Sigma has published the MTF charts for the 150-600mm f/5-6.3 DG OS HSM Contemporary lens.
Click on “Compare Images” below to see how it fares against the Sports version. Note that I chose the “Diffraction MTF Chart” as it reflects what to expect in real-world images (for sharpness and contrast), as opposed to the “Geometrical MTF chart” which is the result of a theoretical calculation.
As expected, the S is a bit better at 600mm throughout most of the frame, but the C slightly surpasses its bigger sibling at 150mm.
- Red lines: Measurements at 10 LP/mm (contrast)
- Green lines: Measurements at 30 LP/mm (fine detail)
- Dotted lines: Meridional measurements
- Solid lines: Sagittal measurements