Samyang 100mm f/2.8 ED UMC Macro 100mm
With a 1:1 maximum magnification and 307mm minimum focus distance, this 100mm f/2.8 macro lens uses one extra-low dispersion element and Ultra Multi-Coating to suppress aberrations and flare. Its manual focus design and rounded 9-blade diaphragm enable precise composition and smooth bokeh, while the internal focus keeps the 67mm filter thread non-rotating for easy polarizer use. This lens is best for Pentax K macro shooters who need true 1:1 reproduction on a budget and are comfortable working without autofocus.
Snapshot
Pros & Cons
Pros
- Strong optical (78th percentile) 78th
- Strong macro (68th percentile) 68th
Cons
- Below average aperture (5th percentile)
- Below average bokeh (8th percentile)
- Below average af (14th percentile)
- Below average user sentiment (30th 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.
Based on 15 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Macro |
| Focal Length Min | 100 |
| Focal Length Max | 100 |
| Elements | 15 |
| Groups | 12 |
| Aspherical Elements | 1 |
| ED Elements | 1 |
| Coating | Ultra Multi-Coating |
Aperture
| Max Aperture | f/32 |
| Min Aperture | f/2.8 |
| Constant | Yes |
| Diaphragm Blades | 9 |
Build
| Mount | Canon EF |
| Format | full-frame |
| Weight | 0.7 kg / 1.6 lbs |
| Filter Thread | 67 |
AF & Stabilization
| AF Type | manual focus only |
| Stabilization | No |
Focus
| Min Focus Distance | 307 |
| Max Magnification | 1:1 |
vs Competition
| Spec | Samyang 100mm f/2.8 ED UMC Macro 100mm | Tamron Di III 28-75mm f/2.8 VXD G2 | Sigma Contemporary 10-18mm f/2.8 DC DN | Nikon NIKKOR Z DX 16-50mm f/3.5-6.3 VR | Panasonic LUMIX S S-R2060 | Fujifilm XF 18mm f/1.4 R LM WR |
|---|---|---|---|---|---|---|
| Focal Length | 100mm | 28-75mm | 10-18mm | 16-50mm | 20-60mm | 18mm |
| Max Aperture | f/32 | f/2.8 | f/2.8 | f/3.5 | f/3.5 | f/16 |
| Mount | Canon EF | Sony E | Sony E | Nikon Z | L-Mount | Fujifilm X |
| Stabilization | false | false | false | true | false | false |
| Weather Sealed | false | true | true | false | true | true |
| Weight (g) | 726 | 540 | 260 | 135 | 350 | 370 |
| AF Type | manual focus only | VXD | Autofocus | Stepping Motor | stepping motor | Linear motor |
| Lens Type | macro | zoom | zoom | zoom | zoom | prime |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Samyang 100mm f/2.8 ED UMC Macro 100mm | 13.9 | 7.7 | 37.1 | 67.6 | 77.6 | 4.9 | 29.8 | 33.6 | 36.2 | 38 |
| Tamron Di III 28-75mm f/2.8 VXD G2 Compare | 54.6 | 88.2 | 67.3 | 87.3 | 87.8 | 85.9 | 80.4 | 78.2 | 83 | 38 |
| Sigma Contemporary 10-18mm f/2.8 DC DN Compare | 54.6 | 83.6 | 87.4 | 93.3 | 81.6 | 85.9 | 80.4 | 69.1 | 68.6 | 38 |
| Nikon NIKKOR Z DX 16-50mm f/3.5-6.3 VR Compare | 87 | 77.9 | 91.8 | 42.4 | 71.5 | 80 | 0 | 82.9 | 73.4 | 94.9 |
| Panasonic LUMIX S S-R2060 Compare | 87 | 86.3 | 80.6 | 66.2 | 76.4 | 80 | 0 | 81.5 | 64.6 | 38 |
| Fujifilm XF 18mm f/1.4 R LM WR Compare | 98 | 41.3 | 79.4 | 84.1 | 83.4 | 45.9 | 90.8 | 33.6 | 87.8 | 38 |
Price
Value & Pricing
Amazon 2 offers From $249
Price History
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
