Irix 15 mm f/2.4 Blackstone § 03 Head to head
Irix 15 mm f/2.4 Blackstone vs Samyang Premium MF 14mm F2.4
Irix 15mm f/2.4 has a longer reach. Samyang 14mm f/2.4 has a wider field of view.
Both lenses are made for the Canon EF mount: the Irix 15 mm f/2.4 Blackstone is a 15mm f/2.4 prime, and the Samyang Premium MF 14mm F2.4 is a 14mm f/2.4 prime. On paper the Samyang Premium MF 14mm F2.4 comes out ahead, 4 advantages to 3, but which one suits you depends on what you shoot.
Irix 15 mm f/2.4 Blackstone 
Samyang Premium MF 14mm F2.4 01
Key differences
Why is the Irix 15 mm f/2.4 Blackstone better than the Samyang Premium MF 14mm F2.4?
- Longer reach (15mm vs 14mm)
- 106 g lighter (685 g vs 791 g)
- Is weather sealed
Why is the Samyang Premium MF 14mm F2.4 better than the Irix 15 mm f/2.4 Blackstone?
- Wider field of view (14mm vs 15mm)
- 5 mm shorter (109.4 mm vs 114 mm long)
- Has a physical aperture ring
- Newer design (2017 vs 2016)
02
Which should you buy?
- landscape For landscape photography, the Samyang Premium MF 14mm F2.4 has the edge: it goes wider, to 14mm against 15mm.
- architecture For architecture, the Samyang Premium MF 14mm F2.4 has the edge: it goes wider, to 14mm against 15mm.
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Specification
| Specification | Irix 15 mm f/2.4 Blackstone | Samyang Premium MF 14mm F2.4 |
|---|---|---|
| Focal length | 15mm | 14mm |
| Maximum aperture | f/2.4 | f/2.4 |
| Minimum aperture | f/22 | f/22 |
| Lens type | Prime lens | Ultra wide-angle prime lens |
| Format | Full frame | Full Frame |
| Weight | 685 g (24.16 oz) ◆ | 791 g (1.74 lbs) |
| Dimensions | 114 x 100 mm | 95 mm (diameter) x 109.4 mm (length) |
| Minimum focusing distance | 0.28 m (11.02 inches) | 0.28 m (11 in) |
| Maximum magnification | — | 0.08x |
| Image stabilization | No | No |
| Weather sealing | Yes ◆ | No |
| Aperture ring | No | Yes |
| Aperture blades | 9 | 9 |
| Optical construction | 15 elements / 11 groups | 18 elements in 14 groups (2 aspherical, 1 hybrid aspherical, 2 extra-low dispersion, 3 high refractive index elements) |
| Filter size | 95 mm | — |
| Lens mount | Canon EF, Nikon F, Pentax K, Sony E | Canon EF, Nikon F, Sony E |
| Released | 2016 | 2017 |
04
Size
- A · Irix
- B · Samyang
- 114 × 100 mm
- 109.4 × 95 mm
The Irix 15 mm f/2.4 Blackstone is 5 mm longer and 106 g lighter than the Samyang Premium MF 14mm F2.4.
05
Sample frames
Irix 15 mm f/2.4 Blackstone
Samyang Premium MF 14mm F2.4
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Video reviews
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Questions
- Which is lighter, the Irix 15 mm f/2.4 Blackstone or the Samyang Premium MF 14mm F2.4?
- The Irix 15 mm f/2.4 Blackstone weighs 685 g, 106 g less than the Samyang Premium MF 14mm F2.4 (791 g).
- Do the Irix 15 mm f/2.4 Blackstone and the Samyang Premium MF 14mm F2.4 have image stabilization?
- No, neither lens has optical image stabilization; rely on in-body stabilization if your camera has it.
- Is the Irix 15 mm f/2.4 Blackstone or the Samyang Premium MF 14mm F2.4 better for landscape photography?
- For landscape photography, the Samyang Premium MF 14mm F2.4 has the edge: it goes wider, to 14mm against 15mm.
- Is the Irix 15 mm f/2.4 Blackstone or the Samyang Premium MF 14mm F2.4 better for architecture?
- For architecture, the Samyang Premium MF 14mm F2.4 has the edge: it goes wider, to 14mm against 15mm.