The Canon EF-S 55-250mm IS Telephoto Zoom Lens is designed for the consumer grade user who desires an affordable tool that offers Canon optical quality, a wide range of focal lengths and image stabilization at a reasonable price. The EF-S mount on this lens will only work on EF-S mount cameras. The lens itself produces a reduced image circle that will not produce an acceptable image without significant vignetting on digital SLRs with a larger image sensor. The most sought after element of the EF-S 55-250mm lens is the image stabilization system. This lens is capable of shooting effectively in low light conditions down to shutter speeds of 1/15. Canon claims low light effectiveness and blur free images while shooting up to four stops lower than normal with similar lenses that are not IS equipped. Despite having the optics that make IS available, the EF-S 55-250mm lens is surprisingly light and compact. Additionally, Canon strove to increase image quality in this value lens by including a UD optical element designed to reduce chromatic aberrations, thereby increasing image quality throughout the entire range of focal lengths the lens covers. Overall, this lens is a decent performer for the price and makes a great complement for the beginner photographer who is happy with the stock lens that came with their current Digital Rebel series (or other EF-S mount) camera body and is looking to increase their photo shooting versatility.
From the Manufacturer
Incorporating Canon's Optical Image Stabilizer technology, this Canon 55-250mm telephoto zoom lens captures long distance, low-light shots far better than many comparable lenses, helping you photograph the far-off action of athletes or zoom in for an intimate portrait with a blurred background. The high-zoom-ratio lens is equivalent to a focal length of 88-400mm in the 35mm format (when used on Canon EOS cameras compatible with EF-S lenses). More significantly, the image stabilizer effect creates an equivalent shutter speed of roughly four stops faster than the same size lens without an image stabilizer. In other words, if the slowest shutter speed you can hold a 250mm lens steadily is normally 1/250th of a second, this Canon lens will let you hand-hold shutter speeds as slow as 1/15th of a second. The lens also boasts a UD-glass lens element to correct chromatic aberration to create excellent image quality throughout the zoom range. Delivering an excellent performance at an affordable price for all photographers, the 55-250mm lens carries a one-year warranty.
- Focal length: 55-250mm
- Maximum aperture: f/4 to f/5.6
- Lens construction: 12 elements in 10 groups, including one UD-glass element
- Diagonal angle of view: 27 degrees (at 50 feet) to 6 degrees (at 15 feet), with APS-C image sensors
- Focus adjustment: DC motor, gear-driven (front focusing design)
- Closest focusing distance: 3.6 feet (0.31x maximum close-up magnification)
- Filter size: 58mm
- Dimensions: 2.8 inches in diameter and 4.3 inches long
- Weight: 13.8 ounces
- Warranty: 1 year
This telephoto zoom lens is designed with Canon's Optical Image Stabilizer technology while retaining compactness and lightness, in response to demands of photographers. This high zoom ratio lens is equivalent to a focal length of 88-400mm in the 35mm format (when used on Canon EOS cameras compatible with EF-S lenses), and the image stabilizer effect equivalent to a shutter speed about 4 stops faster than the same size lens without Image Stabilizer. In other words, if the slowest shutter speed you could formerly hold a 250mm lens steadily was 1/250th of a second, with Canon's 4-stop stabilization correction, you could hand-hold at shutter speeds as slow as 1/15th of a second. It also uses a UD-glass lens element to correct chromatic aberration for excellent image quality throughout the zoom range. This new EF-S telephoto lens with great features delivers excellent performance at an affordable price for all photographers.