Canon EF 70-300mm f/4-5.6 IS USM, 1/320, F/8, 210 mm, ISO-400 Resized to 600 px wide with no sharpening.

Sigma 55-200mm f/4-5.6, 1/320, F/8, 200 mm, ISO-400 Resized to 600 px wide with no sharpening.

Canon EF 70-300mm f/4-5.6 IS USM 100% crop, no sharpening

Sigma 55-200mm f/4-5.6 100% crop, no sharpening

Canon EF 70-300mm f/4-5.6 IS USM 100% crop, no sharpening

Sigma 55-200mm f/4-5.6 100% crop, no sharpening