Sigma 24-70/2.8 DG DN Art (Sony E) vs Sirui 50mm T2.9 1.6X Full Frame (Sony E Mount)
Sigma 24-70/2.8 DG DN Art (Sony E) vs Sirui 50mm T2.9 1.6X Full Frame (Sony E Mount)
When comparing Sirui 50mm T2.9 1.6X Full Frame (Sony E Mount) and Sigma 24-70/2.8 DG DN Art (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 24-70/2.8 DG DN Art (Sony E) has the largest aperture of the two lenses at 2.8 compared to the 2.9 aperture of Sirui 50mm T2.9 1.6X Full Frame - (Sony E Mount). This means that you get more light to your sensor using Sigma 24-70/2.8 DG DN Art (Sony E) wide open, and therefore it might be a better lens in dark situations.
Winner: Sigma 24-70/2.8 DG DN Art (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 50mm T2.9 1.6X Full Frame (Sony E Mount)
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
The Sigma 24-70/2.8 DG DN Art (Sony E) is a Zoom lens while the Sirui 50mm T2.9 1.6X Full Frame - (Sony E Mount) is a Prime lens. Whether or not a zoom lens or a prime lens is what you need, is up to you to decide; they both have their respective strengths and weaknesses.
Winner: Tied — It depends on your gear
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
Neither Sigma 24-70/2.8 DG DN Art (Sony E) or Sirui 50mm T2.9 1.6X Full Frame - (Sony E Mount) feature built-in image stabilization.
Winner: Tied — Neither have this feature
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.
6. Autofocus Comparison
In regards to autofocus, the winner is Sigma 24-70/2.8 DG DN Art (Sony E) since the other lens in this comparison, the Sirui 50mm T2.9 1.6X Full Frame - (Sony E Mount) does not have autofocus at all — it is a manual focus lens.
Winner: Sigma 24-70/2.8 DG DN Art (Sony E)
Regarding autofocus: Lenses with autofocus help you focus when shooting pictures or video. If a lens only has manual focus it means that you have to focus manually by adjusting the focus wheel on the lens. Most cinema lenses do not use autofocus and are manual focus only.
7. Macro Comparison
Neither Sigma 24-70/2.8 DG DN Art (Sony E) or Sirui 50mm T2.9 1.6X Full Frame - (Sony E Mount) are macro lenses.
Winner: Tied — Neither have this feature
Regarding macro: Macro lenses can focus much closer to your subjects and might be suitable when photographing flowers, insects, wildlife and nature.
Specifications
Full specifications table of Sigma 24-70/2.8 DG DN Art (Sony E) and Sirui 50mm T2.9 1.6X Full Frame (Sony E Mount):
| Sigma 24-70/2.8 DG DN Art (Sony E) | Sirui 50mm T2.9 1.6X Full Frame - (Sony E Mount) | |
 |  | |
| Brand | Sigma | Sirui |
| Weight | 830 g | Missing |
| Lens Mount | Sony E | Sony E |
| Focal Length | 24 - 70 mm | 50 mm |
| Largest Aperture | 2.8 | 2.9 |
| Anamorphic | No | Yes |
| Minimum Focus Distance | 18 cm | Missing |
| Type | Zoom | Prime |
| Filter Thread Diameter | 82 | Missing |
| Aperture Blades | 11 | Missing |
| Lens Groups | 15 | Missing |
| Lens Elements | 19 | Missing |
| Image Stabilization | No | No |
| Parfocal | Yes | Missing |
| Autofocus | Evet | Hayır |
| Macro | No | No |
| Weather Seal | Missing | No |
| Full Frame Coverage | Missing | Yes |