Optical measurement system that reads lens focal length and aperture in real time and transmits data to follow-focus systems, enabling precise focus tracking during lens changes mid-shot.
Definition
True Lens Services (TLS) is a company specializing in rehousing, focusing on the professional refurbishment and modernization of vintage lenses for use in film production. The rehousing process involves the complete mechanical overhaul of classic lenses into new, precisely manufactured housings that meet the requirements of today's cinema cameras and production standards.
TLS has made a name for itself particularly through the refurbishment of Soviet and Eastern European lenses such as the Helios, Mir, and Jupiter series. These vintage optics are freed from their original still photography housings and built into robust, cine-ready mounts featuring standardized gear rings for follow focus and consistent front diameters.
Practical Application
Lenses refurbished by TLS are primarily used in independent film production, music videos, and commercial projects where distinctive optics with an organic look are desired. The rehousing service offers a cost-effective way to acquire high-quality cine lenses that meet the specific aesthetic requirements of modern productions.
Technical Details
TLS lenses are typically delivered with uniform 80mm front diameters, standardized flange focal distances, and robust aluminum housings. The focus and aperture rings are precisely calibrated and marked with professional markings.