Canon EF 400mm f/2.8 L IS USM LENS

CANON LENS EF 400mm f/2.8 L IS USM TELEPHOTO LENS.

The Canon EF 400mm f/2.8L IS II USM Lens is a powerhouse designed for professional photographers who need exceptional reach, blazing-fast aperture, and top-notch image quality. Here's a detailed breakdown:

1. Focal Length and Aperture:

   • Focal Length: 400mm
   • Maximum Aperture: f/2.8
   • This combination of focal length and wide aperture makes it ideal for sports, wildlife, and action photography. You can isolate subjects beautifully with that creamy bokeh.

2. Optical Construction:

   • The lens comprises 16 elements arranged in 12 groups.
   • It features Fluorite optics (specifically G2 and G4 fluorite elements) to minimize chromatic aberrations and enhance image sharpness.
   • There are no UD (Ultra-low Dispersion) elements in this lens, but the Fluorite elements compensate effectively.

3. Angle of View:

   • Diagonal Angle of View: Approximately 6°10'
   • This narrow angle of view is perfect for capturing distant subjects with precision.

4. Focus System:

   • Inner-focusing mechanism with a focusing cam ensures smooth and precise autofocus.
   • The minimum focusing distance is 2.7 meters (approximately 8.86 feet).

5. Filter Size:

   • The lens accepts 52mm drop-in filters.
   • These filters are convenient for adjusting exposure or adding creative effects without compromising optical quality.

6. Physical Dimensions:

   • Max. Diameter x Length: 6.4 x 13.5 inches (163 x 343mm)
   • Weight: 135.8 ounces (3850 grams)
   • Yes, it's a substantial piece of glass, but that's the price you pay for such remarkable performance.

7. Image Stabilization:

   • The lens features Canon's excellent Image Stabilization (IS) system.
   • It compensates for camera shake, allowing you to shoot handheld at slower shutter speeds.
   • Up to four stops of stabilization are available, which is incredibly useful for telephoto work.

8. Build Quality and Features:

   • The lens is part of Canon's prestigious L-series (Luxury) lineup, known for its robust build and weather-sealing.
   • A fluorine coating on the front and rear elements repels dust, moisture, and fingerprints.
   • The tripod collar is detachable and rotatable, making it versatile for different shooting scenarios.

9. Performance:

   • The EF 400mm f/2.8L IS II USM delivers tack-sharp images even wide open at f/2.8.
   • Autofocus is lightning-fast, thanks to the Ring-Type Ultrasonic Motor (USM).
   • The nine-blade diaphragm produces pleasing, rounded bokeh.

10. Use Cases:

    • Sports photographers love this lens for capturing athletes in action.
    • Wildlife enthusiasts appreciate its reach for distant bird and animal photography.
    • Low-light situations (like night sports events) are where that f/2.8 aperture shines.

In summary, the Canon EF 400mm f/2.8L IS II USM Lens is a workhorse for professionals who demand uncompromising quality. It's an investment, but one that pays off in stunning images.