Camera lens (unverified maker)

This item is a vintage manual focus telephoto camera lens, appearing to feature a focal length of 135mm and a maximum aperture of f/2.8, with a 55mm filter thread diameter based on the legibly printed white text around the front element rim reading "1:2.8 f=135mm 55ø". The lens barrel is constructed of black metal with a textured rubberized focus and aperture ring grip, displaying a silver-colored metal mount section near the base. A small, oval gold-colored quality control sticker with green text reading "PASSED" is affixed near the base. The overall physical condition appears tidy with minimal visible external wear, and the front lens cap is detached and resting beside the lens on the surface. The identification of the specific manufacturer is not directly readable from this angle and remains unverified, though the design is consistent with vintage photographic accessories from the mid-to-late 20th century. Quality indicators include traditional all-metal and glass construction typical of mechanical photographic equipment from the film camera era. The attribution rests entirely on the visible specifications printed on the lens rim, with no confirmed maker's mark immediately apparent in the image.

Based on what I can see in the image, this item is a vintage manual focus telephoto camera lens featuring a 135mm focal length, an f/2.8 maximum aperture, and a 55mm filter thread diameter. The physical condition appears relatively clean with tidy metal and rubberized components, and a 'PASSED' quality control sticker is visible near the base. However, the specific manufacturer is not legible from this angle, and I must treat the maker as unverified. I can't verify internal optical clarity, mechanical smoothness, or glass condition from a photo alone, and would need physical inspection to confirm whether there is internal fungus, haze, or scratch damage. The basis for the value estimate assumes the lens is in working condition, drawing on typical market behavior for generic or third-party vintage 135mm f/2.8 lenses from the mid-to-late 20th century. Demand for vintage manual lenses remains moderate among hobbyists adapting older glass to modern digital cameras, though generic brands generally command modest prices. If physical examination reveals optical defects, or if the lens turns out to be a lesser replica or non-functional parts donor, the value would drop significantly to the $10-$20 range. Conversely, if an in-person inspection reveals a highly regarded independent maker mark, the value could potentially shift upward. To fully evaluate and confirm its operating state and potential brand identity, physical examination of the internal elements and mount assembly would be required.