Certificate of Provenance & Condition
Authenticated by LensSeed
Contax / Yashica
Yashica Yashinon-Dx 50mm f2
Authenticated
Condition assessment
ABWeighted across
three axes
three axes
Optical5/5
Mechanical5/5
Cosmetic4/5
Certificate №LS-7B8BB3E19C59
Serial52101380
MountM42
Focal length50mm
Max aperturef/2
Issued22 June 2026
Honest defect disclosure
DustMinimal
HazeNone
FungusNone
SeparationNone
Coating marksNone
Oil on bladesNone
Scan to verifyLS-7B8BB3E19C59lensseed.com/cert
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