Tokina AT-X840 AF D (80-400mm f4.5)

Overview

80mm

400mm

In 1996 Tokina created a new class of telephoto lens when it introduced the original AT-X 840 AF. This was the smallest zoom lens available that had a bright f/5.6 aperture at 400mm. Now Tokina has recreated the lens for the digital age.

Still the smallest SLR lens available that zooms to 400mm, the AT-X 840 AF D has a smooth and quick Internal Focusing system that means the all-metal inner barrel that houses the heaviest glass elements does not have to rotate when the lens focuses, making it much faster than the previous models.

Optically, the AT-X840 AF D has new multi-coatings applied to the elements that are formulated to compensate of the highly reflective CCD and CMOS sensors in today’s Digital SLR cameras. The new multi-Coating greatly reduces the chance of internal flare or ghost reflections.

A built-in low-profile tripod collar makes for a well-balanced camera/lens combination when using a tripod or monopod. For best results, Tokina always recommends using a tripod or monopod with telephoto lenses.

Another feature that makes the AT-X 840 AF D an excellent traveling companion is the zoom lock switch. The zoom can be locked at 80mm to so there is not chance of “zoom creep” when the camera and lens are being carried over the shoulder.

Tokina kept ease of use in mind with the new AT-X 840 AF D, the new BH-725 lens hood with the a PL Assist spring loaded thumb wheel allows a circular polarizer or special effects filter to be rotated while the lens hood is in place. No more removing the hood to change the position of the filter.

Lens Specifications

Generic Lens Specifications

Lens Type: Zoom
IS / VR / OS: None
Min Focal length (mm): 80
Max Focal Length (mm): 400
Number of Elements: 16
Element Groups: 10
Max Aperture: 4.5
Minimum Aperture: 32
Diaphragm Blades: 8
Closest Focus Distance (m): 2.5
Maximum Magnification: 1.5
Filter Type: Screw In
Filter Diameter (mm): 72
Diameter at widest (mm): 79
Lens Length (mm): 136
Weight (g): 1020

Details

Mount availability:	Canon EOS, Nikon-D,

Focal length:	80 to 400mm

Maximum aperture:	f/4.5-5.6

Minimum aperture:	f/32

Optical construction:	16 elements in 10 groups

SD glass:	One elements

Coatings:	Multi-layer

Angle of view:	29° 50’ to 6°13’

Minimum focus distance:	2.5m (8.2 ft.)

Reproduction ratio:	1: 5.4

Zooming system:	Rotary type

Number of diaphragm blades:	8

Filter size:	72mm

Maximum outer diameter:	77.2mm (3.0in.)

Dimensions:	3.1 in. (79mm) X 136.5 mm (5.4in.)

Weight:	1020 g (35.9 oz..)

Lens Hood	BH-725

Availability:	June, 2006

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User Lens Reviews

Average user rating from: 1 user(s)


Overall rating (weighted)		4.8
Sharpness		5.0
Build Quality		4.0
AF Speed		5.0
Value for Money		5.0

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3 of 3 people found the following review helpful

Compact , Quality, Well Priced Lens, Wednesday, 04 April 2007


Overall rating (weighted)		4.8
Sharpness		5.0
Build Quality		4.0
AF Speed		5.0
Value for Money		5.0

I bought this lens after trying a tameron 100-500 and returning it to the store I bought it at. I exchanged the Tameron for the Tokina 80-400mm f4.5-5.6 AT-X 840D, a hoodman loupe, a 72mm uv filter, and a tamerac adventure9 camera bag. That was the difference in price. I am happy to say am very happy with this lens. Its build quality is rock solid, and the size is very convenient to carry around. I have been testing it for a few days and am very happy with the pictures I have been getting. The auto focus in good light is very good in very low light it tends to hunt a Bit, but that's alright with me I didn't buy it for low light photography. At 400mm and no image stabilizing function you definitely need to use a tripod mono-pod or a been bag to keep it steady. I would recommend this lens.

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