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Tamron 11-20mm F/2.8 Di III-A RXD Lens Compared to the Sigma 10-18mm F2.8 DC DN Contemporary Lens
| Specifications | Tamron 11-20mm F/2.8 Di III-A RXD Lens | Sigma 10-18mm F2.8 DC DN Contemporary Lens |
|---|---|---|
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| Year Introduced | 2021 | 2023 |
| Mounts On | APS-C | APS-C |
| Lenses / Groups | 12/10 | 13/10 |
| Angle of View: Diagonal | 105° 20' - 71° 35' | 109.7°-76.5° |
| Aperture | ||
| Aperture Range - Wide / Long | f/2.8-16 | f/2.8-22 |
| Number of Aperture Blades | 7 | 7 |
| Rounded Aperture? | Y | Y |
| Weight | ||
| Manufacturer Specification Weight | 11.8 oz (335g) | 9 oz (255g) |
| Actual Weight | 11.8 oz (333.5g) | 8.9 oz (252g) |
| Lens Hood Weight | 0.8 oz (22.1g) | 0.6 oz (17.8g) |
| In-Use Weight | 12.6 oz (355.6g) | 9.5 oz (269.8g) |
| Size | ||
| Manufacturer Spec Size (DxL) | 2.87 x 3.39” (73 x 86.2mm) | 2.83 x 2.52” (72 x 64mm) |
| Measured Size (DxL) | 2.87 x 3.59” (73 x 91.3mm) | 2.84 x 2.74” (72.2 x 69.7mm) |
| Max Length at Full Extension | 3.84” (97.6mm) | 3.05” (77.4mm) |
| Internal Zoom? / Extends with Zoom? | N / Y | N / Y |
| Zoom Extension Length | 0.25” (6.3mm) | 0.3” (7.7mm) |
| Internal Focusing? / Extends with Focusing? | Y / N | Y / N |
| Lens Hood Size (DxL) | 3.41 x 1.28” (86.7 x 32.5mm) | 3.12 x 1.09” (79.3 x 27.8mm) |
| Lens Length with Hood (Min-Max) | 4.56 - 4.8” (115.7 - 122mm) | 3.45 - 3.75” (87.6 - 95.3mm) |
| Size of Rings: Focus / Zoom | 0.45” / 1.07” (11.4mm / 27.1mm) | 0.5” / 0.68” (12.7mm / 17.3mm) |
| Filter Size | 67mm UV ► CP ► | 67mm UV ► CP ► |
| Front Element (Filter Mount) Rotates | N | N |
| Focus | ||
| AF Motor Type | RXD | Stepping Motor |
| Full Time Manual Focus | Y | Y |
| Focus Ring Rotation | 800° | 600° |
| Focus Limiter? / Focus Limiter Ranges | N | N |
| Distance Scale? / Type | N | N |
| Close Focus | ||
| Specified Min Focus Distance | 5.91” (150mm) | 4.57” (116mm) |
| Tested Min Focus Distance (Wide / Long) | 4.33” / 6.1” (110mm / 155mm) | |
| Maximum Magnification (MM) | 0.25x | 0.25x |
| Features | ||
| Zoom Ring Rotation | 60° | 60° |
| Tripod Ring Included? / Removable? | N | N |
| Lens Hood Included / Model? | Y / HA046 Buy ► | Y / LH706-02 Buy ► |
| Weather Sealed? / Filter Required? | Y / | N |
| Image Stabilization? / Stops? / Tripod Sensing? | N | N |
| Extender Compatible? | N | N |
| Case Included? / Type? | N / | N / |
| 47.25" x 31.5" Subject Framing Distance | On APS-C DSLR: 11mm = 2.14' 14mm = 2.66' 16mm = 3.03' 18mm = 3.40' 20mm = 3.65' |
10mm = 1.82' 12mm = 2.17' 14mm = 2.56' 16mm = 2.94' 18mm = 3.24' |
| 1200mm x 800mm Subject Framing Distance | On APS-C DSLR: 11mm = 653mm 14mm = 812mm 16mm = 924mm 18mm = 1037mm 20mm = 1113mm |
10mm = 555mm 12mm = 661mm 14mm = 780mm 16mm = 896mm 18mm = 987mm |
| Review | Tamron 11-20mm F/2.8 Di III-A RXD Lens | Sigma 10-18mm F2.8 DC DN Contemporary Lens |
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