Pentax ZX-M Digital Camera User Manual


 
TOKINA
AUTOFOCUS LENSES
CAMERAS & LENSES
179
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1-800-290-6750 • www.bhphotovideo.com
AT-X PRO FIXED FOCAL LENGTH LENSES
AF 17mm f/3.5 AT-X Pro
This super wide angle lens features Tokina’s exclusive “Focus Clutch Mechanism” for faster, smoother auto
focus as well as smooth manual focus. It also features a floating element auto focus system for high resolution
and contrast, an all glass aspherical lens element, and all aluminum lens barrels with a chrome-plated, brass
mount plate. The lens elements are made of higher quality HLD (high refraction, low dispersion) glass to
provide even illumination across the whole film plane and prevent light fall-off. Filter size is 77mm.
For Canon (TO1735PCAF).................................389.95 For Nikon (TO1735PNAF).................................389.95
For Minolta
(TO1735PMAF)................................................................................................................................389.95
AF 300mm f/2.8 AT-X Pro IRF
Features the exclusive “Focus Clutch Mechanism” for auto and manual focusing that
is much faster and smoother than other lenses. As with all Tokina AT-X AF lenses,
this lens is constructed using all aluminum lens barrels and a chrome-plated, brass
mount plate. The first lens group is made from two elements of high quality SD
(Super Low Dispersion) glass to minimize chromatic aberration. The patented
Internal Rear Focus (IRF) system moves smaller lens groups within the lens barrel,
which is useful for long telephoto lens designs. The IRF system also allows faster
auto focusing and a more compact lens design.
For Canon
(TO30028PCAF) .......2299.95 For Nikon (TO30028PNAF).........2299.95
For Minolta
(TO30028PMAF)...............................................................................2299.95
AT-X (Advanced Technology-Xtra) signifies a special group of lenses that are manufactured
without compromise. Combining advanced design and fabrication technology with a unique
optical configuration system developed by Tokina, has made advanced features,
high performance, light weight and compact designs possible. Tokina’s proprietary
AT-X lens technology has evolved toward optical perfection for nearly 20 years.
They have made continuous improvements and each new model is a further refine-
ment of previous designs and materials. The current PRO series, recognizable by
their distinctive Gold rings, continues this evolution.
Mechanisms:
• All metallic moving parts are coated with a special lubricant to
improve durability
• Tokina’s independently developed technology maintains the high
precision of mechanical fittings, accurately measured in microns
• Micron tolerances also give smooth operation and durability to
operating rollers and internal focus cams
• Brass is used in the lens mount to maintain high precision. Other
mechanisms are plated with hard chrome for optimum durability
Exterior Finish:
• PRO models have a hardened Armalite finish to increase durability
and give a top-quality feel and finish
• Ergonomic designs
emphasize control,
grip and ease of operation with textured
rubber used on zoom and focus barrels.
Operation:
• Use of special alloy Duralumin for metal parts provides excellent
durability, stabilizes torque and provides better handling. It also
maintains smoother operation under all conditions.
• A special lubricant formulated to perform even under extreme
temperatures, is used on moving parts
• Unique lens coating makes the lenses resistant to flare and
ghosting, and helps them achieve faithful color reproduction
The Tokina Difference:
PHOTO - VIDEO - PRO AUDIO