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Canon EF 24-105mm f/4L IS USM Gordon Laing, June 2006 / updated August 2007

Canon 24-105mm results : Outdoor / Resolution / Corner sharpness / Fringe and macro / Geometry / Vignetting

Canon EF 24-105mm chromatic aberration and fringing, tested with EOS 5D

  To measure purple fringing caused by lens chromatic aberrations and sensor blooming, we photographed a test chart, left, with areas of very high contrast. We tested each lens at its widest and longest focal lengths with the aperture wide open using a Canon EOS-5D in Aperture Priority mode. The crops are taken from the upper left corner of the chart and presented here at 100%.

All three lenses exhibited small degrees of fringing at wide angle, although nothing to be concerned about. Zoomed-in to their longest focal lengths, the EF 24-70 and EF 17-40mm delivered very clean results, leaving the EF 24-105 with a small amount of fringing - again, little to be concerned about though.




Click here for the Canon EF 24-105mm lens
Canon EF 24-105mm f/4L IS USM
Canon EF 24-70mm f/2.8L USM
Canon EF 17-40mm f/4.0L USM
Canon 24-105mm at 24mm f4
Canon 24-70mm at 24mm f2.8
Canon 17-40mm at 17mm f4
24-105mm at 24mm f4
24-70mm at 24mm f2.8
17-40mm at 17mm f4
Canon 24-105mm at 105mm f4
Canon 24-70mm at 70mm f2.8
Canon 17-40mm at 40mm f4
24-105mm at 105mm f4
24-70mm at 70mm f2.8
17-40mm at 40mm f4


Canon EF 24-105mm macro, tested with EOS 5D

To measure macro performance we photographed a chart using settings which delivered the maximum possible reproduction. The dark lines are 10mm apart. Each lens was tested with the Canon EOS-5D at f8 in Aperture Priority mode.

Of the three lenses, the older EF 24-70mm delivered the maximum close-up reproduction. That said, none of the three can really be described as impressive performers when it comes to macro work. In its favour though, the EF 24-105mm lens delivered a less geometrically distorted image than the EF 24-70mm when focused as close as it was able.

Canon EF 24-105mm f/4L IS USM
Canon EF 24-70mm f/2.8L USM
Canon EF 17-40mm f/4.0L USM
24-105mm at 105mm f8
Max area of 154x104mm
  24-70mm at 70mm f8
Max area of 130x90mm
  17-40mm at 40mm f8
Max area of 166x110mm


Canon 24-105mm results continued...

Outdoor / Resolution / Corner sharpness / Fringe and macro / Geometry / Vignetting
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