Lens finder
Pentax smc FA 250-600mm f/5.6 ED (IF)
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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. 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. 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 unique smc P-FA zoom 250-600mm F5.6 lens provides a moderately long zoom to extremely long zoom range. It features a fixed aperture setting of 5.6 throughout the zoom range and uses a 43mm rear filter. An internal focusing system ensures faster and smoother focusing while a high-refraction extra low dispersion (ED) glass element produces high-resolution, high-contrast images with true-to-life color rendition. This lens is great for capturing candid shots from a distance.
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Pentax smc FA 250-600mm f/5.6 ED (IF) Specification
| Available mount(s) | Pentax K |
| Application(s) | Wildlife |
| Category(s) | Tele zoom |
| Multiplier | 1× |
| Stabilizer | no |
| Focal length | 250 - 600 mm (2.4× zoom) |
| Lens construction | 18 elements in 16 groups |
| Angle of view |
35mm: 9.9-4.1° digital: N/A |
| Number of blades | N/A |
| Maximum aperture | wide: f/5.6 tele: f/5.6 |
| Minimum aperture | wide: f/32 tele: f/32 |
| Minimum focusing distance | 350 cm |
| Magnification | 0.2× |
| Filter size | 43 mm |
| Size | ∅ 135 × 440 mm |
| Weight | 5050 g |
| Notes |
built-in hood |
| AF speed | N/A |
| AF sound | |
| Internal focusing | yes |
| Internal zoom | N/A |
| Fix front lens | yes |
| Mount type | N/A |
| Weather sealed | N/A |
| Drop in filter | yes |
| 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 | N/A |
| Tripod adapter | N/A |
| Discontinued | yes |
Pentax smc FA 250-600mm f/5.6 ED (IF) Reviews
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