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Super Steady Shot with Full Frame Sensors

History
Sony Alpha DT 30/2.8 Macro SAM
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Technical information
Super Steady Shot with Full Frame Sensors
Minolta/Konica Minolta/Sony Alpha camera bodies
Minolta AF 200/4 Macro APO G

Lens tech data for Sony Alpha DT 30/2.8 Macro SAM

	General

	Name	Sony Alpha DT 30/2.8 Macro SAM
	Mount type	A-mount
	Release year	2009
	Status	current
	Manufacturer's order code	SAL30M28
	Aperture
	Minimum aperture	22
	Aperture blades	7, circular
	Optical construction
	Elements/groups	6/5
	Minimum focus distance?	13 cm
	Maximum magnification	1:1 (1×)
	Focus design?	extension
	Features
	AF drive	SAM (micro)
	D function	yes
	Lens buttons	–
	Focus range limiter	–
	Tripod mount	–
	Other features	AF/MF switch, distance scale
	Dimensions and weight
	Minimum length [mm]?	45.0
	Maximum length [mm]?	unknown
	Maximum diameter [mm]?	70.0
	Filter diameter [mm]/type	49/front
	Weight [g] nominal/net/gross?	150/unknown/unknown
	Hood
	Hood mount	–
	Hood shape	–
	Hood part number	–
	Movements
	Filter rotates when focusing	no
	Length changes when focusing	yes
	Focus ring rotates in AF mode	yes
	Construction and accessories
	Color	black
	Weather sealing	no
	Mount material	polycarbonate
	Standard accessories	front cap, rear cap
	Optional accessories	–
	Misc
	Lens ID	58
	Comments	–
	Reviews	ePHOTOzine
	Related lenses	–

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There are 1 comment(s):

#1: Comment posted by Vincent on April 30, 2010 - 08:45:22 AM:
I own this lens, and the filter threads do not rotate on focusing. Another interesting feature is that the rear element doesn't move. it creates a seal to prevent dust from contaminating the internals of the lens through the rear.
Michael Hohner answers:
Thanks, it's updated.