Optical Construction: 9 Elements / 8Groups
Zoom Range: 100mm
Maximum Aperture: F/2.8
Minimum Aperture: F/32
Minimum Focus Distance: 11.8 in. (30cm)
Macro Ratio: 1:1
Focus Limiter 1.28 to infinity
Number of Diaphragm Blades: 9
Filter Size: 55mm
Dimensions: 2.9 in. (73mm) X L 3.74 in. (95.1mm)
Mount availability: Canon and Nikon
The AT-X 100 PRO D is a new macro lens capable of life-sized (1:1) reproduction at 11.8 in. (30 cm). The lens' multi-coating have been re-engineered to match the highly reflective silicon based CCD and CMOS sensors in today's digital SLR cameras. This lens gives the best of both worlds because optics still give full coverage and excellent sharpness on 35mm film. A macro lens that can handle both the digital and film worlds with ease.
The AT-X 100 PRO D also has a very convenient focus limiter switch that can lock the focus out of the closes focus making it focus faster when used as a moderate telephoto lens that is excellent portraits as well.
Other features of the AT-X 100 PRO D are:
Tokina One Touch Focus Clutch Mechanism for fast easy switching between manual and Auto focus.
55mm non-rotating filter thread for use with macro ring flashes and special effects filters.
The AT-X 100 PRO D also comes with a deep bayonet mounted lens hood.
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