Sigma 738109 150-500mm
The 500mm reach with built-in 4-stop optical stabilization makes handheld super-telephoto shooting practical without a tripod. Its HSM autofocus motor and three ED glass elements deliver quiet, sharp results at a budget-friendly price point for the focal range. This lens is best for Pentax DSLR wildlife and motorsport photographers who need affordable 500mm reach and can manage its 1780g weight.
Focal length 150-500mm
Aperture f/5
Mount Pentax KAF3
stabilization Yes
Weight 1970 g
af type HSM
lens type zoom
55 Overall Score
Price $0
Snapshot
Pros & Cons
Pros
- Strong stabilization (93rd percentile) 93rd
- Strong versatility (84th percentile) 84th
- Strong social proof (72nd percentile) 72nd
Cons
- Below average build (9th percentile)
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews - so you can see whether early praise held up.
Owner sentiment has improved over time
85/100Our AI sentiment read
Based on 15 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Zoom |
| Focal Length Min | 150 |
| Focal Length Max | 500 |
| ED Elements | 3 |
| Coating | Super Multi-Layer Coating |
Aperture
| Max Aperture | f/5 |
| Min Aperture | 4.5-6.3 |
| Constant | No |
Build
| Mount | Pentax KAF3 |
| Format | full-frame |
| Weight | 2.0 kg / 4.3 lbs |
| Filter Thread | 95 |
AF & Stabilization
| AF Type | HSM |
| Stabilization | Yes |
| Stabilization Stops | 4 |
Focus
| Min Focus Distance | 500 |
vs Competition
| Spec | Sigma 738109 150-500mm | Tamron Di III VC 28-300mm f/4-7.1 VXD | Nikon NIKKOR Z 17-28mm f/2.8 | Panasonic Leica DG Vario-Elmarit H-ES12035 | Sony E 18-135mm f/3.5-5.6 OSS | Viltrox Pro AF 27mm f/1.2 |
|---|---|---|---|---|---|---|
| Focal Length | 150-500mm | 28-300mm | 17-28mm | 12-35mm | 18-135mm | 27mm |
| Max Aperture | f/5 | f/4 | f/2.8 | f/2.8 | f/3.5 | f/1.2 |
| Mount | Pentax KAF3 | Sony E | Nikon Z | Micro Four Thirds | Sony E | Sony E |
| Stabilization | true | true | false | true | true | false |
| Weather Sealed | false | true | true | true | false | true |
| Weight (g) | 1970 | 590 | 450 | 306 | 326 | 560 |
| AF Type | HSM | VXD linear motor | Stepping Motor | Autofocus | Linear motor | STM |
| Lens Type | zoom | zoom | zoom | zoom | zoom | prime |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Sigma 738109 150-500mm | 53.9 | 54.1 | 8.5 | 57.5 | 58.8 | 54.7 | 63.7 | 84.2 | 71.9 | 93.3 |
| Tamron Di III VC 28-300mm f/4-7.1 VXD Compare | 98 | 78.2 | 65.1 | 85.8 | 96.7 | 66.3 | 91.2 | 97.7 | 55 | 82.4 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 86.9 | 87.3 | 75.2 | 85.8 | 88.2 | 84.2 | 91.2 | 68 | 69.1 | 36.8 |
| Panasonic Leica DG Vario-Elmarit H-ES12035 Compare | 53.9 | 82.1 | 85.4 | 51 | 86.5 | 84.2 | 63.7 | 80.6 | 85.1 | 96.9 |
| Sony E 18-135mm f/3.5-5.6 OSS Compare | 98 | 75.7 | 72.5 | 40.3 | 78.5 | 77.6 | 44.7 | 95.8 | 89.6 | 82.4 |
| Viltrox Pro AF 27mm f/1.2 Compare | 86.9 | 98.5 | 67.4 | 38.5 | 82.2 | 98.6 | 91.2 | 33.6 | 89.6 | 36.8 |
Price
Value & Pricing
Price History
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
