Big Mike's SLY500 500mm
Big Mike's
37 综合评分
vs
Pentax Limited Series 23010 40mm
Pentax
77 综合评分
买家怎么说
Big Mike's SLY500 500mm
62 满分 100 置信度低 8 条评价
这款廉价长焦镜头收到了褒贬不一的评价。许多用户称赞其性价比，指出对于偶尔使用（如拍摄月亮）来说，对焦清晰，画质尚可。然而，几位经过验证的买家报告了对焦偏软、灰尘污染和做工质量差的问题，尤其是在使用2倍增距镜时。它最适合那些有现实期望并愿意使用三脚架和手动对焦的用户。
优点
- 性价比极高
- 偶尔使用对焦清晰
- 三脚架上画质尚可
- 适合拍摄月亮和日食
- 适配器和转换器加工牢固
缺点
- 部分产品对焦偏软
- 2倍增距镜导致灰尘污染
- 需要大量光线（最大光圈f/8）
- 无防抖功能
- 适配器缺少后盖
Value for money 5
Image quality 6
Focus performance 4
Build quality 4
Light requirements 3
Dust contamination 2
Pentax Limited Series 23010 40mm
82 满分 100 置信度中 24 条评价
宾得HD DA 20-40mm f/2.8-4 ED Limited DC WR镜头因其出色的做工质量、锐度和美丽的色彩还原而备受赞誉。用户喜欢它作为街拍和风景摄影的多功能挂机镜头，尤其是在K-3等APS-C机身上。主要缺点是可变光圈和许多人认为相对于套机镜头的性能提升而言价格过高。
优点
- 出色的做工质量
- 优秀的锐度
- 美丽的色彩还原
- 防尘防滴
- 适合街拍和风景的多功能焦段
缺点
- 可变光圈 (f/2.8-4)
- 性能提升价格过高
- 变焦范围有限
- 不如某些套机镜头广角
Build quality 8
Sharpness 7
Color rendition 5
Value for money 4
Weather resistance 3
Variable aperture 3
评分
Budget
Street
Travel
Portrait
Macro
Professional
Landscape
Video Cinema
Wildlife Sports
规格
| Big Mike's SLY500 500mm | Pentax Limited Series 23010 40mm | |
|---|---|---|
| Optics | ||
| Type | telephoto | zoom |
| Focal Length Min | 500 mm | 20 mm |
| Focal Length Max | 1000 mm | 40 mm |
| Elements | — | 9 |
| Groups | — | 8 |
| Aspherical Elements | — | 1★ |
| ED Elements | — | 1★ |
| Coating | multi-coated | HD coating |
| Aperture | ||
| Max Aperture | f/8 | f/4 |
| Min Aperture | f/8 | 2.8-4 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | — | 9★ |
| Build | ||
| Mount | T Mount | Pentax K |
| Format | — | APS-C★ |
| Weather Sealed | — | ✓★ |
| Weight | 1.16 kg | 0.28 kg★ |
| Filter Thread | 67 mm | 55 mm |
| AF & Stabilization | ||
| AF Type | manual focus only | DC |
| Stabilization | ✓★ | ✗ |
| Focus | ||
| Min Focus Distance | 500 mm | 280 mm★ |
| Max Magnification | — | 1:5★ |
优缺点
Big Mike's SLY500 500mm
- Strong stabilization (81st percentile)81st %ile
- Strong versatility (72nd percentile)
- Below average user sentiment (6th percentile)6th %ile
- Below average af (14th percentile)14th %ile
- Below average build (15th percentile)15th %ile
Pentax Limited Series 23010 40mm
- Strong build (86th percentile)86th %ile
- Strong social proof (86th percentile)86th %ile
- Strong bokeh (81st percentile)81st %ile
- Strong macro (74th percentile)
结论
胜出: Pentax Limited Series 23010 40mm
Scores 77 overall, wins 9 of 9 usage categories and 8 of 21 specs.