Yongnuo 50mm F/1.8 DA DSM
Short telephoto prime lens • Digital era
- Announced:
- · April 2020
- Production status:
- ● In production
- Country of design:
- · PRC (People's Republic of China)
- Original name:
- · Ynlens YN50mm F1.8 DA DSM
- Class:
- · Fast APS-C-format short telephoto prime lens
Abbreviations
| DA | The lens is designed for APS-C digital mirrorless cameras. |
| DSM | The lens is equipped with Digital Stepping Motor. |
Model history (2)
| ■Yongnuo 50mm F/1.8 DA DSM | A | 8 - 7 | 0.45m | ⌀49 | 2020 ● | |
| ■Yongnuo 50mm F/1.8 DA DSM [II] | A | 8 - 7 | 0.45m | ⌀49 | 2023 ● | |
Specification
| Optical design: | |
| APS-C | |
| 50mm | |
| F/1.8 | |
| 8 elements in 7 groups | |
| 1 LD | |
| Internal focusing (IF) | |
| Sony E | |
| 31.6° (Sony NEX/a/ZV APS-C) | |
| 35mm equivalent focal length and speed: | |
35mm equivalent focal length: | 76.5mm (in terms of field of view) |
35mm equivalent speed: | F/2.8 (in terms of depth of field) |
| Diaphragm mechanism: | |
Diaphragm type: | Automatic |
Aperture control: | None; the aperture is controlled from the camera |
| 7 (seven) | |
| Focusing: | |
| 0.45m | |
| 1:7.14 | |
Focusing modes: | Autofocus (AF), Manual focus (MF) |
Autofocus motor: | Stepping motor |
Manual focus control: | Focusing ring |
Focus mode selector: | None; focusing mode is set from the camera |
Manual focus override in autofocus mode: | Determined by the camera |
| Optical Image Stabilizer (OIS): | |
| - | |
| Physical characteristics: | |
| 146g | |
| ⌀63×58mm | |
| - | |
| - | |
| Accessories: | |
| Screw-type 49mm | |
| LH-52 T - Bayonet-type round | |
| Not available |
Source of data
- Manufacturer's technical data.
From the editor
A very lightweight budget short telephoto lens for Sony APS-C mirrorless cameras. It has a fairly simple optical formula that does not spoil us with many special elements. Although the lens does not have a record-breaking speed, it is enough to shoot in low light conditions, as well as isolate the subject, smoothly blurring the background.
The closest focusing distance is only 0.45m. In practice, when shooting portraits (head and shoulders / head and chest), focusing distances of 1.5-2m are considered optimal. The DSM stepping motor is responsible for smooth, fast and quiet autofocus.
Since the lens belongs to budget models, it does not have a physical aperture ring, a focus mode switch, or weather sealing. There is a USB Type C connector at the rear of the lens, which can be used to update the lens firmware.
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