Product Description
Wide-angle to semi-standard zoom lens
As the successor of the AT-X 124 PRO DX II (12-24mm F/4), which has been loved
by photo enthusiasts the world over for many years, the AT-X 12-28 has an
increased telephoto focal length from 24 to 28mm for greater use and
versatility. We have provided a new optical design to match even the 20
mega-pixel DX sensors. In addition, we also improved factors such as color
balance and blur quality, also known as Boken. This lens is designed to match
the power of high-megapixel sensors in a conventional wide-angle to
semi-standard zoom.
Achieves higher image definition through the use of glass-moulded aspherical
lens elements and inclusion of ultra-low dispersion glass.
An aspherical P-MO lens element is positioned in the front group. This, together
with a moulded glass aspherical lens placed in the rear group, ideally corrects
for aberrations while also correcting distortion. The use of SD glass (ultra-low
dispersion glass) FK01 and FK03, which emulate fluorite glass in performance,
aims to eliminate chromatic aberration.
New auto focus mechanism
The new AF control sensor in the lens is a GMR (magnetic precision) sensor
capable of high-resolution auto focus is mounted close to the drive unit for
better efficiency. Fast AF speed is achieved through the high-precision focus
control. Furthemore, adoption of a newly developed SD-M (Silent Drive-Module)
has greatly lowered the sounds emitted by the AF drive. The Nikon mount version
has an auto focus motor built-in.
Compact body design with good handing
The size of the lens is the same as the AT-X 124 PRO DX II maintaining its very
compact design. Through the use of a one-touch focus clutch AF/MF mechanism,
just slide the manual focus ring forward for AF or rearward for MF operation.
The lens has a good manual focus feeling as though the MF operation were damped
for precise operation.
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