Thypoch Simera 21 mm f/1.4 § 03 Head to head
Thypoch Simera 21 mm f/1.4 vs TTartisan 21 mm f/1.5 Leica M
Thypoch 21mm f/1.4 is 0.2 stops brighter maximum aperture. TTartisan 21mm f/1.5 is 23 g lighter.
Both lenses are made for the Leica M mount: the Thypoch Simera 21 mm f/1.4 is a 21mm f/1.4 prime, and the TTartisan 21 mm f/1.5 Leica M is a 21mm f/1.5 prime. On paper the Thypoch Simera 21 mm f/1.4 comes out ahead, 5 advantages to 1, but which one suits you depends on what you shoot.
Thypoch Simera 21 mm f/1.4 
TTartisan 21 mm f/1.5 Leica M 01
Key differences
Why is the Thypoch Simera 21 mm f/1.4 better than the TTartisan 21 mm f/1.5 Leica M?
- 0.2 stops brighter maximum aperture (f/1.4 vs f/1.5)
- 11 mm shorter (66 mm vs 77 mm long)
- Focuses 27 cm closer (0.23 m vs 0.5 m)
- More aperture blades (14 vs 10)
- Newer design (2025 vs 2019)
Why is the TTartisan 21 mm f/1.5 Leica M better than the Thypoch Simera 21 mm f/1.4?
- 23 g lighter (405 g vs 428 g)
02
Which should you buy?
- landscape For landscape photography, the TTartisan 21 mm f/1.5 Leica M has the edge: it is 23 g lighter to carry.
- architecture For architecture, the TTartisan 21 mm f/1.5 Leica M has the edge: it is 23 g lighter to carry.
- low-light For low-light shooting, the Thypoch Simera 21 mm f/1.4 has the edge: its f/1.4 aperture gathers more light than f/1.5.
- astrophotography For astrophotography, the Thypoch Simera 21 mm f/1.4 has the edge: its f/1.4 aperture gathers more light than f/1.5.
03
Specification
| Specification | Thypoch Simera 21 mm f/1.4 | TTartisan 21 mm f/1.5 Leica M |
|---|---|---|
| Focal length | 21mm | 21mm |
| Maximum aperture | f/1.4 ◆ | f/1.5 |
| Minimum aperture | f/16 | f/16 |
| Lens type | Prime lens | Prime lens |
| Format | Full frame | Full frame |
| Weight | 428 g | 405 g ◆ |
| Dimensions | 69.4 x 66 mm | 63 x 77 mm |
| Minimum focusing distance | 0.23 m ◆ | 0.5 m |
| Image stabilization | No | No |
| Aperture blades | 14 ◆ | 10 |
| Optical construction | 13 elements / 11 groups | 13 elements / 11 groups |
| Filter size | 62 mm | — |
| Lens mount | Leica M | Leica M, Sony E, Nikon Z, Canon RF, L-Mount |
| Released | 2025 | 2019 |
| Price | $999 list price | — |
04
Size
- A · Thypoch
- B · TTartisan
- 66 × 69.4 mm
- 77 × 63 mm
The TTartisan 21 mm f/1.5 Leica M is 11 mm longer and 23 g lighter than the Thypoch Simera 21 mm f/1.4.
05
Sample frames
TTartisan 21 mm f/1.5 Leica M
06
Video reviews
07
Questions
- Which lens has the brighter aperture, the Thypoch Simera 21 mm f/1.4 or the TTartisan 21 mm f/1.5 Leica M?
- The Thypoch Simera 21 mm f/1.4 opens to f/1.4, against f/1.5 on the TTartisan 21 mm f/1.5 Leica M, 0.2 stops brighter.
- Which is lighter, the Thypoch Simera 21 mm f/1.4 or the TTartisan 21 mm f/1.5 Leica M?
- The TTartisan 21 mm f/1.5 Leica M weighs 405 g, 23 g less than the Thypoch Simera 21 mm f/1.4 (428 g).
- Which focuses closer, the Thypoch Simera 21 mm f/1.4 or the TTartisan 21 mm f/1.5 Leica M?
- The Thypoch Simera 21 mm f/1.4 focuses down to 0.23 m, against 0.5 m for the TTartisan 21 mm f/1.5 Leica M.
- Do the Thypoch Simera 21 mm f/1.4 and the TTartisan 21 mm f/1.5 Leica M have image stabilization?
- No, neither lens has optical image stabilization; rely on in-body stabilization if your camera has it.
- Is the Thypoch Simera 21 mm f/1.4 or the TTartisan 21 mm f/1.5 Leica M better for landscape photography?
- For landscape photography, the TTartisan 21 mm f/1.5 Leica M has the edge: it is 23 g lighter to carry.
- Is the Thypoch Simera 21 mm f/1.4 or the TTartisan 21 mm f/1.5 Leica M better for architecture?
- For architecture, the TTartisan 21 mm f/1.5 Leica M has the edge: it is 23 g lighter to carry.
08