Tamron 100-400mm F/4.5-6.3 Di VC USD Review

January 12, 2018 | Mark Goldstein |

Tamron 100-400mm F/4.5-6.3 Di VC USD Sharpness at 400mm

The sharpness tests for this review were carried out using a real-world subject rather than a test chart. The Tamron 100-400mm F/4.5-6.3 Di VC USD lens was attached to a Canon 5DS R body, which in turn was mounted on a sturdy tripod. Self-timer mode was activated. Slight tonal changes are due to slight changes in natural light during the session.

The full frameThe full frame at 400mm

Both center and edge sharpness are OK wide-open at f/6.3 and good from f/8 through to f/16. At f/22 sharpness is beginning to drop off due to diffraction.

Aperture Centre Crop Edge Crop
f/6.3 f6_3.jpg f6_3.jpg
f/8 f8.jpg f8.jpg
f/11 f11.jpg f11.jpg
f/16 f16.jpg f16.jpg
f/22 f22.jpg f22.jpg
f/32 f32.jpg f32.jpg
f/45 f45.jpg f45.jpg