Lens finder
Tokina AF100-300mm f/4.0 AT-X
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Full frame sized imageLenses that create APS-C sized image are designed for digital only. They cannot be used on cameras that have image sensor larger than the APS-C format. These lenses are not suitable for film cameras either. No Ultrasonic AFLenses with ultrasonic focusing mechanism tend to be quiter and faster than traditionally focusing lenses. No stepping motor AFLenses with stepping motor focusing mechanism are better for contrast based focusing, and are quiter and faster than traditionally focusing lenses. One or more Low Dispersion lens element is usedLow Dispersion lens elements help to reduce chromatic aberration. Not stabilizedImage stabilization helps to reduce blur caused by hand shake, especially at high focal length or in low light situations. Image stabilization can give 1 to 3 stop advantage over none stabilized lens, based on the reciprocal rule. Metal mountCheaper lenses are usually equipped with plastic mount, while more expensive, professional lenses have metal mount. In general, metal mounts are more durable, and a good thing to have when lenses are changed a lot. When a camera is used mainly with one lens, the material of the lens mount is not that important. Internal FocusingInternally focusing lenses don't change their size while setting focus. The front lens is fixedThe fixed front lens is not rotating during zoom and/or focusing. This allows the photographer to use petal shaped lens hood. Fixed front lenses also make the use of polarization filters a lot easier. No drop-in filter supportDrop-in filters are used in those lenses where either the front lens is too large, or the field of view doesn't permit the use of traditional filters at the front of the lens. Usually bright tele and ultra-wide angle lenses support this filter type. |
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This large aperture telephoto zoom lens provides the high quality normally associated with a prime lens. It is the only 100-300 lens in with a fast, constant aperture of f4 throughout its entire zoom range. The use of Tokina's IF (internal focus) system for the forward lens group allows a minimum focus down to two meters. It also gives one of the fastest autofocus speeds in wide diameter zoom lenses.
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Tokina AF100-300mm f/4.0 AT-X Specification
| Available mount(s) | Canon EF, Nikon F, Sony / Minolta A |
| Application(s) | Portrait, Sports, Wildlife |
| Category(s) | Tele zoom |
| Multiplier | 1× |
| Stabilizer | no |
| Focal length | 100 - 300 mm (3× zoom) |
| Lens construction | 15 elements in 11 groups |
| Angle of view |
35mm: 24,5-8,3° digital: N/A |
| Number of blades | N/A |
| Maximum aperture | wide: f/4 tele: f/4 |
| Minimum aperture | wide: f/32 tele: N/A |
| Minimum focusing distance | 200 cm |
| Magnification | N/A |
| Filter size | 77 mm |
| Size | ∅ 83 × 230 mm |
| Weight | 1540 g |
| Notes |
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| AF speed | N/A |
| AF sound | |
| Internal focusing | yes |
| Internal zoom | N/A |
| Fix front lens | yes |
| Mount type | metal |
| Weather sealed | N/A |
| Drop in filter | no |
| Ultrasonic AF | no |
| Stepping motor AF | no |
| APS-C sized circle | no |
| Low dispersion lens element | yes |
| Hard case | N/A |
| Soft case | included |
| Lens hood | BH-774 (included) |
| Tripod adapter | N/A |
| Discontinued | yes |
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