§ 03 Head to head
Pentax smc DA 18-270 mm f/3.5-6.3 ED SDM vs Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM
Pentax 18–270mm f/3.5-6.3 has a longer reach. Sigma 18–200mm f/3.5-6.3 is 23 g lighter.
The Pentax smc DA 18-270 mm f/3.5-6.3 ED SDM is an 18–270mm f/3.5-6.3 zoom, and the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM is an 18–200mm f/3.5-6.3 zoom. On paper the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM comes out ahead, 4 advantages to 2, but which one suits you depends on what you shoot.
01
Key differences
Why is the Pentax smc DA 18-270 mm f/3.5-6.3 ED SDM better than the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM?
- Longer reach (270mm vs 200mm)
- 10 mm shorter (75.8 mm vs 86 mm long)
Why is the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM better than the Pentax smc DA 18-270 mm f/3.5-6.3 ED SDM?
- 23 g lighter (430 g vs 453 g)
- Focuses 10 cm closer (0.39 m vs 0.49 m)
- Has optical image stabilization
- Newer design (2014 vs 2012)
02
Which should you buy?
- landscape For landscape photography, the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM has the edge: it is 23 g lighter to carry.
- architecture For architecture, the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM has the edge: it is 23 g lighter to carry.
- macro For macro photography, the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM has the edge: it focuses closer, down to 0.39 m.
03
Specification
| Specification | Pentax smc DA 18-270 mm f/3.5-6.3 ED SDM | Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM |
|---|---|---|
| Focal length | 18–270mm | 18–200mm |
| Maximum aperture | f/3.5-6.3 | f/3.5-6.3 |
| Minimum aperture | f/45 | f/22 |
| Lens type | Zoom lens | Zoom lens |
| Format | APS-C | APS-C |
| Weight | 453 g (15.98 oz) | 430 g (15.17 oz) ◆ |
| Dimensions | 89 x 75.8 mm | 70.7 x 86 mm |
| Minimum focusing distance | 0.49 m (19.29 inches) | 0.39 m (15.35 inches) ◆ |
| Image stabilization | No | Yes ◆ |
| Aperture ring | No | No |
| Aperture blades | 7 | 7 |
| Optical construction | 16 elements / 13 groups | 16 elements / 13 groups |
| Filter size | 62 mm | 62 mm |
| Lens mount | Pentax K | Nikon F, Sony A, Pentax K, Canon EF-S |
| Released | 2012 | 2014 |
| Price | $799.95 launch price | — |
04
Size
- A · Pentax
- B · Sigma
- 75.8 × 89 mm
- 86 × 70.7 mm
The Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM is 10 mm longer and 23 g lighter than the Pentax smc DA 18-270 mm f/3.5-6.3 ED SDM.
05
Sample frames
Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM
06
Video reviews
07
Questions
- Which is lighter, the Pentax smc DA 18-270 mm f/3.5-6.3 ED SDM or the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM?
- The Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM weighs 430 g, 23 g less than the Pentax smc DA 18-270 mm f/3.5-6.3 ED SDM (453 g).
- Which focuses closer, the Pentax smc DA 18-270 mm f/3.5-6.3 ED SDM or the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM?
- The Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM focuses down to 0.39 m, against 0.49 m for the Pentax smc DA 18-270 mm f/3.5-6.3 ED SDM.
- Do the Pentax smc DA 18-270 mm f/3.5-6.3 ED SDM and the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM have image stabilization?
- Only the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM has optical image stabilization.
- Is the Pentax smc DA 18-270 mm f/3.5-6.3 ED SDM or the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM better for landscape photography?
- For landscape photography, the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM has the edge: it is 23 g lighter to carry.
- Is the Pentax smc DA 18-270 mm f/3.5-6.3 ED SDM or the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM better for architecture?
- For architecture, the Sigma C 18-200 mm f/3.5-6.3 DC Macro OS HSM has the edge: it is 23 g lighter to carry.
08



