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Accessory type:Ring Extension TubeDiameter:37 mm52 mm67 mmF:14 mmFor Camera:CanonPentaxRicoh
Producer:All producersFreepowerJJCMitakonNewellSamyangViltroxYongnuo
Price: from to
Allows to lengthen x2 lens focal length. Canon EF mount.
Doubles focal length of lens.