Minolta AF mount

α mount, image by Steve Harwood (Image rights)

The α mount (or Minolta AF mount) was introduced with Minolta's first popular fully automatic autofocus single lens reflex camera Minolta 7000. It is a bayonet lens mount with three main components: The bayonet, the set of electrical contacts, and a rear engagement to couple the camera's lens focusing motor drive with the lense's focusing mechanics. The introduction of the Minolta 7000 in 1985 was a historical step to fully automatic SLR systems for the mass market.

Minolta	Minolta Dynax (Europe,Africa,Asia)	Minolta Maxxum (America)	Minolta Alpha (Japan,China)	launch date	focusing motor in camera	support of zoom motor in lens	support of focusing motor in lens	frame format
5000 AF		5000	5000	1986	yes	no	no	35mm
7000 AF		7000	7000	1985	yes	no	no	35mm
9000 AF		9000	9000	1985	yes	no	no	35mm
	3000i	3000i	3700i	1989	yes	no	no	35mm
	5000i	5000i	5700i	1989	yes	no	no	35mm
	7000i	7000i	7700i	1988	yes	no	no	35mm
	8000i	8000i	8700i	1990	yes	no	no	35mm
	2xi	2xi		90s	yes	yes	no	35mm
	3xi	3xi	3xi	1991	yes	yes	no	35mm
	5xi	5xi	5xi	1992	yes	yes	no	35mm
	7xi	7xi	7xi	1991	yes	yes	no	35mm
	9xi	9xi	9xi	1992	yes	yes	no	35mm
	300si	300si/350si/RZ 300si/RZ 330si	101si	1995	yes	no	no	35mm
	303si	QTsi	360si	1999	yes	no	no	35mm
	404si	STsi	Sweet S	1999	yes	no	no	35mm
	500si	400si/450si/RZ 400si/RZ 430si	303si	1993	yes	no	no	35mm
RD-175				1995	yes	no	no	2"
	500si Super	500si/RZ 530si	303si Super	1995	yes	no	no	35mm
	505si	HTsi		1998	yes	no	no	35mm
	505si Super	XTsi	Sweet	1998	yes	no	no	35mm
	600si	600si	507si	1993	yes	no	no	35mm
	650si			90s	yes	no	no	35mm
	700si	700si	707si	1993	yes	no	no	35mm
	800si	800si	807si	1997	yes	no	no	35mm
	SPxi	SPsi		1992	yes	no	no	35mm
	STsi			90s	yes	no	no	35mm
	3/4	4	α-Sweet II L	2002	yes	no	yes	35mm
	3L	3L		2003	yes	no	yes	35mm
	5	5	α-Sweet II	2001	yes	no	yes	35mm
	7	7	α-7	2000	yes	no	yes	35mm
	9	9	α-9	1998	yes	no	yes	35mm
	9Ti		α-9Ti	1999	yes	no	yes	35mm
	KonicaMinolta Dynax (Europe,Africa,Asia)	KonicaMinolta Maxxum (America)	KonicaMinolta Alpha (Japan,China)	launch date	focusing motor in camera	support of zoom motor in lens	support of focusing motor in lens	frame format
	30/40	50		2004	yes	no	yes	35mm
	60	70	α-70	2004	yes	no	yes	35mm
	5D	5D	α-Sweet Digital	2005	yes	no	yes	APS
	7D	7D	α-7 Digital	2004	yes	no	yes	APS
Sony				launch date	focusing motor in camera	support of zoom motor in lens	support of focusing motor in lens	frame format
α 100				2006
α 200				2008	yes	no	yes	APS
α 230				2009	yes	no	yes	APS
α 300				2008	yes	no	yes	APS
α 330				2009	yes	no	yes	APS
α 350				2008	yes	no	yes	APS
α 380				2009	yes	no	yes	APS
α 390				2010	yes	no	yes	APS
α 450				2010	yes	no	yes	APS
α 500				2009	yes	no	yes	APS
α 550				2009	yes	no	yes	APS
α 560				2011	yes	no	yes	APS
α 580				2010	yes	no	yes	APS
α 700				2007	yes	no	yes	APS
α 850				2009	yes	no	yes	35mm
α 900				2008	yes	no	yes	35mm
α 33				2010	yes	no	yes	APS
α 55				2010	yes	no	yes	APS
α 77				2011	yes	no	yes	APS
α NEX Camera Mount Adapter				2010	no	no	yes	APS