Canon EF 70-300mm f/4.5-5.6 DO IS USM Review
Canon EF 70-300mm f/4.5-5.6 DO IS USM Sharpness Cont... 2
Sharpness at 100mm
Sharpness tests for this review were carried out using a real-world subject rather than a test chart. The Canon EF 70-300mm f/4.5-5.6 DO IS USM lens was attached to a Canon EOS 5D MkII for this test and mounted on a Manfrotto tripod. A short two second self timer was used to reduce vibration as well as the mirror lock up mode. Photographs were taken indoors in ambient light so any changes in colour or exposure are due to that.
The full frame at 100mm
Moving up through the zoom range, aperture sharpness still stays even and good at 100mm. As with 70mm, the lens appears to be sharper at f/11.
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