Certificate of Provenance & Condition
Authenticated by LensSeed
Contax / Yashica
Yashica 28mm f2.8
Authenticated
Condition assessment
BWeighted across
three axes
three axes
Optical5/5
Mechanical5/5
Cosmetic3/5
Certificate №LS-10E19768F76B
Serial297140
MountContax/Yashica
Focal length28mm
Max aperturef/2.8
Issued22 June 2026
Honest defect disclosure
DustMinimal
HazeNone
FungusNone
SeparationNone
Coating marksNone
Oil on bladesNone
Scan to verifyLS-10E19768F76Blensseed.com/cert
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