Name Manufacturer / Model	Mount Bayonet	Type Category	Year Released	Focal mm	Aperture f/	Weight g
Sigma28-105mm F/2.8-4 DG	PENTAX K+ CANON EF, MINOLTA/SONY A	Zoom	2005	28-105mm	f/2.8	405g
Sigma28-105mm F/3.8-5.6 ASPH IF UC-III ZEN	PENTAX K+ CANON EF, MINOLTA/SONY A	Zoom	1999	28-105mm	f/3.8	275g
Sigma28-105mm F/4-5.6 UC ZEN	PENTAX K+ CANON EF, MINOLTA/SONY A	Zoom	1993	28-105mm	f/4	340g
Sigma28-105mm F/4-5.6 UC-II ZEN	PENTAX K+ CANON EF, MINOLTA/SONY A	Zoom	1998	28-105mm	f/4	343g
Sigma28-135mm F/3.8-5.6 ASPH IF Macro	PENTAX K+ CANON EF, MINOLTA/SONY A	Macro	2000	28-135mm	f/3.8	410g
Sigma28-200mm F/3.5-5.6 DG Macro	PENTAX K+ CANON EF, MINOLTA/SONY A	Macro	2005	28-200mm	f/3.5	380g
Sigma28-200mm F/3.8-5.6	PENTAX K+ CANON EF, MINOLTA/SONY A	Zoom	1993	28-200mm	f/3.8	—
Sigma28-200mm F/3.8-5.6 ASPH UC ZEN	PENTAX K+ CANON EF, MINOLTA/SONY A	Zoom	1996	28-200mm	f/3.8	450g
Sigma28-300mm F/3.5-6.3 DG Macro	PENTAX K+ CANON EF, MINOLTA/SONY A	Macro	2005	28-300mm	f/3.5	490g
Sigma28-300mm F/3.5-6.3 Macro	PENTAX K+ CANON EF, MINOLTA/SONY A	Macro	2003	28-300mm	f/3.5	460g
Sigma28-70mm F/2.8 EX ASPH	PENTAX K+ CANON EF, MINOLTA/SONY A	Zoom	1998	28-70mm	f/2.8	600g
Sigma28-70mm F/2.8 EX ASPH DF	PENTAX K+ CANON EF, MINOLTA/SONY A	Zoom	2001	28-70mm	f/2.8	645g
Sigma28-70mm F/2.8 EX DG	PENTAX K+ CANON EF, MINOLTA/SONY A	Zoom	2004	28-70mm	f/2.8	510g
Sigma28-70mm F/2.8-4	PENTAX K+ CANON EF, CANON FD, CONTAX/YASHICA, KONICA AR, MINOLTA MD, MINOLTA SR, MINOLTA/SONY A, NIKON F, NIKON F DX, OLYMPUS OM	Zoom	2002	28-70mm	f/2.8	245g
Sigma28-70mm F/2.8-4 DG	PENTAX K+ CANON EF, CANON EF-S, MINOLTA/SONY A, NIKON F, NIKON F DX	Zoom	2005	28-70mm	f/2.8	255g
Sigma28-70mm F/2.8-4 UC	PENTAX K+ CANON EF, CANON FD, CONTAX/YASHICA, KONICA AR, MINOLTA MD, MINOLTA SR, NIKON F, NIKON F DX, OLYMPUS OM	Zoom	1995	28-70mm	f/2.8	—
Sigma28-70mm F/2.8-4 UC ZEN	PENTAX K+ CANON EF, MINOLTA/SONY A	Zoom	1994	28-70mm	f/2.8	285g
Sigma28-70mm F/3.5-4.5	PENTAX K+ MINOLTA/SONY A, OLYMPUS OM, YASHICA AF	Zoom	1988	28-70mm	f/3.5	460g
Sigma28-70mm F/3.5-4.5 IA ZEN	PENTAX K+ MINOLTA/SONY A	Zoom	1992	28-70mm	f/3.5	350g
Sigma28-70mm F/3.5-4.5 UC ZEN	PENTAX K+ CANON EF, MINOLTA/SONY A, YASHICA AF	Zoom	1989	28-70mm	f/3.5	320g
Sigma28-80mm F/3.5-5.6 ASPH Macro	PENTAX K+ CANON EF, MINOLTA/SONY A	Macro	1996	28-80mm	f/3.5	255g
Sigma28-80mm F/3.5-5.6 ASPH Macro HF	PENTAX K+ CANON EF, MINOLTA/SONY A	Macro	2000	28-80mm	f/3.5	255g
Sigma28-80mm F/3.5-5.6 ASPH Macro II	PENTAX K+ CANON EF, MINOLTA/SONY A	Macro	2001	28-80mm	f/3.5	245g
Sigma28-80mm F/3.5-5.6 II ASPH MINI ZOOM Macro	PENTAX K+ CANON EF, CANON EF-S, MINOLTA/SONY A, NIKON F, NIKON F DX	Macro	—	28-80mm	f/3.5	—
Sigma28-90mm F/3.5-5.6 ASPH	PENTAX K+ CANON EF, MINOLTA/SONY A	Zoom	—	28-90mm	f/3.5	260g
Sigma28-90mm F/3.5-5.6 ASPH Macro	PENTAX K+ CANON EF, MINOLTA/SONY A	Macro	—	28-90mm	f/3.5	255g
Sigma28mm F/1.8	PENTAX K+ CANON FD, CONTAX/YASHICA, KONICA AR, M42, MINOLTA MD, MINOLTA SR, NIKON F, NIKON F DX, OLYMPUS OM	Wide	—	28mm	f/1.8	—
Sigma28mm F/1.8 EX DG ASP Macro	PENTAX K+ CANON EF, CANON EF-S, MINOLTA/SONY A, NIKON F, NIKON F DX	Macro	—	28mm	f/1.8	—