Name Manufacturer / Model	Mount Bayonet	Type Category	Year Released	Focal mm	Aperture f/	Weight g
YashicaSuper Yashinon 600mm F/8	M42	Telephoto	—	600mm	f/8	1900g
YashicaSuper Yashinon 800mm F/8	M42	Telephoto	—	800mm	f/8	3000g
YashicaSuper Yashinon-DX 135mm F/2.8	M42	Telephoto	—	135mm	f/2.8	417g
YashicaSuper Yashinon-DX 35mm F/2.8	M42	Wide	—	35mm	f/2.8	178g
YashicaSuper Yashinon-R 135mm F/2.8	M42	Telephoto	1961	135mm	f/2.8	550g
YashicaSuper Yashinon-R 200mm F/4.5	M42	Telephoto	1961	200mm	f/4.5	550g
YashicaSuper Yashinon-R 300mm F/5.5	M42	Telephoto	1961	300mm	f/5.5	700g
YashicaSuper Yashinon-R 35mm F/2.8	M42	Wide	1961	35mm	f/2.8	260g
YashicaSuper Yashinon-R 400mm F/6.3	M42	Telephoto	1961	400mm	f/6.3	950g
YashicaSuper Yashinon-R 600mm F/8	M42	Telephoto	—	600mm	f/8	1900g
YashicaSuper Yashinon-R 800mm F/8	M42	Telephoto	—	800mm	f/8	3000g
YashicaYashinon-DS 21mm F/3.3	M42	Wide	—	21mm	f/3.3	—
YashicaYashinon-DX 21mm F/3.3	M42	Wide	1967	21mm	f/3.3	130g
YashicaYashinon-R 75-230mm F/4.5	M42	Zoom	—	75-230mm	f/4.5	—
YashicaYashinon-R 90-190mm F/5.8	M42	Telephoto	—	90-190mm	f/5.8	550g
YasuharaMoMo100 43mm F/6.4 Soft Focus	CANON EF	Prime	2016	43mm	f/6.4	145g
Yongnuo35mm F/2 EF	CANON EF+ NIKON F	Wide	2015	35mm	f/2	155g
Yongnuo40mm F/2.8 F	NIKON F	Prime	2017	40mm	f/2.8	130g
Yongnuo50mm F/1.4 EF/F	CANON EF	Portrait	2018	50mm	f/1.4	572g
Yongnuo50mm F/1.8 EF	CANON EF+ CANON RF, NIKON F	Portrait	2014	50mm	f/1.8	120g
Yongnuo50mm F/1.8 EF II	CANON EF	Portrait	2018	50mm	f/1.8	162g
YongnuoMF 60mm F/2 Macro EF/F	CANON EF	Macro	2018	60mm	f/2	586g
YUS135mm F/2.8 Automatic	CONTAX/YASHICA	Telephoto	—	135mm	f/2.8	—
YUS28mm F/2.8 Automatic	CONTAX/YASHICA	Wide	—	28mm	f/2.8	—
YUS75-150mm F/3.9 Automatic	CONTAX/YASHICA	Zoom	—	75-150mm	f/3.9	—
YUSAutomatic 135mm F/2.8 Type 2	CONTAX/YASHICA	Telephoto	—	135mm	f/2.8	—
YUSAutomatic 135mm F/2.8 Type 3	CONTAX/YASHICA	Telephoto	—	135mm	f/2.8	—
YUSAutomatic 28mm F/2.8 Type 2	CONTAX/YASHICA	Wide	—	28mm	f/2.8	—