Lens Features
Telephoto Field of View
A long 50mm EFL for machine vision and telephoto applications.
Large Format
Suitable for large format sensors up to 2/3" such as IMX392 and IMX250
Optical and Mechanical Specification Table
| Lens Parameter | Performance Detail |
|---|---|
| Part Number | CIL051 |
| Format Type | 2/3" |
| EFL | 50mm |
| F# | 2.8 Fixed |
| Resolution | 12MP, 1.85μm |
| Field of View | 9° @ 7.5mm
Calculate for your sensor using our M12 Lens Calculator |
| Image Circle | 8.8mm |
| Distortion | 0.1% TV @7.5mm |
| Weight | 18g |
| IR Cut-Off Filter | P/N With: CIL051-F2.8-M12A650
P/N Without: CIL051-F2.8-M12ANIR |
| Construction | All-glass all-metal |
Mechanical Variants
| Variant | Description |
|---|---|
| "M12A" | No Ingress Protection, BBAR on Lens 1 Surface 1, AL6061 Cap+Barrel |
| "M12C" | IP67, BBAR on Lens 1 Surface 1, AL6061 Cap+Barrel |
Mechanical Layout

Camera Mechanical Compatibility Table*
| Camera/Mount | Compatibility |
|---|---|
| CLA024 | |
| 10mm-15mm tall mount | |
| Yes | |
| Yes | |
| Rev1.1: Yes, Rev1.2: Yes | |
| Yes | |
| Contact D3 Engineering | Yes |
*Mechanical compatibility only, assuming the standard M12x0.5 lens mount provided by the camera manufacturer. Please check optical compatibility separately.



