The Canon EF-S 55-250mm f/4-5.6 IS STM is a compact and versatile telephoto zoom lens designed for Canon APS-C DSLR cameras. It's particularly well-suited for wildlife, sports, and travel photography, offering a significant reach in a lightweight package.

---

🔧 Key Specifications

Focal Length: 55–250mm (88–400mm equivalent on APS-C sensors)

Maximum Aperture: f/4 at 55mm, f/5.6 at 250mm

Minimum Aperture: f/22–32

Lens Construction: 15 elements in 12 groups

Diaphragm Blades: 7 (circular aperture)

Minimum Focusing Distance: 0.85 meters (2.79 feet)

Maximum Magnification: 0.29x

Filter Size: 58mm

Image Stabilization: Up to 3.5 stops

Autofocus Motor: Stepping Motor (STM)

Dimensions: 70 x 111.2 mm (2.8 x 4.4 inches)

Weight: 375 grams (13.2 oz)

---

🎥 Video Features

STM Technology: Provides smooth and quiet continuous autofocus, ideal for video recording.

Full-Time Manual Focus: Allows for manual adjustments without switching modes.

---

📸 Optical Performance

Ultra-Low Dispersion (UD) Element: Reduces chromatic aberrations for high clarity and color fidelity.

Super Spectra Coating: Minimizes flare and ghosting, enhancing contrast and color balance.

Non-Rotating Front Element: Beneficial when using polarizing filters.

---

🧰 Included Accessories

Lens Hood: ET-63

Lens Case/Pouch: LP1019

Rear Lens Cap: Lens Dust Cap E

---

For more detailed information and to check for firmware updates, visit the Canon official page.

If you have specific questions about using the EF-S 55-250mm f/4-5.6 IS STM with certain cameras or accessories, feel free to ask!