Olympus M.Zuiko Digital ED 100-400mm F5.0-6.3 IS Review

August 4, 2020 | Mark Goldstein | Rating star Rating star Rating star Rating star Half rating star

Sharpness at 400mm

The sharpness tests for this review were carried out using a real-world subject rather than a test chart. The Olympus M.Zuiko Digital ED 100-400mm F5.0-6.3 IS lens was attached to a Olympus OM-D E-M1X camera 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

The full frame at 400mm

Both centre and edge sharpness are excellent from f/6.3-f/8. Diffraction starts to adversely affect the image sharpness from f/11 onwards.

Aperture Centre Crop Edge Crop
f/6.3 f5_6.jpg f5_6.jpg
f/8 f8.jpg f8.jpg
f/11 f11.jpg f11.jpg
f/16 f16.jpg f16.jpg
f/22 f16.jpg f16.jpg