&R - Advanced Aspherical Optics
  • SD - Super Low Dispersion
  • HLD - High-Refraction and Low Dispersion
  • MC - Multi-Coating


Tokina 135mm f2.8 lens on an Olympus Digital body

  • SL 17 17mm f/3.5
  • RMC 17 17mm f/3.5
  • AT-X 17 AF 17mm f/3.5
  • AT-X 17 PRO AF 17mm f/3.5
  • SL 24 24mm f/2.8
  • RMC 28mm f/2
  • RMC 28mm f/2.8
  • SL 28 28mm f/2.8
  • SL 35 35mm f/2.8
  • AT-X M35 PRO DX AF 35mm f/2.8 MACRO
  • AT-X M90 90mm f/2.5 MACRO
  • AT-X M100 AF 100mm f/2.8 MACRO (internal focus, 1:2)
  • AT-X M100 PRO D AF 100mm f/2.8 MACRO
  • SL 135 135mm f/2.8
  • SL 200 200mm f/3.5
  • AT-X 300 SD 300mm f/2.8
  • AT-X 300 AF II 300mm f/2.8
  • AT-X 300 PRO AF 300mm f/2.8
  • AT-X 304 AF 300mm f/4
  • 300mm f/5.5 (preset T-mount)
  • SL 300 300mm f/5.6
  • SL 400 400mm f/5.6
  • SL 400 SD 400mm f/5.6
  • AT-X SD AF 400mm f/5.6
  • 400mm f/6.3 (preset T-mount)
  • TM 500 500mm f/8 Mirror
  • T600 600mm f/8 (preset, lens head & focus unit)
  • T800 800mm f/8 (preset, lens head & focus unit)
  • AT-X 107 DX AF fisheye 10-17mm f/3.5~4.5
  • AT-X 116 PRO DX AF 11–16mm f/2.8
  • AT-X 124 PRO DX AF 12–24mm f/4
  • AT-X 124 PRO DX II SD IF AF 12–24mm f/4
  • AT-X PRO DX AF 12-28mm f/4
  • AT-X PRO FX AF 16-28mm f/2.8
  • AT-X 165 PRO DX AF 16–50mm f/2.8
  • AT-X DX AF 16.5-135mm f/3.5-5.6
  • AT-X PRO FX AF 17-35mm f/4
  • AT-X 24-70mm PRO FX f/2.8
  • AF 193 19-35mm f/3.5~4.5 (made by Cosina)
  • AT-X 235 PRO AF 20-35mm f/2.8
  • AF 235 20-35mm f/3.5-4.5 (72mm filter)
  • AF 235 II 20-35mm f/3.5-4.5 (77mm filter)
  • AT-X 280 PRO AF 28-80mm f/2.8
  • AT-X 240 AF 24-40mm f/2.8
  • AT-X 242 AF 24-200mm f/3.5~5.6
  • RMC 25-50mm f/4
  • AT-X AF 28-70mm f/2.8
  • AT-X 270 PRO AF 28-70mm f/2.6-2.8
  • AT-X 287 PRO SV AF 28–70mm f/2.8
  • SZ-X 287 28-70mm f/2.8-4.3
  • SZ-X 270 SD 28-70mm f/3.5-4.5
  • SMZ 287 28-70mm f/4
  • AT-X 280 PRO AF 28-80mm f/2.8
  • AF 28-80 f/3.5-5.6
  • AT-X 285 28-85mm f/3.5-4.5
  • RMC 28-85mm f/4
  • SZ-X 205 28-105mm f/4-5.3
  • AT-X 235 28-135mm f/4-4.6
  • AT-X 357 35-70mm f/2.8
  • RMC 35-70mm f/3.5
  • RMC 35-105mm f/3.5
  • SMZ 35-105mm f/3.5-4.3
  • RMC 35-135mm f/4-4.5
  • AT-X 352 35-200mm f/3.5-4.5
  • AT-X SD 35-200mm f/3.5-4.5
  • SZ-X SD 35-200mm f/4-5.6
  • AF 353 SD 35-300mm f/4.5-6.7
  • AT-X 535 PRO DX AF 50–135mm f/2.8
  • EMZ 520 50-200mm f/3.5-4.5
  • AT-X 525 50-250mm f/4-5.6
  • AT-X 120 60-120mm f/2.8
  • AT-X PRO FX AF 70-200mm f/4 VCM-S (image stabilization)
  • RMC 70-210mm f/3.5
  • RMC 70-210mm f/4
  • SZ-X 210 SD 70-210mm f/4-5.6
  • RMC 70-220mm f/3.5
  • RMC 75-150mm f/3.8
  • SMZ 75 75-260mm f/4.5
  • AT-X 828 AF 80-200mm f/2.8
  • AT-X 828 PRO AF 80-200mm f/2.8
  • RMC 80-200mm f/4.0
  • SMZ 835 80-200mm f/3.5-4.5
  • SZ 820 80-200mm f/4
  • SMZ 845 80-200mm f/4.5
  • SZ-X 820 80-200mm f/4.5 (filter 55mm)
  • SZ-X 80-200mm f/ 4.5-5.6 (filter 49mm & 52mm)
  • RMC 80-250mm f/4.5
  • AT-X 840 AF 80-400mm f/4.5-5.6
  • AT-X 840 PRO D AF 80-400mm f/4.5~5.6
  • 90-230mm f/4.5
  • AT-X 100-300mm SD f/4
  • AT-X 340 AF 100-300mm f/4
  • AT-X 340 AF II 100-300mm f/4
  • RMC 100-300mm f/5
  • SZ 10 100-300mm f/5.6
  • AT-X 150-500mm f/5.6
  • RMC 80-200mmf/4

See also[edit]


External links[edit]