Samsung GX-20 Zoom Lenses that have a f/2.8 or faster aperture

"The build quality seems top notch, no play in the focus or zoom rings at all, and very smooth action of both."

	Aperture	f/2.8			Length	136 mm
	Focus motor	Pentax SDM			Max focal length	135 mm
	Fixed aperture	Yes			Weight	0.7 kg
	Image stabilization	None			Min focal length	50 mm

"I purchased this product to shoot soccer photos and as a replacement for a 70-300mm f4.5-5.6 lens in order to shoot "under the lights". I have not been dissappointed."

	Aperture	f/2.8			Length	184 mm
	Focus motor	Sigma HSM			Max focal length	200 mm
	Fixed aperture	Yes			Weight	1.4 kg
	Image stabilization	None			Min focal length	70 mm

"I have had this lens for a few months now and it has become my favorite and most used lens. It has very quiet focusing and beautiful color production."

	Aperture	f/2.8			Length	135 mm
	Focus motor	Sigma HSM			Max focal length	150 mm
	Fixed aperture	Yes			Weight	0.8 kg
	Image stabilization	None			Min focal length	50 mm

"The is a great upgrade from a kit lens. Good focal length range, speed and macro ability."

More advanced image stabilization Sigma OS

	Aperture	f/2.8			Length	83 mm
	Focus motor	Sigma HSM			Max focal length	70 mm
	Fixed aperture	No			Weight	0.5 kg
	Image stabilization	Sigma OS			Min focal length	17 mm

"This is a solid lens. I'm not 100% convinced the OS in this lens is an improvement over the body image stabilization, but it seems to be roughly equivalent."

More advanced image stabilization Sigma OS

	Aperture	f/2.8			Length	n/a
	Focus motor	Sigma HSM			Max focal length	50 mm
	Fixed aperture	No			Weight	395 g
	Image stabilization	Sigma OS			Min focal length	18 mm

"Great lens for everyday use... Fast and sharp.... The price was nice also"

	Aperture	f/2.8			Length	99 mm
	Focus motor	Pentax SDM			Max focal length	50 mm
	Fixed aperture	Yes			Weight	0.6 kg
	Image stabilization	None			Min focal length	16 mm

"I am very pleased with this lens. I have it attached to my Pentax K20D, and don't see it coming off anytime soon. This lens produces consistently sharp pictures throughout the range (slightly soft wide open, but not enough to really mention). The lens also produces nice vibrant color with a nice level of contrast."

	Aperture	f/2.8			Length	115 mm
	Focus motor	None			Max focal length	70 mm
	Fixed aperture	Yes			Weight	0.7 kg
	Image stabilization	None			Min focal length	24 mm

"It's razor sharp, even wide open. If that's all that matters to you in a lens, stop, do not pass Go! and buy this lens. Bokeh is pleasing for its price range as well."

	Aperture	f/2.8			Length	82 mm
	Focus motor	None			Max focal length	50 mm
	Fixed aperture	Yes			Weight	434 g
	Image stabilization	None			Min focal length	17 mm

"The colors are perfect, the sharpen is stupendous, the phenomenal focus and the "DOF" is very very beautiful."

	Aperture	f/2.8			Length	194 mm
	Focus motor	None			Max focal length	200 mm
	Fixed aperture	Yes			Weight	1.1 kg
	Image stabilization	None			Min focal length	70 mm