Glass

Front element

Flawless

Rear element

Flawless

Imaging

Sharpness

26/26 line pairs/mm (horizontal/vertical)

Spatial consistency

All quadrants equal sharpness

Aperture consistency

Normal wide-open and stopped down

Chromatic aberration

Normal

Lens flare

Normal

Mechanicals

Manual focus ring

Flawless

Autofocus

n/a

Active stabilization

n/a

Aperture blades

Smooth, clean, full range of motion

Zoom ring

n/a

Distance scale

n/a

Filter ring

Accepts filter

Cosmetic

Barrel

Light amount of tiny scratches on some of the section edges

Tripod ring

n/a

Hood/caps

Minor scuffs and scratches

Internal dust

Light

Notes

Perfect glass and the highest resolving power I’ve ever seen. Comes with hood, caps, and original Leica lens case.