Sony FE 20mm F1.8 G vs Sony FE 24mm F1.4 GM
Better figure, where one is clearly better
| SonyFE 20mm F1.8 G | SonyFE 24mm F1.4 GM | |
|---|---|---|
| Overview | ||
| Released | March 2020 | October 2018 |
| Optics | ||
| Lens type | Prime | Prime |
| Focal length | 20 mm | 24 mm |
| Maximum aperture | f/1.8 | f/1.4 |
| Minimum aperture | f/22 | f/16 |
| Optical construction | 14 elements in 12 groups | 13 elements in 10 groups |
| Special elements | Two AA advanced-aspherical elements and three ED glass elements | Two XA extreme-aspherical elements and three ED glass elements |
| Coatings | Nano AR Coating; fluorine coating on front element | Nano AR Coating; fluorine coating on front element |
| Diaphragm | Nine rounded blades | 11 rounded blades |
| Angle of view | 94° full frame; 70° APS-C | 84° full frame; 61° APS-C |
| Mount and compatibility | ||
| Mounts | Sony E | Sony E |
| Image circle | Full frame | Full frame |
| Image circle detail | Full-frame coverage; 30 mm equivalent field of view on APS-C | Full-frame coverage; 36 mm equivalent field of view on APS-C |
| Teleconverter support | Not compatible with SEL14TC or SEL20TC | Not compatible with SEL14TC or SEL20TC |
| Focus and stabilisation | ||
| Autofocus | Yes | Yes |
| Minimum focus distance | 0.18 m (manual focus) | 0.24 m |
| Maximum magnification | 0.22× (manual focus) | 0.17× |
| Optical stabilisation | No | No |
| Autofocus detail | Two XD linear motors; internal focusing | High-power DDSSM direct-drive ultrasonic motor; internal focusing |
| Focus distance detail | Minimum focus 0.19 m with autofocus or 0.18 m with manual focus; Linear Response MF | Minimum focus 0.24 m; Linear Response MF |
| Magnification detail | Maximum magnification 0.20× with autofocus or 0.22× with manual focus | Maximum magnification 0.17× |
| Stabilisation detail | No lens stabilisation; compatible bodies provide stabilisation | No lens stabilisation; compatible bodies provide stabilisation |
| Design | ||
| Dust and moisture resistant | Yes | Yes |
| Filter diameter | 67 mm | 67 mm |
| Maximum diameter | 73.5 mm | 75.4 mm |
| Length | 84.7 mm | 92.4 mm |
| Weight | 373 g (better) | 445 g |
| Controls | Aperture ring with click on/off, AF/MF switch and one customisable focus-hold button | Aperture ring with click on/off, AF/MF switch and one customisable focus-hold button |
| Weather resistance | Dust- and moisture-resistant design; not guaranteed completely dust- or moisture-proof | Dust- and moisture-resistant design; not guaranteed completely dust- or moisture-proof |
| Weight detail | Approximately 373 g lens; separate hood and caps excluded | Approximately 445 g lens; separate hood and caps excluded |
| Lens hood | ALC-SH162 petal bayonet hood | ALC-SH154 petal bayonet hood |
| In the box | ALC-SH162 hood, ALC-F67S front cap, ALC-R1EM rear cap and soft case | ALC-SH154 hood, ALC-F67S front cap, ALC-R1EM rear cap and carrying case |
| Release detail | Sony Japan specified 13 March 2020 sale, separate from 3 March pre-orders. Photography Blog already described availability on 2 March, without an exact first-sale day for that market; main date retains March precision, with Japanese day qualified here. No UK list price imported from review pricing | Sony US announced shipment in October 2018; Sony Japan specified 26 October 2018 sale. Main date retains the earlier regional month precision. Digital Camera World explicitly based its review on one day of shooting and had no full laboratory results; its edge-sharpness reservations differ from Photography Blog’s assessment |
