Pentax smc Pentax-DA 15mm f/4 ED AL Limited vs Sigma 15mm f/2.8 EX DG Diagonal Fisheye
Both are Pentax K lenses. Here is what actually differs.
Pick the Pentax smc Pentax-DA 15mm f/4 ED AL Limited if
- You want the lighter lens to carry: 158 g lighter (212 g vs 370 g)
- Our notes say it suits: Landscapes, street, travel
Pick the Sigma 15mm f/2.8 EX DG Diagonal Fisheye if
- You need 1 stop more light for low light or background blur (f/2.8 vs f/4)
- You shoot close-ups: it focuses down to 0.15 m vs 0.18 m
- You want bigger close-ups: 0.26× vs 0.15× maximum magnification
- You shoot full frame: the Pentax smc Pentax-DA 15mm f/4 ED AL Limited is made for APS-C
Spec differences
13 differences| Pentax smc Pentax-DA 15mm f/4 ED AL Limited | Sigma 15mm f/2.8 EX DG Diagonal Fisheye | |
|---|---|---|
| Brand |
Pentax
|
Sigma
|
| Type |
Prime
|
Fisheye
|
| Format |
APS-C
|
Full frame
|
| Max aperture |
f/4
|
f/2.8
1 stop faster
|
| Weight |
212 g
lighter
|
370 g
|
| Length |
40 mm
|
not listed
|
| Diameter |
63 mm
|
not listed
|
| Filter thread |
49 mm
|
not listed
|
| Min focus distance |
0.18 m
|
0.15 m
closer
|
| Max magnification |
0.15×
|
0.26×
larger
|
| Optical design |
8 elements / 6 groups
|
7 elements / 6 groups
|
| Autofocus motor |
screw-drive
|
not listed
|
| Released |
2009
|
not listed
|
4 identical specs hidden: mount, focal length, aperture blades, image stabilization. Show all
- Mount
- Pentax K both
- Focal length
- 15mm both
- Aperture blades
- 7 both
- Image stabilization
- No both
Our notes
Pentax smc Pentax-DA 15mm f/4 ED AL Limited
A compact wide-angle prime for Pentax APS-C bodies, weighing about 212 g. It takes 49mm filters and focuses as close as 0.18 m.
Pros
- Compact
- Close focus 0.18 m
- 49mm filters
- Metal build
Cons
- f/4 is slow
- APS-C only
- Screw-drive autofocus
Our notes
Sigma 15mm f/2.8 EX DG Diagonal Fisheye
This 15mm f/2.8 full-frame fisheye lens from Sigma fits Pentax K mount cameras. It suits dramatic perspectives, astrophotography and creative wide-field work.
More comparisons
Pentax smc Pentax-DA 15mm f/4 ED AL Limited vs Laowa 15mm f/4 Wide Angle Macro
landscapes vs focuses closer
Laowa 15mm f/4 Wide Angle Macro vs Sigma 15mm f/2.8 EX DG Diagonal Fisheye
focuses closer vs 1 stop faster
Pentax smc Pentax-DA 15mm f/4 ED AL Limited vs Laowa 15mm f/4.5 Zero-D Shift
⅓ stop faster vs covers full frame
Sigma 15mm f/2.8 EX DG Diagonal Fisheye vs Zeiss Distagon T* 15mm f/2.8 ZE
Sigma 15mm f/2.8 EX DG Diagonal Fisheye vs Zeiss Distagon T* 15mm f/2.8 ZF.2
Pentax smc Pentax-DA 15mm f/4 ED AL Limited vs Zeiss Distagon T* 15mm f/2.8 ZE
landscapes vs 1 stop faster