C3CMOS03500KPA image 1
C3CMOS03500KPA thumbnail 1

C3CMOS03500KPA Microscopy Cameras/Microscope Cameras

Product Introduction

The C3CMOS series represents compact C-mount USB3.0 microscopy cameras featuring Aptina (onsemi)/Sony high-sensitivity, low-noise CMOS image sensors designed for educational, research and general microscopy recording applications. Through 5 Gbit/s USB3.0 high-speed links, these cameras achieve stable high frame rate image/video output with resolution coverage spanning approximately 3.5–10 MP. The aluminum alloy CNC anodized housing provides durability and facilitates long-term deployment.

The built-in Ultra-Fine color processing engine completes demosaicing, auto exposure/gain, one-touch white balance, and color/gamma/contrast processing within the camera, delivering natural and consistent color reproduction while reducing host CPU utilization. Products include ToupView/ToupLite software and cross-platform SDK support (Windows/Linux/macOS/Android) for seamless system integration and secondary development.

Key Features

  • Sensors: Aptina (onsemi)/Sony high-performance CMOS (depending on model) with high sensitivity and low noise
  • Lens interface: C-mount standard interface compatible with various microscopy and industrial optical systems
  • Resolution range: Approximately 3.5–10 MP (depending on model) meeting general microscopy recording requirements
  • Data interface: USB3.0 (5 Gbit/s) high-speed transmission for stable preview and acquisition
  • Ultra-Fine color engine: Demosaic, AE/AGC, AWB, one-touch white balance, color/gamma/brightness/contrast, LUT
  • Bit depth support: 8/12-bit (depending on model) with RAW/Bayer output capability
  • Construction and reliability: Aluminum alloy CNC integrated housing for durability with enhanced heat dissipation and electromagnetic shielding
  • Software and ecosystem: Bundled ToupView/ToupLite with Windows/Linux/macOS/Android SDK, compatible with DirectShow/TWAIN
Get a Quote Download Datasheet

Product Details

Key Parameters
Model C3CMOS03500KPA
Sensor SC4236(C)
Effective Pixels / Resolution 3.5M (2304×1536)
Frame Rate (Full Resolution) 30 fps@2304×1536; 30 fps@1152×768
Shutter Type Rolling Shutter
Color Type Color
Imaging Performance
Pixel Size 2.5 µm × 2.5 µm
Sensor Size 5.76 mm × 3.84 mm
Diagonal 0.43" (6.92 mm)
Dynamic Range 72 dB
Bit Depth 8-bit
Sensitivity 3.0 V/lux·sec
Interface & Mechanical
Data Interface USB3.0
GPIO TBD
Lens Mount C-mount
Dimensions TBD
Weight 0.67~0.7 kg
Power Supply USB power
Environment & Certification
Operating Temperature / Humidity -10 °C ~ 50 °C / 30%~80%RH
Storage Temperature / Humidity -20 °C ~ 60 °C / 10%~60%RH
Operating System Windows/Linux/macOS/Android multi-platform SDK (native C/C++, C#/VB.NET, Python, Java, DirectShow, TWAIN, etc.)
Certification CE, FCC

Product Overview

C3CMOS03500KPA is a digital camera specifically designed for microscopic imaging applications, featuring a SC4236(C) high-performance image sensor with the following characteristics:

  • Exceptional Imaging Quality: 3.5M (2304×1536) resolution with 2.5 µm × 2.5 µm pixel size, sensor size of 5.76 mm × 3.84 mm , ensuring clear detail presentation
  • Imaging Characteristics: Features Rolling Shutter design, supports color imaging, suitable for brightfield, darkfield, phase contrast, fluorescence and other microscopy observation methods
  • High-Speed Data Transfer: Utilizes USB3.0 interface with maximum frame rate up to 30 fps@2304×1536; 30 fps@1152×768 , supporting real-time preview and rapid capture
  • Color Reproduction: 8-bit color depth with dynamic range reaching 72 dB , accurately reproducing sample colors
  • Sensitivity Performance: Excellent low-light performance with sensitivity of 3.0 V/lux·sec , suitable for low-light sample observation
  • Optical Compatibility: Standard C-mount interface, compatible with various microscope brands, optional 0.5×/0.63×/1× adapters available
  • Compact Design: Overall dimensions of only TBD , weighing 0.67~0.7 kg , powered by USB power , no additional power supply required
  • Software Support: Includes professional microscopy imaging software ToupView, supports Windows/Linux/macOS/Android multi-platform SDK (native C/C++, C#/VB.NET, Python, Java, DirectShow, TWAIN, etc.) systems, provides measurement, annotation, stitching, focus stacking and other functions, supports C/C++, C#, Python, ImageJ, μManager development environments

Core Performance Indicators

Resolution

3.5M (2304×1536)

Frame Rate

Up to 30 fps@2304×1536; 30 fps@1152×768

Pixel Size

2.5 µm × 2.5 µm

Data Interface

USB3.0

Microscopic Imaging Features

Professional Microscopy Applications

Optimized for biomedical, materials science, and industrial inspection microscopy needs, supports brightfield, darkfield, phase contrast, fluorescence and other observation methods

Excellent Color Reproduction

Precise color reproduction algorithms and white balance control ensure accurate and true sample colors, meeting professional needs such as pathological diagnosis

Measurement and Analysis Functions

Bundled software provides measurement tools for length, area, angle, etc., supports annotation and statistical analysis, meeting quantitative analysis requirements

Image Processing Capabilities

Supports real-time image enhancement, focus stacking, image stitching and other advanced functions, improving observation effects and imaging quality

Why Choose This Camera

The C3CMOS03500KPA microscopy camera, with its excellent imaging quality, convenient operation experience, and professional software support, is an ideal choice for microscope digital upgrades. Whether for biomedical research, material analysis, or industrial inspection, it provides clear, accurate, and reliable microscopic image recording and analysis solutions.

C3CMOS03500KPA Product Manual

PDF format, includes detailed technical specifications and dimensional structure

Download
SDK Development Kit

Supports Windows, Linux, macOS and other platforms

Get SDK
3D Model Files

STEP format, for mechanical design integration

Download 3D

Packing List #

Standard kit and packaging for the C3CMOS compact USB3.0 CMOS camera series

Standard Items
  1. Shipping carton: L 52 cm × W 32 cm × H 33 cm (16 pcs, 12–17 kg per carton)
  2. Inner box: L 15 cm × W 15 cm × H 10 cm (0.67–0.70 kg per box)
  3. C3CMOS series camera (1 pc)
  4. High-speed USB3.0 Type-A male to Type-B male gold-plated cable (2.0 m)
  5. Software CD (drivers and application suite, Ø 12 cm)
Optional Accessories
  1. Adjustable eyepiece adapters
    Dia. 23.2 mm eyepiece to C-mount: 108001/AMA037, 108002/AMA050, 108003/AMA075
    Dia. 31.75 mm eyepiece to C-mount: 108008/ATA037, 108009/ATA050, 108010/ATA075
  2. Fixed eyepiece adapters
    Dia. 23.2 mm eyepiece to C-mount: 108005/FMA037, 108006/FMA050, 108007/FMA075
    Dia. 31.75 mm eyepiece to C-mount: 108011/FTA037, 108012/FTA050, 108013/FTA075
  3. 108015 (Dia. 23.2 mm to 30.0 mm ring) – adapter ring for 30 mm eyepiece tubes
  4. 108016 (Dia. 23.2 mm to 30.5 mm ring) – adapter ring for 30.5 mm eyepiece tubes
  5. 108017 (Dia. 23.2 mm to 31.75 mm ring) – adapter ring for 31.75 mm eyepiece tubes
  6. Calibration reticles
    106011/TS-M1 (X = 0.01 mm / 100 divisions)
    106012/TS-M2 (X, Y = 0.01 mm / 100 divisions)
    106013/TS-M7 (X = 0.01 mm / 100 divisions; 0.10 mm / 100 divisions)
Note: For options F and G, please confirm whether you require microscope or telescope adapters. ToupTek engineers can recommend the appropriate C-mount adapter for your application.
This packing list is for reference; always check the packing slip shipped with the camera.

Product Dimensions #

Mechanical outline for C3CMOS compact USB3.0 CMOS cameras

C3CMOS series outline dimensions
C3CMOS Series
Standard size Outline drawing
29 × 29 × 30 mm compact design
Click an image to view the full-size drawing.

C3CMOS cameras are ToupTek’s compact high-performance microscopy cameras with a standard C-mount interface. Resolutions from 3.5 MP to 10 MP combine with a rugged metal housing to deliver a versatile imaging platform for scientific research, industrial inspection, and general microscopy tasks.

Key Features

High-Performance Sensors

Sony/onsemi CMOS sensors with back-illuminated options and high quantum efficiency.

USB 3.0 High-Speed Transfer

SuperSpeed interface delivers smooth, real-time preview with zero dropped frames.

Ultra-Fine Color Engine

Faithful color reproduction that captures subtle sample variations.

All-Metal Housing

CNC-machined aluminum alloy delivers durability and efficient heat dissipation.

Performance Highlights

Resolution Range

3.5–10 MP

Multiple sensor options
Frame Rate

30+ fps

At full resolution
Pixel Size

1.5–2.9 µm

Balance of sensitivity and detail
Data Depth

8 / 12 bit

Selectable dynamic range

In-Depth Technology Overview

High-Performance Sensor Architecture

Advanced Sony and onsemi CMOS sensors work with optimized circuitry to deliver excellent image quality and sensitivity. Selected models feature back-illuminated structures that boost quantum efficiency and signal-to-noise ratio, dramatically reducing read noise. They excel at capturing faint signals, making them ideal for fluorescence and other low-light microscopy applications.

USB 3.0 SuperSpeed Data Transfer

The USB 3.0 SuperSpeed interface leverages 5 Gbps bandwidth for fast, stable image transfer. Even at 10 MP full resolution the camera maintains smooth real-time preview without stutter or dropped frames. The high-throughput pipeline meets the demands of high-definition recording and live observation, especially during dynamic experiments.

Ultra-Fine Color Technology

ToupTek’s Ultra-Fine color engine combines advanced demosaicing, white balance, and color mapping to reproduce subtle color differences faithfully. When imaging histology slides, materials samples, and other color-critical specimens, the camera maintains natural hues that support dependable analysis and diagnostics.

Flexible ROI and Binning Modes

Custom regions of interest read only the pixels you need, substantially increasing effective frame rates. Multiple binning modes—such as 2×2 and 4×4—combine pixels to boost sensitivity, reduce noise, and further improve frame rates while preserving the field of view. This flexibility is ideal for low-light imaging and high-speed capture requirements.

Industrial-Grade Mechanical Design

The high-strength aluminum alloy enclosure is CNC machined for a compact yet robust body with excellent vibration and shock resistance. The metal chassis delivers outstanding heat dissipation to keep the sensor temperature stable over long sessions. An integrated IR-cut filter suppresses stray infrared light, and the design has no moving parts for long-term reliability.

Applications

Representative microscopy applications for the C3CMOS USB3.0 series.

Application Scenarios

Live-cell imaging with C3CMOS camera
Live-Cell Imaging

Monitor cell division and motility in real time for research and teaching.
Fluorescence imaging with C3CMOS camera
Fluorescent Protein Imaging

Detect GFP, RFP, and other fluorophores with high sensitivity.
Histology imaging with C3CMOS camera
Histology Imaging

Digitize pathology slides at high resolution for analysis and archiving.
Materials analysis with C3CMOS camera
Materials Surface Analysis

Inspect microstructures and surface defects with precision measurement.
Semiconductor inspection with C3CMOS camera
Semiconductor Defect Inspection

Automatically identify wafer and PCB surface defects during QA.
Teaching and research with C3CMOS camera
Teaching & Research

Provide digital microscopy capability for classrooms and training labs.

C3CMOS Series Advantages

High-Quality Sensors

Sony/onsemi CMOS sensor portfolio.

Standard C-Mount

Compatible with a wide range of microscopes.

USB 3.0 Transfer

High-speed streaming with zero stutter.

Accurate Color

Powered by the Ultra-Fine color engine.

Metal Housing

CNC-machined aluminum alloy construction.

Complete Software

Bundled software plus open SDK access.

Broad Model Range

Sensor resolutions from 3.5–10 MP.

Outstanding Value

Professional performance at an accessible price.