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L3CMOS Series

Product Introduction

The L3CMOS series features C-mount USB3.0 microscopy cameras equipped with Aptina (onsemi) high-sensitivity CMOS sensors and onboard buffer architecture. Under 5 Gbit/s USB3.0 bandwidth, these cameras achieve more stable high frame rate transmission while reducing frame loss and jitter caused by burst data. Resolution coverage spans approximately 2.2–12 MP, suitable for educational, routine scientific research, and general microscopy documentation applications.

The built-in Ultra-Fine color processing engine performs demosaicing, auto exposure/gain control, one-click white balance, and color/gamma/contrast processing on the camera side, reducing host CPU usage while delivering natural and consistent color presentation. The housing features metal (aluminum alloy) CNC precision construction for durability and reliability, while included ToupView/ToupLite software and cross-platform SDK support (Windows/Linux/macOS/Android) facilitate system integration and secondary development.

Product Features

  • Sensor: Aptina (onsemi) high-performance CMOS sensors (model dependent) with high sensitivity and low noise
  • Resolution range: approximately 2.2–14 MP, covering common microscopy documentation requirements
  • Data interface: USB3.0 (5 Gbit/s) high-speed link for smoother real-time preview and acquisition
  • Onboard buffer design adjacent to sensor: improves transmission stability and data integrity at high frame rates
  • Ultra-Fine color engine: Demosaic, AE/AGC, AWB/one-click white balance, color correction, gamma, brightness/contrast/saturation, LUT
  • Bit depth and data: supports 8/12-bit (model dependent) with RAW/Bayer output capability
  • Image functions: arbitrary ROI/windowing with digital binning support (2×2/3×3/4×4, model dependent) and image flipping
  • Lens interface: Standard C-mount interface compatible with various microscopy/industrial optical systems
  • Construction and power: Aluminum alloy CNC housing with USB bus power for simplified cabling and easy deployment (model dependent)
  • Software and ecosystem: includes ToupView/ToupLite; provides Windows/Linux/macOS/Android SDK (compatible with DirectShow/TWAIN)
  • Typical applications: brightfield/darkfield/low-light microscopy, educational demonstrations and documentation, material/biological sample routine observation
Get Quote Product Manual

Product Models

L3CMOS | C-mount USB3.0 | Onboard Buffer Stable Transmission | Ultra-Fine Color Engine | 2.2–12 MP (Aptina/onsemi)

Model Sensor / Size Resolution Pixel Size Shutter Frame Rate Interface Color Action
L3CMOS14000KPA
MT9F002(C) 1/2" (7.35 mm) | 5.73mm × 4.60mm
14M (4096×3286) 1.4 µm × 1.4 µm Rolling Shutter
6.2 fps@4096×3286 20.8 fps@2048×1644 53.3 fps@1024×822
USB3.0 Color View Details
L3CMOS12000KPA
IMX577(C) 1/2" (7.59 mm) | 5.95mm × 4.71mm
12M (3840×3040) 1.55 µm × 1.55 µm Rolling Shutter
8.5 fps@3840×3040 49 fps@1920×1516 137 fps@960×758
USB3.0 Color View Details
L3CMOS10000KPA
IMX577(C) 1/2.5" (7.10 mm) | 5.68mm × 4.26mm
10M (3664×2748) 1.55 µm × 1.55 µm Rolling Shutter
8.5 fps@3664×2748 49 fps@1832×1374 137 fps@912×686
USB3.0 Color View Details
L3CMOS08500KPA
Special(C) 1/2.5" (6.50 mm) | 5.16mm × 3.95mm
8.5M (3328×2548) 1.55 µm × 1.55 µm Rolling Shutter
10 fps@3328×2548 56 fps@1664×1272
USB3.0 Color View Details
L3CMOS05100KPA
AR0521(C) 1/2.5" (7.13 mm) | 5.70mm × 4.28mm
5.1M (2592×1944) 2.2 µm × 2.2 µm Rolling Shutter
15.5 fps@2592×1944 49.5 fps@1296×972 97.5 fps@648×486
USB3.0 Color View Details
L3CMOS03100KPA
AR0330(C) 1/3" (5.63 mm) | 4.51mm × 3.37mm
3.1M (2048×1534) 2.2 µm × 2.2 µm Rolling Shutter
27.3 fps@2048×1534 53.3 fps@1024×770
USB3.0 Color View Details

Packing List #

Standard accessories and packing details for the L3CMOS large-pixel USB3.0 CMOS cameras

Standard contents
  1. Carton dimensions: L: 40 cm W: 36 cm H: 36 cm (16 pcs, approx. 12–17 kg/carton)
  2. Inner box dimensions: L: 16.4 cm W: 16.4 cm H: 9.6 cm (0.72–0.8 kg/box)
  3. L3CMOS camera body
  4. High-speed USB3.0 A-to-B gold-plated cable (2.0 m)
  5. CD (drivers and software, Ø12 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
Note: For items F and G, choose the adapter that matches your camera and microscope or telescope.
Standard list shown; refer to the included packing list for exact contents.

Product Dimensions #

Outline drawings for the L3CMOS large-pixel USB3.0 CMOS cameras

L3CMOS series outline dimensions
L3CMOS Series
Standard size Outline drawing
Outline dimensions for the L3CMOS series
Click an image to view full size

The L3CMOS series, developed by ToupTek Photonics, delivers ultra-high sensitivity and high-speed USB3.0 microscope imaging. Aptina CMOS sensors provide resolutions from 2.2 MP to 12 MP, paired with a standard C-mount and the USB3.0 data interface for real-time, high-resolution imaging. The solid CNC-machined aluminium body enhances durability and heat dissipation for stable long-term operation.

Key Features

High-performance Aptina sensor

High sensitivity, low noise, and wide dynamic range imaging

Large onboard buffer

Synchronous data transfer and stable high-frame-rate output

High-speed USB3.0 interface

5 Gbps bandwidth for fast, stable video streaming

Ultra-Fine color engine

Accurately reproduces color and reveals fine detail

Performance Highlights

Resolution options

2.2–12 MP

Selectable resolution
Frame rate performance

Up to 50 fps

Higher with ROI cropping
Pixel size

1.4–2.2 µm

Delivers fine detail and sensitivity
Exposure range

0.05–2000 ms

Precisely adjustable

In-Depth Product Overview

Ultra-sensitive Aptina CMOS sensors

Uses high-performance Aptina CMOS sensors to deliver very high sensitivity, low noise, and wide dynamic range. The advanced architecture maximizes photoelectric conversion efficiency for clear images even in very low light. Pixel sizes range from 1.4 µm to 2.2 µm to balance fine detail with excellent low-light sensitivity.

Large onboard buffer technology

Built-in large onboard buffer enables synchronous data transfer and stable high-frame-rate output. The buffer prevents frame loss or stutter during continuous high-speed capture, preserving data integrity. Even with heavy data loads, it maintains smooth live preview and reliable acquisition—ideal for long-duration observations of dynamic processes.

USB3.0 ultra-high-speed data transfer

Equipped with a high-speed USB3.0 interface providing up to 5 Gbps bandwidth for fast, stable real-time video transfer. Compared with USB2.0, speed improves more than 10×, fully unleashing the high-resolution sensor performance. Some models reach 50 fps at full resolution, and ROI cropping can deliver even higher frame rates for precise capture of fast dynamics.

Precise Ultra-Fine color engine

Advanced Ultra-Fine image processing reproduces vivid, accurate color while revealing fine detail. The engine improves contrast and clarity so delicate sample structures remain visible—ideal for pathology, materials analysis, and other color-critical applications.

Industrial-grade rugged construction

The CNC-milled aluminium housing delivers structural strength and efficient passive cooling with no moving parts—eliminating vibration and reducing noise. Consistent thermal management keeps the sensor within its optimal range for reliable long-term imaging, while the metal enclosure offers strong electromagnetic shielding.

Applications

Application examples of the L3CMOS series in microscope imaging

Application scenarios

Live-cell imaging
Live-cell imaging

Observe cell division and dynamics in real time
Fluorescent imaging
Fluorescent protein imaging

Highly sensitive detection of GFP/RFP and other fluorophores
Histology imaging
Histology imaging

High-resolution digitization of pathology slides
Materials analysis
Materials surface analysis

High-precision inspection of microstructures and defects
Semiconductor inspection
Semiconductor defect inspection

Automatic identification of wafer surface defects
Teaching and research
Teaching and research

Ideal configuration for university laboratories

Key Advantages of the L3CMOS Series

Ultra-high sensitivity

Powered by Aptina CMOS sensors

USB3.0 high speed

5 Gbps data throughput

Large buffer

Delivers stable high-frame-rate output

Accurate color reproduction

Ultra-Fine color engine

High frame rate

Up to 50 fps full-resolution imaging

Aluminium alloy body

CNC one-piece design

Cross-platform SDK

Rapid integration

Extensive model range

2.2–12 MP options