Sharpness Cont... 4

Sharpness at 70mm

The sharpness tests for this review were carried out using a real-world subject rather than a test chart. The Tamron SP 24-70mm F/2.8 Di VC USD lens was attached to a Canon 5D Mark III 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 frame at 70mm

Center sharpness is outstanding between f/4 and f/8, with some softness evident wide open at f/2.8. At f/11 to f/22 sharpness is beginning to drop off significantly. Edge sharpness is best at f/8.

Aperture	Centre Crop	Edge Crop
f/2.8
f/4
f/5.6
f/8
f/11
f/16
f/22

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review, lens, 24mm, zoom, f2.8, 35mm, standard, 50mm, image stabilisation, 70mm, vibration compensation, anti-shake, tamron, vc, 24-70mm, Tamron SP 24-70mm F2.8 Di VC USD, 24-70