# C1 PRO X3
# Overview
Lightweight and compact USB powered, self sufficient 3.4~10mm motorized zoom lens camera kit for day/night operation.
- Board level camera [C1 PRO camera](https://www.kurokesu.com/shop/cameras/CAMERA_C1_PRO) with USB MINI connector
- Controller SCF4-L050 (featuring [SCF4-M](https://wiki.kurokesu.com/books/scf4) module)
[](https://wiki.kurokesu.com/uploads/images/gallery/2020-12/Kurokesu_lenses_1_C1_PRO_x3.jpg)# Lens specifications
#### Optics
Image sensor | 1/2.7" Effective image area > 6.8mm |
Focal distance | 3.4±5% ~ 10±5%mm |
Aperture | f/1.7~f/3.0 |
Focus range | - WIDE: 1.0m - infinity
- TELE: 1.0m - infinity
|
Field of view (D=6.6mm)
| - WIDE: 129.2°
- TELE: 37.6°
|
Relative contrast
| - WIDE: >-14%
- TELE: >-1.7%
|
Distortion
| - WIDE: -9.2%
- TELE: 3.2%
|
#### Mechanics
Mechanical back focus | -0.35 (in glass t=0.4 BK7) |
Lens zoom structure | The stepper motor is directly connected to the screw |
Lens focusing structure | The stepper motor is directly connected to the screw |
Lens size | - Length: 59.6mm
- Width: 33.7m
- Height: 38.7mm
- Front end diameter: 34.8mm
|
#### Motor specifications
Screw pitch | 0.4mm |
Spiral rotation direction | Right |
Rated voltage | 4.5-5.0 VDC |
Coil resistance | 55Ω ± 10% |
Phase count | 2 |
Step angle | 18° / step |
Max start frequency | 800 PPS/min @ at 5.0 VDC |
Max operating frequency | 1200 PPS/min @ 5.0 VDC |
Pull torque | 2.8 gf-cm min (at 480 PPS @ 5.0 VDC) |
Push torque
| 3.8 gf-cm min (at 480 PPS @ 5.0 VDC) |
Operating temperature range | -10°C ~ +70°C |
#### Position alignment sensor PI
Model number | RPI-222 / ROHM |
#### IR switch
Coil resistance | 25 ± 5Ω |
Operation voltage | 4.5V
|
Current consumption | 144~200mA
|
Switching time | 200-500ms
|
Filters | - Clear glass
- 420 ~600nm Tavg >95%
|
#### Zoom-Focus curve diagram
[](https://wiki.kurokesu.com/uploads/images/gallery/2020-12/focus_x3.png)# Pinout
### Pinout
Lens signals routed by 24 pin 0.5mm pitch FFC cable. Contacts facing top. Recommended connector [Wurth Electronics 687124183622](https://www.we-online.com/en/components/products/FPC_0_5_SMT_ZIF_HORIZONTAL_TOP_CONTACT_LOW_PROFILE_6871XX183622?sq=687124183622#687124183622)
[](https://wiki.kurokesu.com/uploads/images/gallery/2023-11/image-1699385561806.png)
**Nr** | **Function** |
1 | ZOOM Anode, Collector |
2 | ZOOM Cathode |
3 | ZOOM Emitter |
4 | |
5 | |
6 | |
7 | |
8 | |
9 | |
10 | |
11 | |
12 | FOCUS Cathode |
13 | FOCUS Emitter |
14 | FOCUS Anode, Collector |
15 | IR-cut - |
16 | IR-cut + |
17 | FOCUS A- |
18 | FOCUS A+ |
19 | FOCUS B- |
20 | FOCUS B+ |
21 | ZOOM A- |
22 | ZOOM A+ |
23 | ZOOM B- |
24 | ZOOM B+ |
# Dimensions
#### Lens dimensions
Length | 50.2mm |
Width | 28mm |
Height | 34.75mm |
#### Camera drawing
[](https://wiki.kurokesu.com/uploads/images/gallery/2020-12/SCF4-L054_C1PRO.png)
#### 3D models
3D models can be downloaded from [GitHub](https://github.com/Kurokesu/3d_models)
# Control software
SCF4-SDK comes with open-sourced command line and GUI sample programs for rapid controller evaluation. A simple control software example is provided for testing and demonstration. Software is given "as is" to help with getting started and testing.
**More details and control explanation in [SCF4 documentation](https://wiki.kurokesu.com/books/scf4/page/demonstration-software).** Source code is maintained on [GitHub](https://github.com/Kurokesu/SCF4-SDK)
[](https://wiki.kurokesu.com/uploads/images/gallery/2020-08/5uXscf4-m_gui_demo.png)