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Provenance & certification
LensSeed tag7-240Serial number511341
Chinon
Chinon 55mm f1.7
M4255mmf/1.7
฿4,850Sold
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Condition assessed 20/1/2026
How we gradeOptical
5.0/5Mechanical
5.0/5Cosmetic
4.0/5AB
Honest disclosure
MinimalDust
NoneHaze
NoneFungus
NoneSeparation
NoneCoating marks
NoneOil on blades
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Lens heritageExact match
Chinon 55mm f1.7
The Chinon 55mm f/1.7 is a vintage M42 standard prime made in Japan from the late 1960s to around 1975, often attributed to Tomioka design heritage and prized as an overlooked, characterful hidden gem that can beat pricier f/1.4 fifties wide open.
The history below is for this exact model — it matches the lens you’re viewing.
Introduced
1967–1975
Optical formula
6 elements in 5 groups
