Sony FE 100–400mm F5.6–8 OSS

Sony

FE 100–400mm F5.6–8 OSS

Released August 2026

A full-frame E-mount telephoto zoom with optical stabilisation, two linear autofocus motors and 0.41× close-up magnification.

Mount
Sony E
Focal length
100–400 mm
Max aperture
f/5.6–8
Stabilisation
Yes
Weight
654 g

What reviewers say

Both find good value, useful close-ups and comfortable handling, but the narrow aperture limits low-light shooting and autofocus. PetaPixel finds the build plasticky; The Digital Picture likes its tight construction. PetaPixel sees acceptable optical quality with weaker corners, while The Digital Picture highlights colour fringing and dislikes the variable-speed manual-focus response.

From petapixel.com and the-digital-picture.com

Optics

Lens type
Zoom
Focal length
100–400 mm
Maximum aperture
f/5.6–8
Minimum aperture
f/32–45
Optical construction
15 elements in 10 groups
Special elements
Two ED glass and two aspherical elements
Diaphragm
Nine rounded blades
Angle of view
24°–6°10′ full frame; 16°–4°10′ APS-C

Mount and compatibility

Mounts
Sony E
Image circle
Full frame
Image circle detail
Full-frame coverage; 150–600 mm equivalent field of view on APS-C
Teleconverter support
Compatible with SEL14TC and SEL20TC; 2× extends physical focal range to 200–800 mm with a two-stop aperture reduction

Focus and stabilisation

Autofocus
Yes
Minimum focus distance
0.86 m
Maximum magnification
0.41×
Optical stabilisation
Yes
Autofocus detail
Two linear motors; compatible with up to 120 fps AF/AE tracking on Alpha 9 III under Sony test conditions, with speed dependent on shooting conditions and compatibility
Focus distance detail
Minimum focus 1.13 m at 100 mm or 0.86 m at 400 mm
Stabilisation detail
Optical SteadyShot; coordinated body stabilisation and Active Mode require a compatible camera; Sony publishes no stop rating
Video features
Breathing compensation supported with compatible cameras; enabling it changes the field of view and image quality slightly and may not fully correct breathing

Design

Dust and moisture resistant
Yes
Filter diameter
67 mm
Maximum diameter
78.2 mm
Length
164.5 mm
Weight
654 g
Controls
Customisable focus-hold button, combined AF FULL / AF infinity–3 m / MF switch, OSS on/off switch and zoom lock
Zoom design
Barrel extends towards 400 mm; zoom lock prevents unintended extension when pointed downwards
Weather resistance
Dust- and moisture-resistant design; not guaranteed completely dust- or moisture-proof
Weight detail
Approximately 654 g lens; separate hood and caps excluded
Lens hood
ALC-SH188 round bayonet hood
In the box
ALC-SH188 hood, ALC-F67S front cap and ALC-R1EM rear cap
Release detail
Sony UK announced on 4 August 2026 and specified availability from the end of August 2026 at approximately £800. The separate Japanese launch date was 4 September 2026; month precision records the earlier UK on-sale window, with no exact UK day published

Pros and cons

Pros

  • 654 g lens weight
  • Optical stabilisation
  • Compatible with 1.4× and 2× teleconverters

Cons

  • F8 maximum aperture at the telephoto end
  • No aperture ring

Closest rivals

Model
MountFocal lengthMax apertureStabilisationWeightReleased
Sony E100–400 mmf/4.5Yes1,840 gJun 2026
Sony E100–400 mmf/4.5–5.6Yes1,395 gJul 2017
Sony E70–300 mmf/4.5–5.6Yes854 gApr 2016

Sources

  1. sony.jp/ichigan/products/SEL100400/spec.html
  2. sony.co.uk/electronics/e-mount-lenses/sel100400
  3. sony.co.uk/presscentre/sony-launches-fe-100-400mm-f56-8-oss-the-perfect-super-t…
  4. sony.jp/CorporateCruise/Press/202608/26-0804
  5. sony.jp/ichigan/products/SEL100400/feature_1.html
  6. petapixel.com/2026/08/04/sony-100-400mm-f-5-6-8-review-its-just-fine-and-thats-…
  7. the-digital-picture.com/Reviews/Sony-FE-100-400mm-F5-6-8-OSS-Lens.aspx

Photo: sony.jp

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