DeJur Auto Tele Converter 2X for Canon (not authenticated)

This item is a black camera accessory, specifically a teleconverter designed to double the focal length of a lens. The physical body is constructed primarily of metal with a matte black finish and features a ribbed rubberized focus or grip ring around the center barrel. It is equipped with mounting alignment dots in red on both ends. Visible text printed directly onto the barrel in white sans-serif lettering reads "DeJUR AUTO TELE CONVERTER 2X FOR CANON". The overall condition appears to be used, displaying minor surface wear, dust, and slight scuffing particularly along the top rim and edges, which is consistent with vintage photographic equipment from the late 20th century. The identification of the brand and specifications rests entirely on the clearly legible white lettering printed on the exterior casing. No internal glass elements can be evaluated from this angle, and the item remains unverified for mechanical functionality or internal condition.

Based on what I can see in the photograph, this item appears to be a vintage camera accessory bearing the inscription 'DeJUR AUTO TELE CONVERTER 2X FOR CANON'. The physical body exhibits a matte black metal finish with a ribbed rubberized grip ring and white lettering. Based on visual inspection alone, the piece displays minor surface wear, dust, and scuffing along the edges, which is typical for vintage photographic equipment. However, I can't verify the internal condition of the glass elements, optical clarity, or mechanical functionality from a photo; physical inspection and testing would be required to assess its operational state. Assuming the branding and specifications indicated by the exterior lettering are accurate, comparable vintage teleconverters of this type and era generally trade within a modest market range of $25 to $50, driven largely by niche demand from film photography enthusiasts and vintage camera collectors. This estimated value is heavily dependent on the assumed identification; if physical inspection reveals that the item is a generic third-party equivalent without the stated brand association, or if it suffers from internal optical issues such as fungus, haze, or severe scratches, the value would likely drop to nominal parts-value territory of $10 to $15. To move beyond a working assumption regarding its origin and functionality, an in-person evaluation by a camera technician would be necessary.