Samsung GX-20 Lenses made by Zeiss that have a f/2.8 or faster aperture

"The fingers tactile involvment of the smooth action of the focusing ring and the eyes involvment with the superb sharpness of the Makro-Planars optics on the focusing screen is an experience unique in photography these days with mass produced auto focus lenses the norm. "

	Aperture	f/2			Weight	0.7 kg
	Min focal length	100 mm			Diameter	76 mm
	Max focal length	100 mm			Auto focus	No
	Length	89 mm			Zoom range	1x

"Definitely one of my favorite lenses along with the limiteds. I joy to use on the K20D."

	Aperture	f/2.8			Weight	480 g
	Min focal length	25 mm			Diameter	65 mm
	Max focal length	25 mm			Auto focus	No
	Length	66 mm			Zoom range	1x

"It will be a 75mm in APS-C format, and great for portrait. The color rendition is much richer than my 43mm limited."

	Aperture	f/1.4			Weight	n/a
	Min focal length	50 mm			Diameter	n/a
	Max focal length	50 mm			Auto focus	No
	Length	n/a			Zoom range	1x