Canon lens 55-250mm stm

The Canon EF-S 55-250mm f/4-5.6 IS STM is a telephoto zoom lens designed for Canon DSLR cameras with an EF-S mount, primarily intended for APS-C sensor cameras. This lens is ideal for users who need a versatile telephoto zoom option for wildlife, sports, portraits, or distant subjects, offering a longer focal length range at a relatively affordable price point.

Key Features:

1. Focal Length: 55-250mm

   • The lens offers a significant zoom range, allowing you to capture distant subjects with clarity. On APS-C sensor cameras, the crop factor extends the effective focal length to about 88-400mm, making it suitable for wildlife photography, sports events, or other distant subjects.

2. Aperture: f/4-5.6

   • The lens features a variable aperture, with a maximum aperture of f/4 at 55mm and f/5.6 at 250mm. While not the fastest aperture, it provides sufficient light for most outdoor and daylight shooting situations. In lower light conditions, a tripod or higher ISO may be required to achieve sharp shots.

3. Image Stabilization (IS):

   • The Image Stabilization (IS) system helps to reduce the effects of camera shake when shooting handheld, especially at longer focal lengths or slower shutter speeds. This makes it easier to capture sharp images at slower shutter speeds, compensating for the natural instability that occurs with long lenses.

4. STM (Stepping Motor):

   • The STM (Stepping Motor) technology provides smooth, quiet, and accurate autofocus. This makes it especially useful for video shooting, as it reduces autofocus noise, which can be picked up by the microphone during recording. The lens also provides fast and precise focusing when capturing stills.

5. Compact and Lightweight Design:

   • Weighing just about 375 grams (0.83 lbs), the EF-S 55-250mm lens is relatively lightweight and portable for a telephoto zoom, making it easier to carry around for extended periods, especially for travel or outdoor shooting.

6. Close Focusing Distance:

   • The lens has a minimum focusing distance of about 0.85 meters (2.8 feet), which allows for moderate close-up photography, making it versatile for capturing both distant and closer subjects.

7. Optical Design:

   • The lens features an advanced optical design with UD (Ultra-low Dispersion) glass elements that help minimize chromatic aberrations and deliver sharper, clearer images, especially at the longer end of the zoom range.

Applications:

• Wildlife Photography: The 250mm focal length (effective 400mm on APS-C sensors) makes this lens a great option for capturing wildlife and distant subjects.
• Sports Photography: Its zoom range allows you to zoom in on fast-moving action, making it useful for sports events, especially when you're unable to get close to the subject.
• Portraits: The telephoto nature of the lens makes it useful for portraits, as it allows you to keep a comfortable distance from your subject while providing good background compression and subject isolation.
• Travel Photography: Its relatively compact size and versatility make it a good travel lens, capable of handling everything from landscapes to distant subjects.
• Videography: The STM motor ensures smooth and quiet focusing, which is especially beneficial for video work.

Compatibility:

• The Canon EF-S 55-250mm f/4-5.6 IS STM is designed for Canon DSLR cameras with an APS-C sensor (such as the Rebel series, 90D, or 7D series). It is not compatible with full-frame Canon cameras, as it is an EF-S mount lens specifically tailored for crop-sensor bodies.