Additional information:
The Tokina AT-X 16.5-135 mm DX f/ 3.5-5.6
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diagonal angle of view 81°19'- 12°14'
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Equivalent focal length for Canon 26.4-216 mm
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Equivalent focal length for Nikon 24.75-202.5 mm
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diameter 84 mm
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max. focal length 14 cm
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max. magnification 1:5.43
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minimum aperture 22 - 36
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internal focusing
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It is not equipped with a built-in motor AF drive for Nikon
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multilayer coating
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rotation angle of the focusing ring approx. 40°
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both Canon and Nikon have the same direction of the zoom ring rotation
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BH777 petal hood and carrying case are included with the lens
The Tokina AT-X 16.5-135mm DX F/3.5-5.6is an all-purpose zoom lens with a wider angle for DSLR Canon EF-F and Nikon DX APS-C cameras and cannot be used on full-frame cameras. The optical scheme of the lens includes three aspherical elements: one molded and two composite elements which secure high sharpness and contrast. Two elements of low-dispersion glass combat chromatic aberrations and vignetting.
A small rotation angle of the focusing ring, on the one hand, makes autofocus faster, and on the other hand, decreases focusing accuracy in manual mode.
A very long period from the time of the first announcement to delivery, as well as five expensive glass elements, average quality slow zoom played a mean trick - the owners have not been found at http://www.flickr.com (as for Oct., 2010).
Evaluation of Tokina designations:
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AT-X (advanced technology extra) - the lens is designed by means of advanced and new technologies and high-quality materials.
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AF for autofocus.
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DX - for digital SRL Canon EF-S and Nikon DX APS-C cameras only.
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IF - internal focusing (the lens does not extend, the front element do not rotate).
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SD - Super Low Dispersion glass is used to minimize aberrations and increase contrast
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AS - the use of aspherical lenses.
Links to online resources:
PDF Files:
Posted by: dv Date of publication: 25.10.2010
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