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Bodzash Photography and Astronomy: In-Depth Review: Tokina 80-400 f4.5-5.6 AT-X
http://bodzashphotoastro.blogspot.com/2011/08/in-depth-review-tokina-80-400-f45-56-at.html
Wednesday, August 31, 2011. In-Depth Review: Tokina 80-400 f4.5-5.6 AT-X. Dimensions: 5.4 x 3 in. Weight: 2 lbs 5 ozs. Maximum Aperture: f4.5. Front Element: rotating, extending. Optical arrangement: 16 elements in 10 groups. Autofocus Mechanism: Mechanical drive. Closest Focus: 100 inches. Maximum magnification: 1:5.4. Read on to find out! The lens nearly doubles in length when zoomed to 400mm. The lock switches are a nice touch. The non-removable tripod collar: you'll either live it or hate it. At its ...