Tokina 300mm f/2.8 AT-X 300 AF Pro | $1744.95 | |  |
The AT-X 300 AF PRO lens features the exclusive “Focus Clutch Mechanism.”, a signature of the Tokina PRO series lenses, which provides a faster, smoother auto focus operation and a smooth manual focus action not normally found in today’s auto focus lense
s.
As with all the lenses in Tokina’s AT-X AF series, the AT-X 300 AF PRO 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) gla
ss that minimizes the secondary spectrum caused by chromatic aberration. These lenses use FK01 and FK02 optical materials which gives them SD (APO) qualities. The front element is protected by a 112mm Tokina multicoated MC Normal filter that comes with th
e lens
The AT-X 300 AF PRO lens also features a patented IRF, Internal Rear Focus system. This system moves smaller lens groups within the lens barrel, which is useful for long telephoto lens designs. The IRF system has a number of advantages includin
g faster auto focusing and more compact lens design.
A 35.5mm circular polarizer, mounted in a slip in rear drawer is now available. The drawer is geared with a thumb wheel so the filter can be rotated while it is in the lens, ask for the Tokina RC-P
L filter.
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