Tokina AT-X 11-20 mm f/ 2.8 PRO DX Lens Manual
Wideangle Zoom Lens for
APS-C Format DSLR Cameras
AF12-28mm F4
TO FIT CANON • NIKON-D
APS-C Sized Sensor Model Only
AT-X 12-28 PRO DX
SUPER WIDE-ANGLE TO SEMI-STANDARD ZOOM
Wide Zoom Range
The new Tokina AT-X 12-28mm F4 lens has a super-wide to standard
zoom range while maintaining a constant fast f/4.0 aperture. This makes
it a very versatile lens for different photo applications such as scenery,
street scenes photography and event coverage. The lens is designed for
DSLR cameras with APS-C (DX) sized sensors.
New Optical Design
A new optical design using aspherical elements and super-low dispersion
glass matches even the highest mega-pixel DX sensors cameras available
today. One aspherical lens element is positioned in the front group. This
together with another precision molded glass aspherical lens element
placed in the rear group ideally focuses marginal light rays and maintains
sharpness at the edges while also correcting distortion. The use of two
different SD (Super-low Dispersion) glass elements,type FK01 and FK03,
correct schromatic aberration. The combination of all these specialized
elements in the optical design yield excellent sharpness and color.
New Auto Focus Mechanism
The new AF “GMR magnetic precision” sensor is capable offset
auto-focus. Tokina placed the new sensor closer to the drive unit in the
lens for faster communication between the controller and AF motor. This
combined with the motor's high-precision focus control yields faster, more
accurate auto-focus.
Additionally, a brand new “SD-M” (Silent Drive-Module) has greatly lowered
the sounds emitted by the auto focusdrive system allowing for much
quieter AF. Both Canon and Nikon mounts have a built-in AF motor to
make them auto-focus compatible with all current camera bodies.
The new Tokina AT-X 12-28mm F4 lens has a super-wide to standard
zoom range while maintaining a constant fast f/4.0 aperture. This makes
it a very versatile lens for different photo applications such as scenery,
street scenes photography and event coverage. The lens is designed for
DSLR cameras with APS-C (DX) sized sensors.
New Optical Design
A new optical design using aspherical elements and super-low dispersion
glass matches even the highest mega-pixel DX sensors cameras available
today. One aspherical lens element is positioned in the front group. This
together with another precision molded glass aspherical lens element
placed in the rear group ideally focuses marginal light rays and maintains
sharpness at the edges while also correcting distortion. The use of two
different SD (Super-low Dispersion) glass elements,type FK01 and FK03,
correct schromatic aberration. The combination of all these specialized
elements in the optical design yield excellent sharpness and color.
New Auto Focus Mechanism
The new AF “GMR magnetic precision” sensor is capable offset
auto-focus. Tokina placed the new sensor closer to the drive unit in the
lens for faster communication between the controller and AF motor. This
combined with the motor's high-precision focus control yields faster, more
accurate auto-focus.
Additionally, a brand new “SD-M” (Silent Drive-Module) has greatly lowered
the sounds emitted by the auto focusdrive system allowing for much
quieter AF. Both Canon and Nikon mounts have a built-in AF motor to
make them auto-focus compatible with all current camera bodies.
◆
The lens is designed for Digital cameras with APS-C sized CMOS and CCD sensors,
not designed for cameras with Full Frame sensors.
• 14 Elements in 12 Groups
• Minimum Focus Distance: 0.25m
• Angle of view: 99.37° - 54.73°
• Filter size: ø77mm
• Minimum Focus Distance: 0.25m
• Angle of view: 99.37° - 54.73°
• Filter size: ø77mm
L
ens Hood BH-77B
The large BH-77B wide-angle
hood with “click-lock” to
stay in place.
AT-X PRO Series
19
P-MO Aspherical Lens
Glass-Moulded Aspherical Lens
Glass-Moulded Aspherical Lens
SD Glass [FK01]
SD Glass [FK03]
SD Glass [FK03]