Sirui Venus 100mm T2.9 1.6x Sony E vs Sigma 200mm f/2 DG OS Sony E
Sirui Venus 100mm T2.9 1.6x Sony E vs Sigma 200mm f/2 DG OS Sony E
When comparing Sigma 200mm f/2 DG OS Sony E and Sirui Venus 100mm T2.9 1.6x Sony E, 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 200mm f/2 DG OS - Sony E has the largest aperture of the two lenses at 2 compared to the 2.9 aperture of Sirui Venus 100mm T2.9 1.6x - Sony E. This means that you get more light to your sensor using Sigma 200mm f/2 DG OS - Sony E wide open, and therefore it might be a better lens in dark situations.
Winner: Sigma 200mm f/2 DG OS Sony E
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.
3. Anamorphic Comparison
Winner: Sirui Venus 100mm T2.9 1.6x Sony E
Regarding anamorphic: Anamorphic lenses are usually used on cinema cameras and squeezes the image when its recorded, which gives the final, stretched out, image oval bokeh and a different angle of view. The most common lenses, however, are not anamorphic but spherical, which gives a spherical bokeh and is a much cheaper lens design.
4. Lens Type Comparison
Both lenses are Prime lenses, which means that you can choose both Sirui Venus 100mm T2.9 1.6x - Sony E or Sigma 200mm f/2 DG OS - Sony E if you're looking for that type of lens.
Winner: Tied
Regarding type: There are two types of lenses; zoom lenses and prime lenses. Prime lenses have a fixed focal length and cannot be zoomed, while zoom lenses have a focal length range and can be zoomed in to get closer to the subject. Prime lenses are usually lighter, cheaper and let in more light. Zoom lenses are more versatile but are more expensive since they require a more advanced lens design.
5. Stabilization Comparison
Sigma 200mm f/2 DG OS - Sony E features built-in image stabilization and Sirui Venus 100mm T2.9 1.6x - Sony E does not. Depending on your shooting style, this may be a heavy factor to choose Sigma 200mm f/2 DG OS - Sony E instead of Sirui Venus 100mm T2.9 1.6x - Sony E.
Winner: Sigma 200mm f/2 DG OS Sony E
Regarding image stabilization: When a lens features built-in stabilization, it will actively help you hold the image steady by adjusting the optical elements inside the lens to compensate for movements. Do remember that lens stabilization is not required, but it may be suitable depending on your specific needs.
Specifications
Full specifications table of Sirui Venus 100mm T2.9 1.6x Sony E and Sigma 200mm f/2 DG OS Sony E:
| Sirui Venus 100mm T2.9 1.6x - Sony E | Sigma 200mm f/2 DG OS - Sony E | |
 |  | |
| Brand | Sirui | Sigma |
| Weight | Missing | 1800 g |
| Lens Mount | Sony E | Sony E |
| Focal Length | 100 mm | 200 mm |
| Largest Aperture | 2.9 | 2 |
| Anamorphic | Yes | No |
| Anamorphic Squeeze Factor | 1.6 | Missing |
| Minimum Focus Distance | Missing | 170 cm |
| Type | Prime | Prime |
| Aperture Range | Missing | 2 - 22 |
| Filter Thread Diameter | Missing | 105 |
| Aperture Blades | Missing | 11 |
| Lens Groups | Missing | 14 |
| Lens Elements | Missing | 19 |
| Image Stabilization | No | Yes |
| Autofocus | Missing | Yes |
| Macro | Missing | No |
| Weather Seal | Missing | Yes |
| Full Frame Coverage | Missing | Yes |
| Lens Hood Included | Missing | Yes |
| Stabilization Type | Missing | Sigma Optical Stabilizer (OS) |