Sony FE 400mm F4.5 GM OSS
Quick answer
The Sony FE 400mm F4.5 GM OSS is a super telephoto telephoto lens covering 400mm at f/4.5 for the Sony E mount. Its smaller maximum aperture favours daylight shooting and keeps the lens compact.
- Full frame
- APS-C (600mm equiv.)
- 52 Sony E cameras
- Focal
- 400mm
- Aperture
- f/4.5
- Weight
- 994g
- Filter
- 95mm
- Min focus
- 2.5m
What 400mm sees
- Full frame crop 1.0×
- 6.2° 5.2° horizontal
- APS-C crop 1.5× → 600mm
- 4.1° 3.4° horizontal
Diagonal angle of view. Frames drawn to scale at 400mm. Calculated from the focal length and crop factor, not measured.
Open the field-of-view calculatorSony FE 400mm F4.5 GM OSS specifications
Optics
- Focal length
- 400mm
- Maximum aperture
- f/4.5
- Format coverage
- Full frame
- Image stabilization
- Yes
Focus
- Minimum focus distance
- 2.5 m
- Maximum magnification
- 0.18×
Physical
- Filter thread
- 95 mm
- Weight
- 994 g
- Length
- 242 mm
- Diameter
- 108 mm
Specification source: en.wikipedia.org
What can you shoot with the Sony FE 400mm F4.5 GM OSS?
At 400mm this is a super telephoto telephoto, which typically suits:
- Wildlife and birds
- Motorsport and field sports
- Distant subjects and the moon
Its smaller maximum aperture favours daylight shooting and keeps the lens compact.
Frequently asked questions
What mount does the Sony FE 400mm F4.5 GM OSS use?
It uses the Sony E mount, so it fits Sony E cameras directly.
What is the focal length of the Sony FE 400mm F4.5 GM OSS?
It is a fixed 400mm lens with a maximum aperture of f/4.5. That makes it a super telephoto lens.
Is the Sony FE 400mm F4.5 GM OSS a prime or a zoom lens?
It is a prime lens with a fixed 400mm focal length. Primes usually open wider than zooms; this one opens to f/4.5.
What is the Sony FE 400mm F4.5 GM OSS equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 600mm on full frame, with a 3.4° horizontal and 4.1° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Sony FE 400mm F4.5 GM OSS fit?
Any Sony E-mount camera, including Sony A1, Sony A3000, Sony A5000, Sony A5100, and Sony A6000 and 47 more.
Alternatives for Sony E from other brands
All Sony E lensesSame mount, overlapping focal range, closest maximum aperture first.

