Canon EF 400mm f/2.8L IS II USM review

Canon by name and big gun by nature, it's a super-telephoto beast

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As part of our test of the Canon EF 400mm f/2.8 IS II USM we've shot our SFR Plus chart at every aperture to check for sharpness and fringing across the frame. The resulting images are then fed through the Imatest Master software.

The graph below shows the results of the test, with each of the coloured lines depicting the lenses performance at the centre of the frame (in blue), and an average of the results for the mid-range (pink) and edge (yellow) frame.

Canon ef 400mm f 2 8l is ii usm sharpeness
Canon ef 400mm f/2.8l is ii usm sharpeness

The graph shows that the Canon EF 400mm f/2.8L IS USM performs well across the aperture range. Despite the progressive fall towards f/22 the results for this lens are impressive with little drop in sharpness across the frame. The best results are achieved between f/2.8 and f/7.1.


Canon ef 400mm f 2 8l is ii usm fringing
Canon ef 400mm f/2.8l is ii usm fringing

This graph shows that signs of fringing are low across the aperture range, whilst results at the middle and edge frame are higher at the centre fringing is almost non-existent.

Tech Specs

Product TypeLens
Fixed Focal Length400 mm
Lens Mount TypeCanon EF/EF-S
Maximum Aperture Fixed2.8
Brand NameCanon
Filter Attachment Diameter52 mm
Lens TypeSuper Telephoto
Depth343 mm

Canon EOS DSLR Cameras

ManufacturerCanon, Inc
Product Model4412B005
Product NameEF 4412B005 Lens
Product LineEF
Manufacturer Part Number4412B005
Manufacturer Website Address
Marketing Information

Ultra-high-performance L-series super-telephoto lens, featuring a 4 stop Image Stabilizer with 3 modes. The EF 400mm f/2.8L IS II USM delivers outstanding image quality in a robust design ideal for sports and wildlife photography.

Weight (Approximate)3.85 kg