FE 100-400mm F4.5 GM OSS vs C 100-400 mm f/5-6.3 DG DN OS
Sony
FE 100-400mm F4.5 GM OSS
Sigma
C 100-400 mm f/5-6.3 DG DN OS
Here we are comparing the Sony FE 100-400mm F4.5 GM OSS and the Sigma C 100-400 mm f/5-6.3 DG DN OS. The Sony FE 100-400mm F4.5 GM OSS is a 100–400mm zoom lens with a maximum aperture of f/4.5, released in 2026. The Sigma C 100-400 mm f/5-6.3 DG DN OS is a 100–400mm telephoto zoom lens with a maximum aperture of f/5, released in 2020.
There is a 6 years difference between the Sigma C 100-400 mm f/5-6.3 DG DN OS and the Sony FE 100-400mm F4.5 GM OSS — the newer design may benefit from more recent optical engineering and coatings.
Below you will find a detailed side-by-side comparison of their specifications, features, and key differences.
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| Compare | Fastest Aperture Image Stabilization | |
|---|---|---|
| Mount | ||
| Sensor Size | Full Frame | Full Frame |
| Best For | Wildlife Video | Wildlife Video |
Price & Availability | ||
| Shop | ||
Optical Specifications | ||
| Focal Length | 100-400 mm | 100-400 mm |
| Aperture | f/4.5 | f/5 |
| Aperture Blades | 11 | 9 |
Features | ||
| Autofocus | Yes | Yes |
| Image Stabilization | Yes | Yes |
| Weather Sealed | Yes | No |
Close-up Performance | ||
| Min. Focus Distance | 0.64 m | 1.12 m |
| Max. Magnification | 0.25x | - |
Physical Specifications | ||
| Weight | 1840 g | 1135 g |
| Length | 328 mm | 197.2 mm |
| Diameter | 119.8 mm | 86 mm |
| Filter Thread | 95 mm | 67 mm |
Price & Availability | ||
| Release Year | 2026 | 2020 |
| Shop | ||
Shopping links may contain affiliate codes that support this site at no extra cost to you.
Comparing Sony FE 100-400mm F4.5 GM OSS (100-400 mm, f/4.5) and Sigma C 100-400 mm f/5-6.3 DG DN OS (100-400 mm, f/5).
Sigma C 100-400 mm f/5-6.3 DG DN OS is the lightest at 1135 g, Sony FE 100-400mm F4.5 GM OSS weighs 1840 g.
Sony FE 100-400mm F4.5 GM OSS offers the fastest maximum aperture at f/4.5, allowing for better low-light performance and shallower depth of field.
Sony FE 100-400mm F4.5 GM OSS can focus closest at 0.64 m minimum focus distance.
Both lenses feature image stabilization for handheld shooting. Sony FE 100-400mm F4.5 GM OSS is weather-sealed for challenging conditions.
Use the detailed comparison table below to see all specifications side-by-side and find the perfect lens for your photography needs.
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