Quantaray 400mm F/6.3 Preset Black Manual Focus Lens for T-Mount (AS-IS)

NOTE: This item is being sold AS-IS and may not be returned or exchanged. Some artifacts and dust in between lens elements that will very likely show in image.

The Quantaray 400mm f/6.3 Preset Manual Focus Lens is a budget-friendly, long telephoto prime designed for manual focus photography, often used with 35mm film SLRs and adapted to digital cameras. It features a fixed f/6.3 aperture and a preset diaphragm system, allowing photographers to set and stop down the aperture manually before taking a shot—ideal for static subjects like wildlife, nature, or distant landscapes. While it lacks modern conveniences like autofocus or image stabilization, its simple optical design and long reach make it a fun, low-cost option for those exploring vintage lenses or long-distance photography.