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

Mini Review

I originally went to check out the EF 70-300mm f/4-5.6L IS USM Lens for a friend, and was so impressed I bought one myself. I already had the excellent EF 70-200m f/4.0 L IS lens, and the EF 100-400mm f4.5-5.6L IS USM, but since owning this, those two have hardly been used.  I’ve owned this lens since the middle of 2011 and it’s definitely become a firm favourite of mine. It’s pretty dam sharp too, and is so good I traded the EF 70-200mm f/4 IS against a second 5D-mk-III body in 2013. I’ve found the EF 70-300mm f/4-5.6L IS USM matches the EF 70-200m f/4.0 L IS in almost every department; it’s just as sharp, easy to handle, well balanced, not too heavy, compact and has the extra reach which is so useful. It partners extremely well with EOS 5D-mk-III and I’ve also used it to great effect with my 100D, where it becomes a 112-480mm.

The EF 70-300mm f/4-5.6L IS USM Lens a lens I never leave home without; perfect for portraits, wildlife and landscape photography. It’s not the fasted lens around, but the 4-stop IS works really well and I’ve used it quite successfully hand held and in low light situations too. On my first trip to Antarctica I was advised to hire a EF 300mm F/2.8 L IS (mk-I) by one of the lead photographers. This is one hell of a lens, but you know what .. I got better images using my EF 70-300mm f/4-5.6L IS USM Lens, simply because it’s so much more manageable, has better IS, and was far easier to use.

Online Reviews


 EF 70-300mm f/4-5.6L IS USM

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

Designed to deliver ultra-high quality images along with lightning fast operation. The Canon EF 70-300 f/4-5.6L IS USM telephoto zoom lens features two Ultra Low Dispersion (UD) elements for improved image quality and reduced chromatic aberration, incorporates a floating focusing mechanism for sharpness from close up to infinity, plus an IS system that increases usability by approximately four stops. The Image Stabilization system also features a function that allows it to continue to operate, even when used on a rigid tripod. An optional Canon Tripod Mount C (W II) is available as an accessory, for balanced mounting on a tripod or monopod. The lens has a white exterior. The lens is dust and water-resistant, and features a Fluorine coating that resists smears and fingerprints, and significantly eases lens cleaning.

The EF 70-300mm f/4-5.6L IS USM is part of Canon’s prestigious L series offering performance excellence with a versatile zoom range and superb image quality in a robust and compact design.

  • High performance telephoto zoom lens
  • Part of Canon’s acclaimed L series
  • 4 stop Image Stabilizer
  • Two UD elements
  • Highly resistant to dust and water
  • 8 blade circular aperture
  • Quiet & fast autofocus
  • Compatible with a tripod collar

Image size n/a
35mm film equivalent focal length n/a
Angle of view (horzntl, vertl, diagnl) 29º – 6º 50′, 19º 30′ – 4º 35′, 34º – 8º 15′
Lens construction (elements/groups) 19/14
No. of diaphragm blades 8
Minimum aperture 32-45
Closest focusing distance (m) 1.2
Maximum magnification (x) 0.21 (at 300mm)
Distance information Provided
Image stabilizer 4-stops
AF actuator Ring USM (Full time Manual focus)
Dust/moisture resistance Yes¹
Filter diameter (mm) 67
Max. diameter x length (mm) 89 x 143
Weight (g) 1050
Magnification – Extension Tube EF12 II 0.29-0.04
Magnification – Extension Tube EF25 II 0.38-0.09
Lens Cap E-67U / E-67II
Lens hood ET-73B
Soft case LP1424
Extenders NC

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