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Sony FE 20mm F1.8 G Lens Compared to the Tamron 20mm f/2.8 Di III OSD M1:2 Lens
| Specifications | Sony FE 20mm F1.8 G Lens | Tamron 20mm f/2.8 Di III OSD M1:2 Lens |
|---|---|---|
 |
 |
|
| Year Introduced | 2020 | 2019 |
| Mounts On | Full-Frame, APS-C | Full-Frame, APS-C |
| Lenses / Groups | 14/12 | 10/9 |
| Angle of View: Diagonal | 94° | 94° 30' |
| Aperture | ||
| Aperture Range - Wide / Long | f/1.8-22 | f/2.8-22 |
| Number of Aperture Blades | 9 | 7 |
| Rounded Aperture? | Y | Y |
| Weight | ||
| Manufacturer Specification Weight | 13.2 oz (373g) | 7.8 oz (221g) |
| Actual Weight | 13.2 oz (375g) | 7.8 oz (220g) |
| Lens Hood Weight | 0.7 oz (20g) | 0.7 oz (20g) |
| In-Use Weight | 13.9 oz (395g) | 8.5 oz (240g) |
| Size | ||
| Manufacturer Spec Size (DxL) | 2.89 x 3.33” (73.5 x 84.7mm) | 2.87 x 2.5” (73 x 63.5mm) |
| Measured Size (DxL) | 2.9 x 3.57” (74 x 90.7mm) | 2.87 x 2.74” (73 x 69.6mm) |
| Max Length at Full Extension | 3.57” (90.7mm) | 2.74” (69.6mm) |
| Internal Focusing? / Extends with Focusing? | Y / N | Y / N |
| Lens Hood Size (DxL) | 3.28 x 1.1” (83.4 x 28mm) | 3.42 x 1.04” (86.8 x 26.5mm) |
| Lens Length with Hood (Min-Max) | 4.37 - 4.37” (111.1 - 111.1mm) | 3.48 - 3.48” (88.4 - 88.4mm) |
| Size of Rings: Focus / Zoom | 0.8” (20.3mm) | 0.69” (17.5mm) |
| Filter Size | 67mm UV ► CP ► | 67mm UV ► CP ► |
| Front Element (Filter Mount) Rotates | N | N |
| Focus | ||
| AF Motor Type | Dual XD Linear | OSD |
| Full Time Manual Focus | Y | Y |
| Focus Ring Rotation | 165° | 270° |
| Focus Limiter? / Focus Limiter Ranges | N | N |
| Distance Scale? / Type | N | N |
| Close Focus | ||
| Spec Min Focus Distance (Wide / Long) | 7.09” (180mm) | 4.29” (109mm) |
| Tested Min Focus Distance (Wide / Long) | 6.42” (163mm) | 4.37” (111mm) |
| Maximum Magnification | 0.20x | 0.50x |
| Features | ||
| Tripod Ring Included? / Removable? | N | / |
| Lens Hood Included / Model? | Y / ALC-SH162 Buy ► | Y / HF050 Buy ► |
| Weather Sealed? / Filter Required? | Y / | Y / |
| Image Stabilization? / Stops? / Tripod Sensing? | N | N |
| Extender Compatible? | N | N |
| Case Included? / Type? | Y / Pouch | N / |
| 47.25" x 31.5" Subject Framing Distance | 20mm = 2.42' | 20mm = 2.14' |
| 1200mm x 800mm Subject Framing Distance | 20mm = 737mm | 20mm = 652mm |
| Review | Sony FE 20mm F1.8 G Lens | Tamron 20mm f/2.8 Di III OSD M1:2 Lens |
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