促销 12%
Pentax HD Pentax-D FA 50mm f/1.4 50mm
A deliberate optical design produces a distinctive rainbow flare effect at f/1.4 against strong backlight, while stopping down to f/4 eliminates all flare for crisp images. Its nostalgic, all-black exterior and full compatibility with vintage K-mount film and digital SLR bodies set it apart from modern lenses. This lens is best for portrait photographers seeking a unique, vintage rendering with an f/1.4 aperture and soft, natural bokeh from its eight-blade diaphragm.
Focal length 50mm
Aperture f/22
Mount Pentax K
Weather Sealed 是
Weight 910 g
af type Autofocus
lens type prime
44 综合评分
价格 US$187
概览
优缺点
优点
- Strong social proof (86th percentile) 86th
缺点
- Below average bokeh (19th percentile)
- Below average aperture (22nd percentile)
- Below average versatility (33rd percentile)
- Below average stabilization (34th percentile)
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。
用户口碑随时间保持稳定
基于 20 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
性能表现
规格参数
完整规格参数
Optics
| Type | Prime |
| Focal Length Min | 50 |
| Focal Length Max | 50 |
| Elements | 7 |
| Groups | 6 |
| Aspherical Elements | 1 |
| ED Elements | 1 |
| Coating | Multilayer HD Coating |
Aperture
| Max Aperture | f/22 |
| Min Aperture | f/1.4 |
| Constant | Yes |
| Diaphragm Blades | 8 |
Build
| Mount | Pentax K |
| Format | full-frame |
| Weather Sealed | Yes |
| Weight | 0.9 kg / 2.0 lbs |
| Filter Thread | 49 |
AF & Stabilization
| AF Type | Autofocus |
| Stabilization | No |
Focus
| Min Focus Distance | 450 |
| Max Magnification | 1:6.67 |
竞品对比
| Spec | Pentax HD Pentax-D FA 50mm f/1.4 50mm | Tamron Di III VC 28-300mm f/4-7.1 VXD | Sigma Contemporary 18-50mm f/2.8 DC DN | Nikon NIKKOR 20059 | Sony E 18-135mm f/3.5-5.6 OSS | Meike MIX Series 85mm F1.4 II |
|---|---|---|---|---|---|---|
| Focal Length | 50mm | 28-300mm | 18-50mm | 18-55mm | 18-135mm | 85mm |
| Max Aperture | f/22 | f/4 | f/2.8 | f/3.5 | f/3.5 | f/1.4 |
| Mount | Pentax K | Sony E | Sony E | Nikon F | Sony E | L-Mount |
| Stabilization | false | true | false | true | true | true |
| Weather Sealed | true | true | true | false | false | true |
| Weight (g) | 910 | 590 | 290 | 205 | 326 | 914 |
| AF Type | Autofocus | VXD linear motor | stepping motor | pulse stepping motor | Linear motor | STM |
| Lens Type | prime | zoom | zoom | zoom | zoom | telephoto |
| Compare | Compare | Compare | Compare | Compare |
| 产品 | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | 用户口碑 | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Pentax HD Pentax-D FA 50mm f/1.4 50mm | 53.9 | 19.3 | 40.8 | 58.4 | 49.6 | 21.6 | 33.1 | 85.9 | 34.3 |
| Tamron Di III VC 28-300mm f/4-7.1 VXD Compare | 97.7 | 82.5 | 62.4 | 83.1 | 96.3 | 70.5 | 97.9 | 50.9 | 79.2 |
| Sigma Contemporary 18-50mm f/2.8 DC DN Compare | 84.5 | 85.7 | 84.2 | 89.3 | 81.4 | 87.5 | 78.3 | 90.6 | 34.3 |
| Nikon NIKKOR 20059 Compare | 84.5 | 80.2 | 83.2 | 95.1 | 53.9 | 81.8 | 82.7 | 85.9 | 92.3 |
| Sony E 18-135mm f/3.5-5.6 OSS Compare | 97.7 | 80.2 | 70.5 | 36.6 | 77.7 | 81.8 | 95.8 | 90.6 | 79.2 |
| Meike MIX Series 85mm F1.4 II Compare | 84.5 | 98.4 | 40.7 | 91.9 | 50.9 | 97.4 | 33.1 | 76.6 | 79.2 |
价格
性价比分析
最低 US$187
Amazon 3 个报价 最低 US$187
Adorama 3 个报价 最低 US$367
B&H Photo 3 个报价 最低 US$367
Newegg 1 个报价 最低 US$1,297
Price History
New Kit Open Box / Refurbished
使用场景评分
完整评测即将发布。上方的规格、评分、价格和图表始终保持最新。
