Canon EF 70-300mm f/4-5.6 IS USM Lens Specification

• Type: Telephoto Zoom Lens
  Mount: Canon EF Mount (compatible with full-frame and APS-C DSLR cameras)

Optical Features:

• Focal Length: 70mm to 300mm
• Maximum Aperture: f/4 at 70mm to f/5.6 at 300mm
• Minimum Aperture: f/32 - f/38 (depending on focal length)
• Lens Construction: Approx. 17 elements in 12 groups
• Special Elements: 1 Ultra-Low Dispersion (UD) element to reduce chromatic aberration and enhance image clarity
• Coatings: Super Spectra Coating to minimize ghosting and flare

Autofocus:

• AF Motor: Ring-type Ultrasonic Motor (USM) for fast, precise, and quiet autofocus
• Full-time Manual Focus Override: Yes
• Focus Drive: Internal focusing system
• Minimum Focusing Distance: Approx. 1.2 meters (3.94 feet)
• Maximum Magnification: Approx. 0.21x

Image Stabilization:

• Type: Optical Image Stabilizer (IS)
• Effectiveness: Up to 4 stops of shake correction (depends on shooting conditions)
• IS Modes:
  • Mode 1: Standard IS for general shooting
  • Mode 2: Panning IS for horizontal movement
  • Mode 3: IS activated only during exposure (for unpredictable movements)

Physical and Mechanical:

• Filter Size: 67mm
• Maximum Diameter: Approx. 80mm
• Length: Approx. 143mm
• Weight: Approx. 630 grams (1.39 lbs)
• Diaphragm Blades: 9 rounded blades for smooth bokeh
• Zoom Mechanism: Rotating zoom ring
• Weather Sealing: No (not weather resistant)

Compatibility:

• Works on Canon full-frame DSLRs and APS-C DSLRs (effective focal length on APS-C approx. 112-480mm equivalent)
• Compatible with Canon Extender EF teleconverters (check model-specific compatibility)

Other Features:

• Lens Hood: Included (petal-shaped hood)
• Lens Cap: Included
• Supplied Accessories: Lens pouch or case (varies by package)