Samyang 20mm f/1.8 ED AS UMC vs T1.9 ED AS UMC
Both are Pentax K prime lenses for full frame. Here is what actually differs.
Spec differences
2 differences| f/1.8 ED AS UMC | T1.9 ED AS UMC | |
|---|---|---|
| Max aperture |
f/1.8
|
f/1.9
|
| Weight |
493 g
|
not listed
|
12 identical specs hidden: brand, mount, type, format, focal length, length, diameter, filter thread, min focus distance, optical design, autofocus motor, image stabilization. Show all
- Brand
- Samyang both
- Mount
- Pentax K both
- Type
- Prime both
- Format
- Full frame both
- Focal length
- 20mm both
- Length
- 86.9 mm both
- Diameter
- 83 mm both
- Filter thread
- 77 mm both
- Min focus distance
- 0.2 m both
- Optical design
- 13 elements / 12 groups both
- Autofocus motor
- Manual focus both
- Image stabilization
- No both
Our notes
Samyang 20mm f/1.8 ED AS UMC
This 20mm f/1.8 fast wide-angle prime lens from Samyang fits Pentax K mount cameras, with extra-low dispersion glass and aspherical elements. The wide view suits landscapes, architecture and environmental shots.
Our notes
Samyang 20mm T1.9 ED AS UMC
More comparisons
Samyang 20mm f/1.8 ED AS UMC vs Sigma 20mm f/1.8 EX DG ASPHERICAL RF
Samyang 20mm T1.9 ED AS UMC vs Sigma 20mm f/1.8 EX DG ASPHERICAL RF
Samyang 20mm f/1.8 ED AS UMC vs Sigma 20mm f/1.4 DG HSM Art
457 g lighter vs ⅔ stop faster
Sigma 20mm f/1.4 DG HSM Art vs Samyang 20mm T1.9 ED AS UMC
1 stop faster vs focuses closer
Samyang 20mm f/1.8 ED AS UMC vs Pentax smc Pentax-A 20mm f/2.8
Samyang 20mm f/1.8 ED AS UMC: 1⅓ stops faster, focuses closer
Pentax smc Pentax-A 20mm f/2.8 vs Samyang 20mm T1.9 ED AS UMC
Samyang 20mm T1.9 ED AS UMC: 1 stop faster, focuses closer