Four Thirds Zoom Lenses

"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

	Fixed aperture	No			Max focal length	42 mm
	Weight	190 g			Diameter	66 mm
	Zoom range	3x			Aperture	f/3.5
	Length	61 mm			Min focal length	14 mm

"Great clear shots, good focus and great zoom range. Produces really good sharp images" bhphotovideo.com

	Fixed aperture	No			Max focal length	150 mm
	Weight	220 g			Diameter	66 mm
	Zoom range	3.8x			Aperture	f/4
	Length	72 mm			Min focal length	40 mm

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

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

" Great lens, no bubble effect at edges, and very nice for the price." bhphotovideo.com

	Fixed aperture	No			Max focal length	18 mm
	Weight	275 g			Diameter	79 mm
	Zoom range	2x			Aperture	f/4
	Length	74 mm			Min focal length	9 mm

"I am delighted with this 140-600mm lense as it enables me to get close shots of birds and wildlife and has great clarity and sharpness for a moderately priced lense." bhphotovideo.com

Great telephoto lens 300 mm

	Fixed aperture	No			Max focal length	300 mm
	Weight	0.6 kg			Diameter	80 mm
	Zoom range	4.3x			Aperture	f/4
	Length	127 mm			Min focal length	70 mm

"Super sharp, wicked quality. Incredible for landscape photography!" bhphotovideo.com

Fixed aperture The same maximum aperture at all focal lengths

	Fixed aperture	Yes			Max focal length	14 mm
	Weight	0.8 kg			Diameter	86 mm
	Zoom range	2x			Aperture	f/4
	Length	119 mm			Min focal length	7 mm

"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

	Fixed aperture	No			Max focal length	180 mm
	Weight	435 g			Diameter	78 mm
	Zoom range	10x			Aperture	f/3.5
	Length	85 mm			Min focal length	18 mm

"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

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

"Love the clarity, love the 2.8. The wide angle gives me the ability to shoot a larger area closer and make the shots more interesting. For shooting groups of people it is wonderful." bhphotovideo.com

	Fixed aperture	No			Max focal length	22 mm
	Weight	485 g			Diameter	75 mm
	Zoom range	2x			Aperture	f/2.8
	Length	93 mm			Min focal length	11 mm

"It provides outstanding sharp photos at long distances; with the f2.8 stopping action (surfers; shore objects from a ship a mile or two off shore). I have used it at sporting events and have even used it for some astronomy work (great for the moon)." bhphotovideo.com

Fixed aperture The same maximum aperture at all focal lengths

Great telephoto lens 250 mm

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