The Canon EF 70-200mm f/4L IS II USM is a versatile telephoto zoom lens designed for Canon EF-mount DSLRs, offering a constant f/4 maximum aperture, advanced optical features, and improved image stabilization. Here are some key features and specifications:
Versatile Telephoto Zoom:
Designed for full-frame Canon EF-mount DSLRs, but also compatible with APS-C models, providing a 112-320mm equivalent focal length range.
Constant f/4 Maximum Aperture:
Maintains a consistent f/4 aperture throughout the zoom range, balancing performance and portability.
Optical Construction:
Optical design includes one fluorite element and two ultra-low dispersion glass elements to reduce chromatic aberrations and color fringing.
Super Spectra Coating:
Applied to individual elements to minimize ghosting and flare, ensuring greater contrast and color accuracy, especially in challenging lighting conditions.
Revised Optical Image Stabilizer (OIS):
Compensates for up to five stops of camera shake, allowing for handheld shooting in low-light conditions.
Offers three stabilization modes: Standard, During Exposure Only, and Panning.
Ring-Type Ultrasonic Motor (USM):
Enables fast, precise, and quiet autofocus performance.
Internal focusing system ensures the lens length does not change during focusing.
Full-time manual focus override for instant manual adjustments.
Focus Limiter Switch:
Allows you to limit the focusing range to two different options: 3.3′-infinity or 9.8′-infinity, enhancing autofocus speed.
Nine-Blade Diaphragm:
Rounded diaphragm with nine blades contributes to a pleasing bokeh and smooth out-of-focus areas.
L-Series Build and Weather-Sealed:
Part of Canon’s prestigious L-series, ensuring high optical and build quality.
Sealed against dust and moisture for reliable performance in challenging environmental conditions.
Tripod Mount Ring Compatibility:
Optional AII(WII) Tripod Mount Ring is available for improved stability when using the lens on a tripod or monopod.
Teleconverter Compatibility:
Compatible with optional EF 1.4X and EF 2X teleconverters, extending the focal length and versatility of the lens.
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