These lenses use the original Canon FD glass, known for its distinct visual character, but are fitted with new, robust mechanics by companies like True Lens Services (TLS) or GL Optics to meet current filmmaking standards. This makes them a popular, more affordable alternative to the legendary Canon K35 vintage cine lenses.

Key Features:

Vintage Canon FD Optics: Delivers a desirable cinematic aesthetic with a warm color tone, lower contrast, and smooth, soft skin tones.
Full-Frame Coverage: Covers larger image sensors, making them suitable for a wide range of modern professional cinema cameras.
Professional Rehousing: Lenses are rebuilt with robust, standardized mechanical cine housings (e.g., PL mount, 300° focus rotation, uniform barrel diameters).
Consistent Mechanics: Features like standardized 110mm front diameters and consistent gear positions simplify on-set changes for matte boxes and follow focus systems.
Circular Bokeh: Rehoused lenses typically replace the original 8-blade iris with a new 14-16 blade iris for smoother, more consistent, and circular bokeh (out-of-focus areas).
Fast Apertures: Many of the primes in the set have fast maximum T-stops (e.g., T1.3 to T2.9), allowing for excellent low-light performance and beautiful depth of field control.
Versatile Focal Lengths: A standard 9-lens set offers a comprehensive range, typically from ultra-wide (14mm/20mm) to medium telephoto (135mm), for covering diverse shooting needs.