Sigma EX 105/2.8 DG OS HSM Macro (Sony) vs Sony FE 100-400mm f/4.5-5.6 GM OSS
Sigma EX 105/2.8 DG OS HSM Macro (Sony) vs Sony FE 100-400mm f/4.5-5.6 GM OSS
When comparing Sony FE 100-400mm f/4.5-5.6 GM OSS and Sigma EX 105/2.8 DG OS HSM Macro (Sony), which one is better?
1. Lens Mount Comparison
These two lenses use the same lens mount, the Sony E. This means that both lenses are compatible with cameras that use this mount.
Winner: Tied
Regarding lens mount: Popular lens mounts are Canon RF and EF, Micro Four Thirds and Nikon Z. Different lens mounts lets you connect different lenses to camera bodies, but some might not be compatible. This can be helped by using an adapter, like a Canon EF to RF adapter.
2. Largest Aperture Comparison
The Sigma EX 105/2.8 DG OS HSM Macro - (Sony) has the largest aperture of the two lenses at 2.8 compared to the 4.5 - 5.6 aperture of Sony FE 100-400mm f/4.5-5.6 GM OSS. This means that you get more light to your sensor using Sigma EX 105/2.8 DG OS HSM Macro - (Sony) wide open, and therefore it might be a better lens in dark situations.
Winner: Sigma EX 105/2.8 DG OS HSM Macro (Sony)
Regarding largest aperture: A lower aperture number means that the widest aperture on the lens is larger. This means that more light will hit the sensor and also that the depth of field will be shallower, better separating your subject from the background.
Specifications
Full specifications table of Sigma EX 105/2.8 DG OS HSM Macro (Sony) and Sony FE 100-400mm f/4.5-5.6 GM OSS:
| Sigma EX 105/2.8 DG OS HSM Macro - (Sony) | Sony FE 100-400mm f/4.5-5.6 GM OSS | |
 |  | |
| Brand | Sigma | Sony |
| Weight | Missing | 1395 g |
| Lens Mount | Sony E | Sony E |
| Focal Length | 105 mm | 100 - 400 mm |
| Largest Aperture | 2.8 | 4.5 - 5.6 |
| Anamorphic | Missing | No |
| Minimum Focus Distance | Missing | 98 cm |
| Type | Missing | Zoom |
| Filter Thread Diameter | Missing | 77 |
| Aperture Blades | Missing | 9 |
| Lens Groups | Missing | 16 |
| Lens Elements | Missing | 22 |
| Image Stabilization | Missing | Yes |
| Autofocus | Missing | Evet |
| Macro | Missing | No |
| Weather Seal | Missing | Yes |
| Full Frame Coverage | Missing | Yes |
| Lens Hood Included | Missing | Yes |
| Stabilization Type | Missing | Sony Optical SteadyShot (OSS) |