Manufactured year:1948
Manufacturer: Vidmar Camera Co. USAU
Lens: Kodak Ektar f3.7/105mm
Screen size: 60×45mm

Manufactured year:1952
Manufacturer: Leitz  Germany
Lens: Summitar f2/50mm
Screen size: 24×36mm

Manufactured year:1984
Manufacturer: Nippon Kogaku K.K  Japan
Lens: Nikkor f1.4/50mm
Screen size: 24×36mm

Manufactured year:1989
Manufacturer: Rollei-Werk Franke  Germany
Lens: Planar HFT f2.8/80mm
Screen size: 60×60mm

Resources : Korea Camera Museum