Four Thirds Zoom Lenses that have a generic focus motor

"Amazing performance from this lens." bhphotovideo.com

Great telephoto lens 300 mm

	Focus motor	Generic motor			Zoom range	4.3x
	Fixed aperture	No			Max focal length	300 mm
	Weight	0.6 kg			Diameter	80 mm
	Length	127 mm			Aperture	f/4

"I found the lens solid in feel, easy to change, quick enough focussing" bhphotovideo.com

	Focus motor	Generic motor			Zoom range	2x
	Fixed aperture	No			Max focal length	18 mm
	Weight	275 g			Diameter	79 mm
	Length	74 mm			Aperture	f/4

"I use this lens on a lot of landscape photography. I also shoot regularly from helicopters, both air to air shots of aircraft as well as landscapes." bhphotovideo.com

Fixed aperture The same maximum aperture at all focal lengths

	Focus motor	Generic motor			Zoom range	2x
	Fixed aperture	Yes			Max focal length	14 mm
	Weight	0.8 kg			Diameter	86 mm
	Length	119 mm			Aperture	f/4

"Light weight and easy to handle. Imagages are very sharp and bright." bhphotovideo.com

	Focus motor	Generic motor			Zoom range	3.8x
	Fixed aperture	No			Max focal length	150 mm
	Weight	220 g			Diameter	66 mm
	Length	72 mm			Aperture	f/4

"It's very light (not aluminum like the 70s) but the depth of field is surprisingly minimal for a lens of this size" bhphotovideo.com

	Focus motor	Generic motor			Zoom range	3x
	Fixed aperture	No			Max focal length	42 mm
	Weight	190 g			Diameter	66 mm
	Length	61 mm			Aperture	f/3.5

"This is the lens that will stay on my camera 90% of the time. Good all around lens." bhphotovideo.com

	Focus motor	Generic motor			Zoom range	2x
	Fixed aperture	No			Max focal length	22 mm
	Weight	485 g			Diameter	75 mm
	Length	93 mm			Aperture	f/2.8

"Without a shadow of doubt a much better, brighter, sharper lens than the usual kit lens. I use this lens for everything from underwater to panoramic and highly recommend it." bhphotovideo.com

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

"The lens is much better than the stock lens. It gives great depth of field when on the end of the lens and has a nice reach." bhphotovideo.com

Great zoom range 10x

	Focus motor	Generic motor			Zoom range	10x
	Fixed aperture	No			Max focal length	180 mm
	Weight	435 g			Diameter	78 mm
	Length	85 mm			Aperture	f/3.5

"Top notch lens without any real weakness, great for portraiture, landscapes, sports and more. Very Sharp, exceptional full-metal build." bhphotovideo.com

Fixed aperture The same maximum aperture at all focal lengths

Wide aperture f/2

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

"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

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