Sharpness at 35mm

For these sharpness tests the Leica Vario-Elmar-T 18-56mm f/3.5-5.6 ASPH lens was attached to a Leica T body, which in turn was mounted on a sturdy tripod. Slight tonal changes are due to slight changes in natural light during the session.

The full frame at 35mm

At 35mm the centre is fairly sharp wide open, with peak performance achieved at f/8. Diffraction sets in at at f/16.

The edges are somewhat soft at f/5 but sharpen up very nicely at f/8.

Aperture	Centre Crop	Edge Crop
f/5
f/8
f/11
f/16