BUC3M42-420ME M42 Mount USB3.0 CMOS Microscope Camera (GSENSE400BSI Sensor, 4.2MP)
Introduction
The BUC3M42 series cameras have integrated a 12-bit ultra-fine hardware image signal processor video streaming engine (Ultra-FineTM HISPVP), through which can realize hardware demosaic adjustment, automatic exposure, gain adjustment, one-click white balance, image color adjustment, saturation adjustment, gamma correction, brightness adjustment, contrast adjustment, Bayer format image conversion to RAW data and finally output in 8/12bit. HISPVP transfers the traditional work that should be processed by the computer CPU to the camera hardware processing, it has greatly improved the transfer speed of the camera and reduces the CPU usage.
Using USB3.0 data transmission technology to achieve high-speed data transmission, video transmission is fast and stable.
Features
1. Adopted SONY Exmor or GSENSE Back-illuminated large scientific CMOS sensor, with M42x0.75 mount, USB3.0 CMOS digital camera;
2. Wide spectrum range, some models even have high response in the ultra-violet to infrared wavelength;
3. Real-time 8/12bit depth switch(depending on sensor), allow any ROI size;
4. Ultra-fineTM HISP VP and USB3.0 5 Gbps interface ensuring high frame rates(Up to 30 frames for 10MP resolution);
5. Ultra low noise and low power consumption by using column-parallel A/D conversion;
6. With hardware resolution from 4.2M to 10.3M;
7. Standard M42 mount and M42 to C-mount or F-mount;
8. CNC aluminum alloy housing;
9. With advanced video & image processing application ImageView;
10. Providing Windows/Linux/Mac OS multiple platforms SDK;
11. Native C/C++, C#/VB.Net, DirectShow, Twain.
Specification
Order Code | Sensor & Size(mm) | Pixel Size(μm) | G Sensitivity/ Dark Signal | FPS/Resolution | Binning | Exposure |
BUC3M42-420ME | 4.2M/GSENSE400BSI (M, UV, RS) | 11 x 11 | 3.25x108 (e-/((W/m2).s)) Peak QE 95.3% @560nm 345(e-/s/pix) | 37@2048 x2048 | 1x1 2x2 | 0.01ms~60s |
Order Code | Power Consumption(W) | Characteristic and Data Output Format | FPS/Resolution |
BUC3M42-420MB | 2.5~2.9 | Support 2D denoising, hardware Auto Level (Default is not supported. The power consumption is 2.9w after upgrading), RAW12 format | 22@2048 x2048(12bit) |
BUC3M42-420MC | 3.0 | High frame rate, RAW12 format | 44@2048 x2048(12bit) |
BUC3M42-420MD | 3.0 | High frame rate and high dynamic range, Combined HDR 16bit (High gain 12bit format and low gain 12bit format output, and is combined to 16bit with FPGA) | 44@2048 x2048(16bit) |
BUC3M42-420MB2 | TBD | MIPI D-PHY CSI-2 1Ch 4Lane (For HiSilicon and Road chip embedded system) | 22@2048 x2046(12bit) |


Spectral Response of GSENSE2020BSI Spectral Response of GSENSE400BSI
Other Specification for BUC3M42 Camera | |
Spectral Range | 200-1100nm (UV without IR-cut Filter) or 400-900nm |
White Balance | ROI White Balance/ Manual Temp Tint Adjustment/NA for Monochromatic Sensor |
Color Technique | Ultra-fineTM HISPVP /NA for Monochromatic Sensor |
Capture/Control API | Windows/Linux/macOS/Android Multiple Platform SDK(Native C/C++, C#/VB.NET, Python, Java, DirectShow, Twain, etc) |
Recording System | Still Picture and Movie |
Cooling System* | Natural |
Operating Environment | |
Operating Temperature (in Centigrade) | -10~ 50 |
Storage Temperature (in Centigrade) | -20~ 60 |
Operating Humidity | 30~80%RH |
Storage Humidity | 10~60%RH |
Power Supply | DC 5V over PC USB Port |
Software Environment | |
Operating System | Microsoft®Windows® XP / Vista / 7 / 8 /10 (32 & 64 bit) OSx(Mac OS X) Linux |
PC Requirements | CPU: Equal to Intel Core2 2.8GHz or Higher |
Memory: 2GB or More | |
USB Port: USB3.0 High-speed Port | |
Display: 17” or Larger | |
CD-ROM | |


Standard Camera Packing List | ||
A | Carton L:52cm W:32cm H:33cm (20pcs, 12~17Kg/ carton), not shown in the photo | |
B | Gift box L:15cm W:15cm H:10cm (0.58~0.6Kg/ box) | |
C | BUC3M42 series USB3.0 M42-mount CMOS camera | |
D | High-speed USB3.0 A male to B male gold-plated connectors cable /2.0m | |
E | CD (Driver & utilities software, Ø12cm), has been upgraded to USB flash drive | |
Optional Accessory | ||
F | M42x0.75mm-mount to C-mount converter (If C-mount adapter is used) | |
G | M42x0.75mm-mount to F-mount converter (If F-mount lens is used) | |
H | Phototube to M42x0.75 mount adapter (U-TV1.2XT2) for Olympus microscope | |
I | Phototube to M42x0.75 mount adapter (MQD42120 MBB42120) for Nikon microscope | |
J | Phototube to M42x0.75 mount adapter (P95-T2 4/ P95-C 1"1.0 x 3” 1.2x) for Zeiss Primo Star series, Zeiss Primo vert series microscope | |
K | Phototube to M42x0.75 mount adapter (11541510-120 HT2-1.2X) for Leica microscope | |
L | Phototube to M42x0.75 mount adapter (60N-T2 4/3"1.2x) for Zeiss Axio series microscope | |
Note: For 4/3” sensor, 1.2X adapter with M42x0.75 mount should be chosen, for the 1.2” sensor, 1.0X adapter with C-mount could be used to get the better FOV; | ||
M | Calibration kit | 106011/TS-M1(X=0.01mm/100Div.); |