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History
Sony Alpha 20/2.8
KonicaMinolta AF DT 18-70/3.5-5.6 vs. Minolta AF 17-35/3.5 G
Konica Minolta AF DT 18-70/3.5-5.6 (D)
Minolta AF 35-105/3.5-4.5
Minolta AF 600/4 APO
Minolta AF 100/2.8 Macro
Minolta AF 135/2.8

Lens tech data for Sony Alpha 20/2.8

	General

	Name	Sony Alpha 20/2.8
	Mount type	A-mount
	Release year	2006
	Status	current
	Manufacturer's order code	SAL20F28
	Aperture
	Minimum aperture	22
	Aperture blades	7, circular
	Optical construction
	Elements/groups	10/9
	Minimum focus distance?	25 cm
	Maximum magnification	1:7.69 (0.13×)
	Focus design?	rear, floating
	Features
	AF drive	in-body motor
	D function	no
	Lens buttons	–
	Focus range limiter	–
	Tripod mount	–
	Other features	distance scale
	Dimensions and weight
	Minimum length [mm]?	53.5
	Maximum length [mm]?	53.5
	Maximum diameter [mm]?	78.0
	Filter diameter [mm]/type	72/front
	Weight [g] nominal/net/gross?	285/unknown/unknown
	Hood
	Hood mount	bayonet
	Hood shape	flower
	Hood part number	ALC-SH0013
	Movements
	Filter rotates when focusing	no
	Length changes when focusing	no
	Focus ring rotates in AF mode	yes
	Construction and accessories
	Color	black
	Weather sealing	no
	Mount material	steel
	Standard accessories	front cap, rear cap, hood
	Optional accessories	pouch LCL-90AM
	Misc
	Lens ID	26411
	Comments	same design as older version
	Reviews	Kurt Munger
	Related lenses	Minolta AF 20/2.8 new Minolta AF 20/2.8