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Canon EF 300mm f/2.8L IS II USM

Canon EF Autofocus OIS

Canon EF 300mm f/2.8L IS II USM

Focal length
300 mm
Aperture
f/2.8
Weight
2350 g
Filter diameter
52 mm
Min. focus distance
200 cm
Length
248 mm

At a Glance

This 300 mm telephoto for Canon EF full-frame cameras opens up to f/2.8 and has an optical stabilizer. It weighs 2.35 kg, and the minimum focus distance is 2 m. Fluorite elements, a fluorine coating and a drop-in filter slot are part of its equipment. Its reach suits wildlife, birds and sports.

Good for

  • Wildlife
  • Birds
  • Sports

Worth knowing

  • At 2.4 kg it is heavy: a monopod or tripod helps for longer sessions.

Derived from the manufacturer data, not from our own tests. How we check

Technical Specifications

Min. focal length
300 mm
Max. focal length
300 mm
Max. aperture (min. zoom)
f/2.8
Max. aperture (max. zoom)
f/2.8
Min. aperture
f/32
Elements
16
Groups
12
Weight
2,350 g (5.18 lb)
Filter diameter
52 mm
Min. focus distance
200 cm (78.74 in)
Max. magnification
1:5.6 (0.18×)
Length
248 mm (9.76 in)
Diameter
128 mm (5.04 in)
Released
August 2011

Manufacturer data: global.canon

Last checked: October 13, 2026 (against the manufacturer data) · How we check

Simulate depth of field and angle of view

Compare with other lenses

Which cameras does the Canon EF 300mm f/2.8L IS II USM fit?

The Canon EF 300mm f/2.8L IS II USM is a full-frame lens for Canon EF cameras. On full-frame bodies it uses the whole sensor; on APS-C Canon EF cameras its field of view equals 480 mm in full-frame terms.

Canon EF cameras

With the Canon Mount Adapter EF-EOS R the lens can also be used on Canon RF cameras.

With the Canon Mount Adapter EF-EOS M the lens can also be used on Canon EF-M cameras.

Canon EF 300mm f/2.8L IS II USM compared

Key specs side by side with the most similar Canon EF lenses.

LensCanon EF 300mm f/2.8L IS II USMCanon EF 300mm f/2.8L IS USMSigma 300mm F2.8 APO EX DG HSMCanon EF 300mm f/4.0L IS USM
Focal length300 mm300 mm300 mm300 mm
Max. aperturef/2.8f/2.8f/2.8f/4
Weight2,350 g2,550 g2,400 g1,190 g
Filter diameter52 mm52 mm46 mm77 mm
Min. focus distance200 cm250 cm250 cm150 cm
Length248 mm252 mm214.5 mm221 mm
Autofocusyesyesyesyes
Image stabilizationyesyesnoyes
Open these lenses in the comparison and add more

Canon EF 300mm f/2.8L IS II USM: FAQ

Does the Canon EF 300mm f/2.8L IS II USM have autofocus?

Yes, the Canon EF 300mm f/2.8L IS II USM has autofocus.

Does the Canon EF 300mm f/2.8L IS II USM have image stabilization?

Yes, the Canon EF 300mm f/2.8L IS II USM has optical image stabilization.

How much does the Canon EF 300mm f/2.8L IS II USM weigh?

The Canon EF 300mm f/2.8L IS II USM weighs 2,350 g. It is 248 mm long with a diameter of 128 mm.

What filter size does the Canon EF 300mm f/2.8L IS II USM use?

The Canon EF 300mm f/2.8L IS II USM takes 52 mm screw-in filters.

How close can the Canon EF 300mm f/2.8L IS II USM focus?

The minimum focus distance of the Canon EF 300mm f/2.8L IS II USM is 200 cm, measured from the sensor plane.

Is the Canon EF 300mm f/2.8L IS II USM a full-frame lens?

Yes, the Canon EF 300mm f/2.8L IS II USM covers full frame. On APS-C cameras its field of view equals 480 mm in full-frame terms.

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