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Canon EF 75-300mm f/4-5.6 III USM Lens Review

The Canon EF 75-300mm f/4-5.6 III USM telephoto Zoom Lens is a slight step up from the Canon EF 75-300mm f/4-5.6 III lens in that this lens adds a micromotor USM focusing system for slightly quieter and slightly faster autofocus operations.


  • Canon EF 75-300mm f/4-5.6 III USM - $234.99

*Pricing from Manufacturer's website - Current selling price may be different.

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What I Like

  • Lightweight
  • Metal Mount
  • Relatively inexpensive

What I Don't Like

  • Micro USM not as fast or silent as true USM
  • Not internally focused
  • Lens shade not included

The Bottom Line

When purchased on sale this lens can be a decent value and a good entry level zoom lens. With that said, however, I would recommend saving up and getting the Tamron 70-300mm f/4-5.6 VC USD instead as you will get better build quality, faster and quieter autofocus and the lens hood is included.

Overall User Rating

4.34 out of 5

based on 814 user reviews online.

: 56% (457.6)
: 30% (240.25)
: 9% (69.89)
: 4% (28.63)
: 2% (17.63)



Focal Length 75 - 300 mm
Max Aperture f/4-5.6
Minimum Aperture f/
Minimum Focus distance 59.04 inches
Maximum Magnification 0.25x
Number of Elements 13
Number of Groups 9
Aperture Blade Design Not Specified
Number of Aperture Blades 7
Filter Size 58 mm
Diameter 2.8 in.
Length 4.8 in.
Weight 1.06 lbs.
Lens Mount Construction Metal
Tripod Collar None
Weather Sealed No
Distance Scale No
Image Stabilization No
Lens Shade Optional

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