Four Thirds Zoom Portrait lenses that have a f/2.8 or faster aperture

"Instant focusing when used with e3. Great color retention." bhphotovideo.com

	Aperture	f/2.8			Diameter	87 mm
	Fixed aperture	No			Max focal length	200 mm
	Weight	1 kg			Min focal length	50 mm
	Length	157 mm			Zoom range	4x

"The SWD focussing is quite exceptional (as is the macro capability). If you have only one ZD lens make it this one." bhphotovideo.com

Quite short 99 mm

	Aperture	f/2.8			Diameter	80 mm
	Fixed aperture	No			Max focal length	60 mm
	Weight	0.6 kg			Min focal length	12 mm
	Length	99 mm			Zoom range	5x

"Very sharp, fast and heavy. I use an SLR mostly to photograph flat art where I need a better tonal scale than smaller sensors." bhphotovideo.com

Quite short 88 mm

Very light 440 g

Small diameter 74 mm

	Aperture	f/2.8			Diameter	74 mm
	Fixed aperture	No			Max focal length	54 mm
	Weight	440 g			Min focal length	14 mm
	Length	88 mm			Zoom range	3.9x

"This lens is very useful in low light and with fast action events. The lens is very fast (bright) which allows for fast shutter speeds to capture the action" bhphotovideo.com

Fixed aperture The same maximum aperture at all focal lengths

	Aperture	f/2			Diameter	97 mm
	Fixed aperture	Yes			Max focal length	100 mm
	Weight	1.7 kg			Min focal length	35 mm
	Length	214 mm			Zoom range	2.9x

"It was perfect for several graduations. I generally use it with my E3 body, which makes the whole system very weather resistant." bhphotovideo.com

Fixed aperture The same maximum aperture at all focal lengths

Great telephoto lens 250 mm

	Aperture	f/2.8			Diameter	125 mm
	Fixed aperture	Yes			Max focal length	250 mm
	Weight	3.3 kg			Min focal length	90 mm
	Length	277 mm			Zoom range	2.8x