Sigma 24mm f/1.4 DG HSM Art vs Tamron SP 24mm f/2.5 Adaptall-2
Both are Pentax K prime lenses for full frame. Here is what actually differs.
Pick the Sigma 24mm f/1.4 DG HSM Art if
- You need 1⅔ stops more light for low light or background blur (f/1.4 vs f/2.5)
- You want autofocus (HSM): the Tamron SP 24mm f/2.5 Adaptall-2 is manual focus only
Pick the Tamron SP 24mm f/2.5 Adaptall-2 if
Our spec data shows no clear advantage for this lens.
Spec differences
10 differences| Sigma 24mm f/1.4 DG HSM Art | Tamron SP 24mm f/2.5 Adaptall-2 | |
|---|---|---|
| Brand |
Sigma
|
Tamron
|
| Max aperture |
f/1.4
1⅔ stops faster
|
f/2.5
|
| Weight |
665 g
|
not listed
|
| Length |
90.2 mm
|
not listed
|
| Diameter |
85 mm
|
not listed
|
| Filter thread |
77 mm
|
55 mm
|
| Max magnification |
0.19×
|
not listed
|
| Aperture blades |
9
|
not listed
|
| Optical design |
15 elements / 11 groups
|
10 elements / 9 groups
|
| Autofocus motor |
HSM
|
Manual focus
|
6 identical specs hidden: mount, type, format, focal length, min focus distance, image stabilization. Show all
- Mount
- Pentax K both
- Type
- Prime both
- Format
- Full frame both
- Focal length
- 24mm both
- Min focus distance
- 0.25 m both
- Image stabilization
- No both
Our notes
Sigma 24mm f/1.4 DG HSM Art
A 24mm f/1.4 full-frame fast wide-angle prime lens, the Sigma 24mm f/1.4 DG HSM Art is designed for Pentax K mount bodies, from the Sigma Art line with Hyper Sonic Motor autofocus. A wide-aperture wide-angle prime from Sigma's Art line, popular for astrophotography and landsca...
Our notes
Tamron SP 24mm f/2.5 Adaptall-2
Tamron SP 24mm f/2.5 Adaptall-2: a wide-angle prime lens with a 24mm focal length and a maximum aperture of f/2.5, made for Pentax K mount cameras, from the Tamron SP series. The wide view suits landscapes, architecture and environmental shots.
More comparisons
Rokinon 24mm f/1.4 ED AS UMC vs Sigma 24mm f/1.4 DG HSM Art
95 g lighter vs autofocus
Samyang 24mm f/3.5 ED AS UMC Tilt-Shift vs Tamron SP 24mm f/2.5 Adaptall-2
focuses closer vs 1 stop faster
Rokinon 24mm f/1.4 ED AS UMC vs Tamron SP 24mm f/2.5 Adaptall-2
Rokinon 24mm f/1.4 ED AS UMC: 1⅔ stops faster
Samyang 24mm f/3.5 ED AS UMC Tilt-Shift vs Sigma 24mm f/1.4 DG HSM Art
focuses closer vs 2⅔ stops faster
Samyang 24mm f/1.4 ED AS IF UMC vs Sigma 24mm f/1.4 DG HSM Art
95 g lighter vs autofocus
Mitakon wide MC f=24mm 1:2.8 vs Tamron SP 24mm f/2.5 Adaptall-2
Tamron SP 24mm f/2.5 Adaptall-2: ⅓ stop faster