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 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. Supports drop-in filtersDrop-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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The APO 200-500mm F2.8 EX DG is the world?EURTMs first Ultra-Telephoto Zoom Lens that offers a fast aperture of F2.8 at 500mm focal length. It covers the widely used 200 to 500mm focal length range, and maintains its fast F2.8 aperture over the entire zoom range. Four SLD (Special Low Dispersion) glass elements provide excellent correction for all types of aberrations and produce a high level of optical performance throughout the entire zoom range.
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Available mount(s) | Canon EF, Nikon F, Sigma |
Application(s) | Portrait, Sports, Wildlife |
Category(s) | Tele zoom |
Multiplier | 1× |
Stabilizer | no |
Focal length | 200 - 500 mm (2.5× zoom) |
Lens construction | N/A |
Angle of view |
35mm: N/A digital: N/A |
Number of blades | N/A |
Maximum aperture | wide: f/2.8 tele: f/2.8 |
Minimum aperture | wide: N/A tele: N/A |
Minimum focusing distance | N/A |
Magnification | N/A |
Filter size | N/A |
Size | N/A |
Weight | N/A |
Notes |
LCD panel to display focal length; an APO Tele Converter 2x EX DG II is included with the lens that converts the focal length range to 400-1000mm at aperture of f/5.6 |
AF speed | N/A |
AF sound | |
Internal focusing | N/A |
Internal zoom | N/A |
Fix front lens | N/A |
Mount type | metal |
Weather sealed | N/A |
Drop in filter | yes |
Ultrasonic AF | N/A |
Stepping motor AF | no |
APS-C sized circle | no |
Low dispersion lens element | yes |
Hard case | N/A |
Soft case | N/A |
Lens hood | N/A |
Tripod adapter | N/A |
Discontinued | yes |