Name Manufacturer / Model	Mount Bayonet	Type Category	Year Released	Focal mm	Aperture f/	Weight g
Sigma28-70mm F/2.8-4 UC	CONTAX/YASHICA	Zoom	—	28-70mm	f/2.8	—
Sigma28-70mm F/2.8-4 UC ZEN	PENTAX K	Zoom	—	28-70mm	f/2.8	—
Sigma28-70mm F/2.8-4 UC ZEN	SIGMA SA	Zoom	—	28-70mm	f/2.8	—
Sigma28-70mm F/2.8-4 UC ZEN	MINOLTA/SONY A	Zoom	—	28-70mm	f/2.8	—
Sigma28-70mm F/3.5-4.5	OLYMPUS OM	Zoom	—	28-70mm	f/3.5	—
Sigma28-70mm F/3.5-4.5	PENTAX K	Zoom	—	28-70mm	f/3.5	—
Sigma28-70mm F/3.5-4.5	YASHICA AF	Zoom	—	28-70mm	f/3.5	—
Sigma28-70mm F/3.5-4.5 IA ZEN	PENTAX K	Zoom	—	28-70mm	f/3.5	—
Sigma28-70mm F/3.5-4.5 UC ZEN	PENTAX K	Zoom	—	28-70mm	f/3.5	—
Sigma28-70mm F/3.5-4.5 UC ZEN	SIGMA SA	Zoom	—	28-70mm	f/3.5	—
Sigma28-70mm F/3.5-4.5 UC ZEN	YASHICA AF	Zoom	—	28-70mm	f/3.5	—
Sigma28-70mm F/3.5-4.5 UC ZEN	MINOLTA/SONY A	Zoom	—	28-70mm	f/3.5	—
Sigma28-80mm F/3.5-5.6 ASPH Macro	PENTAX K	Macro	—	28-80mm	f/3.5	—
Sigma28-80mm F/3.5-5.6 ASPH Macro	SIGMA SA	Macro	—	28-80mm	f/3.5	—
Sigma28-80mm F/3.5-5.6 ASPH Macro	MINOLTA/SONY A	Macro	—	28-80mm	f/3.5	—
Sigma28-80mm F/3.5-5.6 ASPH Macro HF	PENTAX K	Macro	—	28-80mm	f/3.5	—
Sigma28-80mm F/3.5-5.6 ASPH Macro HF	SIGMA SA	Macro	—	28-80mm	f/3.5	—
Sigma28-80mm F/3.5-5.6 ASPH Macro HF	MINOLTA/SONY A	Macro	—	28-80mm	f/3.5	—
Sigma28-80mm F/3.5-5.6 ASPH Macro II	PENTAX K	Macro	—	28-80mm	f/3.5	—
Sigma28-80mm F/3.5-5.6 ASPH Macro II	SIGMA SA	Macro	—	28-80mm	f/3.5	—
Sigma28-80mm F/3.5-5.6 ASPH Macro II	MINOLTA/SONY A	Macro	—	28-80mm	f/3.5	—
Sigma28-80mm F/3.5-5.6 II ASPH MINI ZOOM Macro	CANON EF	Macro	—	28-80mm	f/3.5	—
Sigma28-80mm F/3.5-5.6 II ASPH MINI ZOOM Macro	CANON EF-S	Macro	—	28-80mm	f/3.5	—
Sigma28-80mm F/3.5-5.6 II ASPH MINI ZOOM Macro	NIKON F	Macro	—	28-80mm	f/3.5	—
Sigma28-80mm F/3.5-5.6 II ASPH MINI ZOOM Macro	NIKON F DX	Macro	—	28-80mm	f/3.5	—
Sigma28-80mm F/3.5-5.6 II ASPH MINI ZOOM Macro	PENTAX K	Macro	—	28-80mm	f/3.5	—
Sigma28-80mm F/3.5-5.6 II ASPH MINI ZOOM Macro	MINOLTA/SONY A	Macro	—	28-80mm	f/3.5	—
Sigma28-90mm F/3.5-5.6 ASPH	PENTAX K	Zoom	—	28-90mm	f/3.5	—