Cine 21 mm T1.5 vs Ventum 21 mm f/2.8
Irix
Cine 21 mm T1.5
Carl Zeiss
Ventum 21 mm f/2.8
Here we are comparing the Irix Cine 21 mm T1.5 and the Carl Zeiss Ventum 21 mm f/2.8. The Irix Cine 21 mm T1.5 is a 21mm wide-angle prime lens with a maximum aperture of f/1.5, released in 2022. The Carl Zeiss Ventum 21 mm f/2.8 is a 21mm wide-angle prime lens with a maximum aperture of f/2.8, released in 2019.
There is a 3 years difference between the Carl Zeiss Ventum 21 mm f/2.8 and the Irix Cine 21 mm T1.5 — 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 | Lightest |
|---|---|---|
| Mount | ||
| Sensor Size | MFT | Full Frame |
| Best For | Landscape Budget | Landscape |
Price & Availability | ||
| Shop | ||
Optical Specifications | ||
| Focal Length | 21 mm | 21 mm |
| Aperture | f/1.5 | f/2.8 |
| Aperture Blades | 11 | - |
Features | ||
| Autofocus | No | Yes |
| Image Stabilization | No | No |
| Weather Sealed | No | No |
Close-up Performance | ||
| Min. Focus Distance | 0.3 m | - |
| Max. Magnification | 0.08x | - |
Physical Specifications | ||
| Weight | 1229 g | 227 g |
| Length | 95 mm | 62 mm |
| Diameter | 129 mm | 67.8 mm |
| Filter Thread | - | 52 mm |
Price & Availability | ||
| Release Year | 2022 | 2019 |
| Shop | ||
Shopping links may contain affiliate codes that support this site at no extra cost to you.
Comparing Irix Cine 21 mm T1.5 (21 mm, f/1.5) and Carl Zeiss Ventum 21 mm f/2.8 (21 mm, f/2.8).
Carl Zeiss Ventum 21 mm f/2.8 is the lightest at 227 g, Irix Cine 21 mm T1.5 weighs 1229 g.
Irix Cine 21 mm T1.5 offers the fastest maximum aperture at f/1.5, allowing for better low-light performance and shallower depth of field.
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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