Sony Vario-Sonnar T* 16-35mm F2.8 ZA SSM

Sony

Vario-Sonnar T* 16-35mm F2.8 ZA SSM

Released January 2009

A full-frame A-mount ultra-wide F2.8 zoom with SSM autofocus and Zeiss T* coating.

Mount
Sony A
Focal length
16–35 mm
Max aperture
f/2.8
Stabilisation
–
Weight
860 g

What reviewers say

Both praise construction and usable F2.8 detail but note wide-angle distortion. ZOL’s Alpha900 test finds wide-open resolution close to its best and autofocus hesitant; OpticalLimits’ Alpha850 finds fast, accurate focus but weaker wide-open edges at longer focal lengths, especially 35mm. OpticalLimits also finds substantial full-frame corner shading at the wide end.

From photozone.de, photozone.de and dcdv.zol.com.cn

Optics

Lens type
Zoom
Focal length
16–35 mm
Maximum aperture
f/2.8
Minimum aperture
f/22
Optical construction
Seventeen elements in thirteen groups
Special elements
Three aspherical elements, one Super ED element and one ED element
Coatings
Zeiss T* coating
Diaphragm
Nine rounded blades
Angle of view
107°–63° full-frame; 83°–44° APS-C

Mount and compatibility

Mounts
Sony A
Image circle
Full frame
Image circle detail
Full-frame A-mount coverage; 24–52.5 mm equivalent field of view on APS-C
Teleconverter support
Sony 1.4× and 2× teleconverters unsupported

Focus and stabilisation

Autofocus
Yes
Minimum focus distance
0.28 m
Maximum magnification
0.24×
Autofocus detail
In-lens SSM ultrasonic autofocus motor
Focus distance detail
Internal focusing; 0.28 m minimum focus. Direct Manual Focus available in single-shot AF (OpticalLimits)

Design

Filter diameter
77 mm
Maximum diameter
83 mm
Length
114 mm
Weight
860 g
Controls
AF/MF focus-mode switch and focus-hold button
Zoom design
Outer length remains constant, with internal lens-tube movement during zooming (OpticalLimits)
Filter detail
77 mm filter thread
Dimensions detail
83 mm maximum diameter × 114 mm length
Weight detail
Approximately 860 g, maker lens weight
Lens hood
Petal-shaped bayonet hood supplied
In the box
Lens hood and case
Release detail
Sony’s 10 September 2008 announcement states January 2009 sale in Japan; no exact day is specified.

Pros and cons

Pros

  • Constant F2.8 maximum aperture
  • 16 mm ultra-wide coverage
  • Focus-hold button

Cons

  • 860 g weight
  • 77 mm filters

Closest rivals

Model
MountFocal lengthMax apertureStabilisationWeightReleased
Sony A24–70 mmf/2.8–955 gFeb 2008
Sony A16–50 mmf/2.8No577 gOct 2011
Sony A16–80 mmf/3.5–4.5–445 gMar 2007

Sources

  1. sony.jp/ichigan/products/archive/SAL1635Z/spec.html
  2. sony.jp/ichigan/products/archive/SAL1635Z/feature_1.html
  3. sony.jp/CorporateCruise/Press/200809/08-0910B
  4. photozone.de/sonyalphaff/495-zeiss_1635_28ff
  5. photozone.de/sonyalphaff/495-zeiss_1635_28ff
  6. dcdv.zol.com.cn/125/1254346_all.html

Photo: sony.jp

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