Olympus E-620 Low light lenses made by Sigma that have a f/2.8 or faster aperture

"This is a great portrait lense. Well built, quick and sharp focus."

	Aperture	f/1.4			Max focal length	50 mm
	Focus motor	Sigma HSM			Diameter	85 mm
	Min focal length	50 mm			Weight	0.5 kg
	Length	74 mm			Auto focus	Yes

"f/1.4 very handy in low light, indoor handheld portraits. Day to day use, especially after dusk. At f/1.4 the bokeh is so great some photos seem out of focus"

	Aperture	f/1.4			Max focal length	30 mm
	Focus motor	Sigma HSM			Diameter	76 mm
	Min focal length	30 mm			Weight	430 g
	Length	59 mm			Auto focus	Yes

"I take most of the pictures with a tripod. So, for certain not so fast picture taking, this lens serves me well. To me, lens with natural looking colors and excellent sharpness are the two most important factors I look in a lens."

	Aperture	f/1.8			Max focal length	24 mm
	Focus motor	None			Diameter	84 mm
	Min focal length	24 mm			Weight	485 g
	Length	82 mm			Auto focus	Yes