Yashica Auto Yashinon DX 50mm F1.7 with M42 Mount | eBay
Yashica Auto Yashinon DX 50mm F1.7 with M42 Mount | eBay,The Yashica Yashinon 50mm f/1.7 Lens Review,Yashica Auto Yashinon-DX 50mm f1.7,Yashica Auto Yashinon-DX 50mm F1.7 M42 Mount Lens with Case & unique 12mm Mount,Camera lens review: Auto Yashinon-DX 50mm/1.7 M42