Sony FE 400mm F2.8 GM OSS vs F4.5 GM OSS
Both are Sony E lenses for full frame. Here is what actually differs.
Pick the F2.8 GM OSS if
- You need 1⅓ stops more light for low light or background blur (f/2.8 vs f/4.5)
- Our notes say it suits: Sports and wildlife professionals, low-light telephoto, field coverage
Pick the F4.5 GM OSS if
- You want the lighter lens to carry: 1901 g lighter (994 g vs 2895 g)
- You want bigger close-ups: 0.18× vs 0.16× maximum magnification
- You want a compact lens: 242 mm vs 359 mm long
- You prefer a newer design: released 2026 vs 2018
Spec differences
9 differences| F2.8 GM OSS | F4.5 GM OSS | |
|---|---|---|
| Type |
Prime
|
Telephoto
|
| Max aperture |
f/2.8
1⅓ stops faster
|
f/4.5
|
| Weight |
2895 g
|
994 g
lighter
|
| Length |
359 mm
|
242 mm
shorter
|
| Diameter |
158.1 mm
|
108 mm
slimmer
|
| Filter thread |
40 mm
|
95 mm
|
| Min focus distance |
2.7 m
|
2.5 m
closer
|
| Max magnification |
0.16×
|
0.18×
larger
|
| Released |
2018
|
2026
|
5 identical specs hidden: brand, mount, format, focal length, image stabilization. Show all
- Brand
- Sony both
- Mount
- Sony E both
- Format
- Full frame both
- Focal length
- 400mm both
- Image stabilization
- Yes both
Our notes
Sony FE 400mm F2.8 GM OSS
A 400mm f/2.8 G Master super-telephoto for full-frame E-mount, weighing about 2,895 g. It has Optical SteadyShot and supports Sony's teleconverters.
Pros
- f/2.8 at 400mm
- Optical SteadyShot
- Teleconverter support
- Lighter than older 400mm f/2.8 lenses
Cons
- Heavy at about 2,895 g
- Large for travel
- Minimum focus 2.7 m
Our notes