Canon EF 4.5-5.6 100-400mm USM L IS 3.94 (5) = very-good
Sigma AF 5.6 300-800mm EX 3.50 (2) = very-good
Minolta AF 4.5-6.7 100-400mm APO 3.35 (5) = good
Sigma AF 4-6.3 50-500mm EX RF 3.20 (3) = average
Nikkor AF 4.5-5.6 80-400mm ED IF VR 3.03 (3) = average
Sigma AF 4.5-5.6 135-400mm APO Asph. RF 2.86 (4) = average
Sigma AF 5-6.3 170-500mm APO Asph. RF 2.78 (4) = average
Tokina AF 4.5-5.6 80-400mm AT-X 2.39 (4) = sub-average
Generic AF 4.5-6.7 100-400mm 2.31 (4) = sub-average
Tamron AF 5.6 200-400mm LD 2.10 (5) = poor
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