Canon EF 300mm f/4.0L IS USM Overview

Telephoto prime lens | Canon EF | 2530A004
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Product description
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The Canon EF 300mm F4.0L IS USM is a relatively compact (but at 1190 grams not particularly lightweight) L-series telephoto prime lens, compatible with Canon's full-frame and APS-C DSLRs. The 300mm F4 trades brightness for portability, but a dual-mode (for normal and panning shooting) image stabilization system allows you to shoot at shutter speeds up to two stops lower than would otherwise be possible without a tripod. Optical construction consists of 15 elements in 11 groups, including two UD (ultra low-dispersion) elements and the lens is weather-sealed.

Quick specs
Lens type Prime lens
Focal length 300 mm
Image stab. Yes (2 stops)
Lens mount Canon EF
Max aperture F4
Min aperture F32
Min focus 1.50 m (59.06)
Max magnification 0.24×
Weight 1190 g (2.62 lb)
Length 221 mm (8.7)

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