Tokina AT-X 242 AF ( 24-200mm f3.5)

Overview

24mm

200mm

The AT-X 242 AF is the first lens to start at 24mm and zoom all the way to 200mm, and is currently the widest zoom range available starting at 24mm. It is constructed using a chrome plated brass mount plate and a combination of aluminum and composite lens barrels to reduce weight while maintaining strength and durability.

Optically, the 242 uses high quality optical glass multicoated lens elements created by Hoya Corporation, the world’s largest manufacturer of optical glass. Two Aspherical lens elements and one SD (super low Dispersion) glass element are employed in the optical design to insure sharpness across the film plane. The aspherical elements are each molded as one piece of optical glass rather than a resin laminated to a glass core.

An Internal Focusing mechanism gives this lens fast auto focus. Internal focus means the 72mm filter threads do not move during focusing. This is of great advantage when a special effects filter, such as a circular polarizer, is used. With an internal focusing lens it is not necessary to readjust the position of the filter every time the focus is changed. Focus distance is indicated on the manual focus ring.

Like the rest of the lenses in the AT-X series, The AT-X 242 AF is what is commonly referred to as a parafocal lens, meaning when focus is achieved at a telephoto Focal length, it is possible to zoom back to a wide angle and maintain focus on the subject.

Lens Specifications

Generic Lens Specifications

Lens Type: Zoom
IS / VR / OS: None
Min Focal Length (mm): 24
Max Focal Length (mm): 200
Number of Elements: 15
Element Groups: 13
Max Aperture: 3.5
Minimum Aperture: 22
Diaphragm Blades: 6
Closest Focus Distance (m): 0.8
Maximum Magnification: 1.5
Filter Type: Screw In
Filter Diameter (mm): 72
Diameter at widest (mm): 81
Lens Length (mm): 89
Weight (g): 690

Details

Mount availability:	Canon EOS, Minolta AF, Nikon-D, Pentax AF

Focal length:	24 to 200mm

Maximum aperture:	f/3.5-5.6

Minimum aperture:	f/22

Optical construction:	15 elements in 13 groups

Aspherical elements:	Two

SD glass:	2 elements

Coatings:	Multi-layer

Angle of view:	84° 10’ to 12° 20’

Minimum focus distance:	0.8m (2.9 ft.)

Reproduction ratio:	1: 5.97

Focusing system:	Internal focusing

Zooming system:	Rotary type

Number of diaphragm blades:	6

Filter size:	72mm

Maximum outer diameter:	81.8mm (3.2in.)

Overall length:	89.0 mm

Weight:	690 g

Accessories, included:	Dedicated lens hood, fitted soft case

Warranty:	3 years

Suggest List Price:	TBA

Overview

Lens Specifications

Details

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