The Tokina AT-X 107 NH is a fish-eye lens that gives the digital photographer an approximate 180° field of view with dramatic curvature of field or "fish-eye" effect.
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Focal length | 10-17 mm |
Filter diameter | none |
Mount | Canon EF |
Type | fisheye |
Sensor size | crop |
Lens composition | 10 elementów w 8 grupach |
Minimum focusing distance | 0,14m |
Focus type | Autofocus |
Zoom ratio | 1:2,56 |
Minimum aperture | 22 |
Maximum aperture | f/3.5 - 4.5 |
Aperture blades | 6 |
Size (mm) | 69.85 x 70.88 |
Weight (kg) | 0.35 |
Focal lenght type | zoom |
Stabilization | no |
Application | photo |
The AT-X 107 NH only differs from the AT-X 107 DX in that the built-in hood as been removed allowing for a wider image area and more coverage on full-frame sensor (FX) cameras. The front element of the AT-X 107 DX has a newly formulated WR or "Water Repellent" optical coating on the glass. This new coating makes marks such as spots left by water or finger-prints much easier to clean than standard multi-coating.
With the built-in hood removed the lens also fits in a wider variety of underwater housings. The rear optical group of the lens contains 1 SD (Super-Low Dispersion) glass element to reduce the number of elements (pieces of glass) in the optical design in order to make the lens more compact, light-weight and faster focusing.
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