A Soviet Fed screw-mount lens — the 53mm f/2.8 for LTM/M39 cameras.
The Fed 53mm f/2.8 M39 is a Soviet-era standard prime for Leica Thread Mount cameras. Fed (Feliks Edmundovich Dzerzhinsky) was a Ukrainian camera factory that produced Leica copies and lenses. The 53mm is slightly longer than the standard 50mm. The f/2.8 is modest. Soviet glass from the Fed factory — basic but functional.
Optical performance is basic — Soviet manufacturing quality. Sharpness is acceptable when stopped down. The 53mm is slightly unusual — most standard lenses are 50mm. The f/2.8 is slow for a standard prime. Coatings are basic. Colour rendition has the typical Soviet cool tone. Build quality is heavy metal — functional but agricultural.
M39/LTM mount — Leica Thread Mount compatible. Adapts to Leica M via LTM adapter and to mirrorless via appropriate adapters. Weight varies — solid Soviet metal. Build quality is basic but durable. The M39 mount provides compatibility across LTM cameras and mirrorless via adapters. The 'Leia' in the listing may be a misspelling of 'Leica'.
Extremely cheap — Soviet glass at minimum cost. Check for haze, fungus, and smooth focus — Soviet lenses often have stiff or gritty controls. A curiosity from the Soviet optical industry. Better M39 standard lenses exist from Japan and Germany. Only for Soviet lens collectors or extreme budget M39 experimentation.