| XT-3A | XT-3B | XT-3C | ||
| 观察头 | 双目45º斜筒，瞳距55mm-75mm | ● | ● | ● |
| 目镜 | WF10X | ● | ● | ● |
| 物镜 | 2X 4X | ● | ● | ● |
| 1X 3X | ○ | ○ | ○ | |
| 调焦系统 | 粗调范围40mm | ● | ● | ● |
| 工作距离 | 工作距离57mm | ● | ● | ● |
| 载物台 | Φ60mm磨砂玻璃/黑白版 | ● | ● | |
| Φ90mm磨砂玻璃/黑白版 | ● | |||
| 照明 | 自然光 | ● | ||
| 上光源，12V/10W卤素灯 | ● | |||
| 上下光源，12V/10W卤素灯 | ● | |||
| 光源LED灯 | ○ | ○ | ||
| 产品单机尺寸 | 21x11x24cm | ● | ||
| 22x11.5x26cm | ● | |||
| 22x11.2x26cm | ● |
注：●为标准配置 ○为选购配置
