Pentax DA 50mm f/1.8 50mm
An f/1.8 aperture and built-in stabilization make this a versatile 122g prime for Pentax APS-C cameras, offering sharp portraits with smooth bokeh. Its affordable price and 4.6/5 customer rating across 5,328 reviews highlight its value for budget-conscious photographers. Best for Pentax DSLR owners seeking a lightweight, fast standard lens for portraits and low-light shots.
概览
用户评价
用户口碑如何随时间变化
独家依据客户实际撰写评价的时间--让你看到最初的好评是否持续。
- Q3 201595/100
Buyers praise the lens for excellent sharpness, consistent across the frame, and great value. Some note plastic build but find it robust. Minor issues: color fringing wide open, loud screw-drive AF, and no QuickShift.
- Excellent sharpness, especially from f2.8 to f8, with consistent edge performance.
- Plastic build and mount feel robust but lack premium materials; acceptable at this price.
- Autofocus is accurate but loud due to screw-drive; hunts in low light.
- No QuickShift, aperture ring, or distance markings; some color fringing wide open.
- Q4 201395/100
Buyers praised the lens as excellent value, sharp, and lightweight, ideal for amateurs and portraits. Minor noise and narrow focal length noted.
- Excellent value for money, great image quality and sharpness.
- Lightweight and good build quality, suitable for everyday use.
- 50mm focal length is narrow, better for portraits than general use.
- Autofocus is a bit loud, but not a dealbreaker.
基于 56 条带日期的客户评价，按日历季度分组。分期分析为英文。
实测数据
Performance
Specifications
Full Specifications
Optics
| Type | Prime |
| Focal Length Min | 50 |
| Focal Length Max | 50 |
| Elements | 6 |
| Groups | 5 |
| Coating | SP Coating |
Aperture
| Max Aperture | f/22 |
| Min Aperture | f/1.8 |
| Constant | Yes |
| Diaphragm Blades | 7 |
Build
| Mount | Pentax K |
| Format | APS-C |
| Weather Sealed | No |
| Weight | 0.1 kg / 0.3 lbs |
| Filter Thread | 52 |
AF & Stabilization
| AF Type | Autofocus |
| Stabilization | No |
Focus
| Min Focus Distance | 451 |
| Max Magnification | 1:6.67 |
vs Competition
| Spec | Pentax DA 50mm f/1.8 50mm | Nikon NIKKOR Z DX 16-50mm f/3.5-6.3 VR | Sony E PZ 16-50mm f/3.5-5.6 OSS | Tamron Di III VXD G2 28-75mm f/2.8 | Viltrox Air AF 14mm F4.0 Air | GoPro HB-Series AEWAL-001 |
|---|---|---|---|---|---|---|
| Focal Length | 50mm | 16-50mm | 16-50mm | 28-75mm | 14mm | - |
| Max Aperture | f/22 | f/3.5 | f/3.5 | f/2.8 | f/4 | f/0 |
| Mount | Pentax K | Nikon Z | Sony E | Sony E | Nikon Z | GoPro HERO Black Mount |
| Stabilization | false | true | true | false | true | true |
| Weather Sealed | false | false | true | true | true | true |
| Weight (g) | 122 | 135 | 107 | 540 | 185 | 100 |
| AF Type | Autofocus | Stepping Motor | Autofocus | VXD linear motor | STM | - |
| Lens Type | prime | zoom | zoom | zoom | wide-angle | wide-angle |
| Compare | Compare | Compare | Compare | Compare |
| 产品 | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | 用户口碑 | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Pentax DA 50mm f/1.8 50mm | 53.7 | 13.2 | 95 | 59.8 | 39.1 | 20.1 | 90.8 | 33.6 | 86 | 36.7 |
| Nikon NIKKOR Z DX 16-50mm f/3.5-6.3 VR Compare | 87.6 | 73.7 | 92.8 | 44.5 | 74.5 | 75.9 | 0 | 83.1 | 78.7 | 95.4 |
| Sony E PZ 16-50mm f/3.5-5.6 OSS Compare | 53.7 | 73.7 | 98.6 | 43.2 | 69 | 75.9 | 63.5 | 83.1 | 82 | 93.5 |
| Tamron Di III VXD G2 28-75mm f/2.8 Compare | 98.2 | 85.7 | 70.2 | 85.8 | 89.1 | 82.8 | 80.5 | 78.4 | 15.1 | 36.7 |
| Viltrox Air AF 14mm F4.0 Air Compare | 87.6 | 62.9 | 94.7 | 54.2 | 84.6 | 64.6 | 63.5 | 33.6 | 82 | 82.4 |
| GoPro HB-Series AEWAL-001 Compare | 53.7 | 100 | 98.7 | 13.9 | 46 | 100 | 90.8 | 33.6 | 83.9 | 82.4 |
