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400 Sony FE 400mm F4.5 GM OSS

The Sony FE 400mm F4.5 GM OSS is a prime lens for Sony E-mount (Full frame) that covers 400 mm at f/4.5, weighs 994 g and focuses as close as 2.5 m.

  • f/4.5widest aperture
  • 994 gweight
  • 51bodies it fits
To one scale. Sony FE 400mm F4.5 GM OSS: length 242 mm, diameter 108 mm, filter thread 95 mm.242 mmø108
To scale from the maker's length and diameter, the mount on the left and the filter thread in yellow at the front. The rings are drawn, not measured.

Compare it with another lensAll Sony E-mount lenses

To one scale. Sony FE 400mm F4.5 GM OSS: length 242 mm, diameter 108 mm, filter thread 95 mm.242 mmø108
To scale from the maker's length and diameter, the mount on the left and the filter thread in yellow at the front. The rings are drawn, not measured.

Bodies it fits

51 bodies

All cameras, by maker and mount

Specifications

Focal length
400 mm
Widest aperture
f/4.5
Closest focus
2.5 m1
Maximum magnification
0.18x1
Stabilization
Yes1
Mount
Sony E-mount1
Covers
Full frame
Type
Prime
Weight
994 g1
Length
242 mm1
Diameter
108 mm1
Filter thread
95 mm1
Elements
221
Groups
161
Aperture blades
111
Hood
ALC-SH1891
Tripod ring
Yes1
Extenders
SEL14TC, SEL20TC1

Sources

  1. Sony Japan lens specifications (sony.jp), checked Oct 6, 2026

Worked out by code, not stated by a source

  • Focal length and widest aperture as the lens's own name states them.
  • Read from the lens name: each maker marks the sensor size a lens covers (Sony FE/E, Canon RF/RF-S, Nikon DX, Tamron Di III/Di III-A, Sigma DG/DC); every Fujifilm X lens is APS-C and every Micro Four Thirds lens is Four Thirds.
  • Prime or zoom, read from the focal length in the lens name.

Each value is checked automatically against the source it links, on the date shown. How we build these pages

† The makers' own tables, row by row, with labels in our plain words (translated where the maker's page isn't in English); each row's numbers are checked against the page it links.

Full specifications†

Show all 27 rows
Full specificationsSony FE 400mm F4.5 GM OSS1
Product nameFE 400mm F4.5 GM OSS
Model numberSEL400F45GM
Lens mountSony E-mount
Compatible sensor size35mm full size
Focal length400 mm
Focal length image600 mm
Lens construction16-22
Angle of view4°10' (APS-C)
Angle of view6°10' (35mm format)
Maximum aperture4.5
Minimum aperture32
Diaphragm blades11
Circular diaphragmyes
Minimum focusing distance2.5 m
Maximum magnification ratio0.18
Filter size95 mm
Image stabilizationIn-lens optical stabilization
Teleconverter 1.4xSEL14TC
Teleconverter 2.0xSEL20TC
Hood typeRound bayonet type
Dimensions108 x 242 mm
Weight994 g
Included hoodALC-SH189
Included front capALC-F95S
Included rear capALC-R1EM
Included caseSoft case
Included accessoriesLens strap, case strap, tripod foot