SPECIFICATIONS
| Model | RT-A-5018MT |
| Focal Length | 50 mm |
| Image Circle | 43.0 mm |
| Optical Format | 35mm Full Frame |
| Working Distance Range | 400 mm – infinity |
| F-number Range | f/1.8 ~ f/22 |
| Back Focal Distance | 36.33 mm |
| Maximum Distortion | 0.25 % |
MECHANICAL
| Camera mount | M42x1 (T-Mount) |
| Filter Thread | M52 x 0.75 |
| Focus Control | Manual with locking screw |
| Aperture Control | Manual with locking screw |
| Lens Diameter | 60.0 mm |
| Lens Length | 39.04 mm |
| Lens Mass | 200 g |
