Lens tech data for Sony Alpha 70-400/4-5.6 G SSM

General
Name	Sony Alpha 70-400/4-5.6 G SSM
Mount type	A-mount
Release year	2008
Status	discontinued
Manufacturer's order code	SAL-70400G
Aperture
Minimum aperture	22–32
Aperture blades	9, circular
Optical construction
Elements/groups	18/12
Minimum focus distance	150 cm
Maximum magnification	1:3.7 (0.27×)
Focus design	internal
Features
AF drive	SSM (ring)
D function	yes
Lens buttons	3
Focus range limiter	electronic, dual range
Tripod mount	removable
Other features	distance scale
Dimensions and weight
Minimum length [mm]	196.0
Maximum length [mm]	282.0
Maximum diameter [mm]	94.5
Filter diameter [mm]/type	77/front
Weight [g] nominal/net/gross	1490/1484/1732
Hood
Hood mount	bayonet
Hood shape	flower
Hood part number	ALC-SH107
Movements
Filter rotates when focusing	no
Filter rotates when zooming	no
Length changes when focusing	no
Length changes when zooming	yes
Focus ring rotates in AF mode	no
Construction and accessories
Color	silver
Weather sealing	no
Zoom ring position	front
Mount material	steel
Standard accessories	front cap, rear cap, hood, pouch
Optional accessories	–
Misc
Lens ID	53
Comments	–
Reviews & links	Ivo Freriks on CameraStuffReview (full review), Klaus Schroiff on photozone.de (full review), Kurt Munger (full review)
Related lenses	Sony Alpha 1.4× Teleconverter (no AF) Minolta AF 1.4× APO (D) (no AF) Minolta AF 1.4× APO Ⅱ (no AF) Minolta AF 1.4× APO (no AF) Sony Alpha 2× Teleconverter (no AF) Minolta AF 2× APO (D) (no AF) Minolta AF 2× APO Ⅱ (no AF) Minolta AF 2× APO (no AF) Sony Alpha 70-400/4-5.6 G SSM Ⅱ
Part of camera kit	–

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Readers' comments

#1: Comment posted by toughluck on September 8th, 2008 - 11:41:01 AM:

Won't the lens be white? According to the leaked manual at http://pdf.crse.com/manuals/4113649011.pdf
the tripod collar indices are black, so we should expect the lens to be white. This mock-up might be a different lens altogether.

Furthermore, the 196 mm is the maximum length of the lens, not minimum, and with the proportions, the lens definitely extends when zooming (not that it wasn't expected, too), but not when it's focusing (also expected -- the focusing ring is in the rear of the lens, so the focusing helicoids must be there as well, so there is no possibility to extend this lens when focusing).

Weather sealing -- likely none. The manual doesn't mention this at all

Michael Hohner answers:
We'll see the color of the lens when it's released. When the lens extends, then 196 mm is indeed the minimum length. That's what's always specified in lens manuals. The maximum length will be longer when the lens extends, and that value is typically not specified.