3MP USB 3.0 CMOS Color Digital Microscope Eyepiece Camera + 2K Video Capture 53.3fps + Measurement, Calibration Function for Windows XP/Vista/7/8/10

Specifications
Packing List

Instruction Manual
DC2911 DC2912 DC2951 DC2991 Software Instruction Manual-English.pdf

Software Download
MIIImageViewSetup20240414.exe

Quick Overview
Stereo, Compound Compatible. Coupler Magnification: 0.5X. Dia. 23.2/30mm, Dia. 23.2/30.5mm. CMOS. Image Sensor Size: 1/3 in. 3.0 Megapixels. USB 3.0. C-Mount. 27.3fps@2048x1534, 53.3fps@1024x770. Camera Crosshairs: Grid. Measurement Function: Yes. Windows XP/Vista/7/8/10/11/OSX/Linux 2.6 and above. Native C/C++, C#, DirectShow, Twain Control API. For 23.2/30/30.5mm Eye Tube.

DC29111441 3M USB 3.0 CMOS Color Eyepiece Camera

Coupler/C-mount Adapter

0.5X Video Coupler
Coupler Mount Type for Eye Tube	Fastening Screw
Coupler Mount Size for Eye Tube	Dia. 23.2mm
Coupler for Microscope Type	Stereo, Compound Compatible
Coupler Magnification	0.5X
For Camera Sensor Size	Under 2/3 in.
C/CS-Mount Coupler	C-Mount
Surface Treatment	Electroplating Black
Material	Metal
Color	Black
Net Weight	0.12kg (0.26lbs)
Applied Field	For 23.2/30/30.5mm Eye Tube

USB Digital Camera

3M USB 3.0 CMOS Color Digital Camera
Image Sensor	CMOS
Image Sensor Size	1/3 in.
Image Sensor Diagonal size	6mm (0.236 in. )
Pixel Size	2.2x2.2μm
Camera Maximum Pixels	3.0 Megapixels
Camera Resolution	2048x1536
Camera Signal Output Port	USB 3.0
Camera Locking Screw Size	1/4-20 in.
Camera Lens Mount	C-Mount
Transmission Frame Rate	27.3fps@2048x1534, 53.3fps@1024x770
White Balance	Manual/Auto
Sensitivity	1.9V/lux-sec@550nm
Gain Control	Adjustable
Exposure Control	Manual/Auto
Camera Crosshairs	Grid
Line Color	User Defined
Capture Function	Yes
Image Capture Output Format	TIFF/JPG/BMP/PNG
Measurement Function	Yes
Video Output Format	WMV/H264/AVI
Language	English/French/German/Indonesian/Japanese/Polish/Russian/Simplified Chinese/traditional Chinese/Turkish
System Requirement	Windows XP/Vista/7/8/10/11/OSX/Linux 2.6 and above
Driver Installation	Driver free
API	Native C/C++, C#, DirectShow, Twain Control API
Camera Operation Temperature	-10~50°C (14~122°F)
Camera Operation Humidity	30-80%
Camera Housing Material	Metal
Camera Housing Size	68x68x45mm
Camera Housing Color	Black
Surface Treatment	Black Oxide Finish
Material	Metal
Color	Black
Net Weight	0.39kg (0.86lbs)
Calibration	Yes
Image Stitching	Yes

Camera Conversion Adapter

0.5X Video Coupler
Conversion Adapter Size	Dia. 23.2/30mm, Dia. 23.2/30.5mm

Technical Info

Instructions

Microscope CameraClose Λ

Microscope camera is also called camera, video-camera, industrial camera.
Camera is a device in which a microscope or lens converts an optically magnified image into an electrical signal and displays its image on a terminal display.
According to the difference of signal acquisition and output modes, camera can be divided into analog camera and digital camera; according to the difference of image sensor, camera can also be divided into CCD camera and CMOS camera.
For cameras used in microscopes, the most important requirement is to display images on the terminal display. Different cameras also have image acquisition, storage and processing functions.

Coupler/C-mount AdapterClose Λ

Coupler/C-mount adapter is an adapter commonly used for connection between the C-adapter camera (industrial camera) and a microscope.

Coupler for Microscope TypeClose Λ

Different coupler/C-mount-adapters are suitable for different microscopes. For some, some adapter accessories need to be replaced. See the applicable range of each coupler/C-mount-adapter for details.

Coupler MagnificationClose Λ

Coupler magnification refers to the line field magnification of the coupler/C-mount-adapter. With different magnifications of the adapter lens, images of different magnifications and fields of view can be obtained. The size of the image field of view is related to the sensor size and the coupler/C-mount-adapter magnification.

Camera image field of view (mm) = sensor diagonal / coupler/C-mount-adapter magnification.

For example: 1/2 inch sensor size, 0.5X coupler/C-mount-adapter coupler, field of view FOV (mm) = 8mm / 0.5 = 16mm.
The field of view number of the microscope 10X eyepiece is usually designed to be 18, 20, 22, 23mm, less than 1 inch (25.4mm). Since most commonly used camera sensor sizes are 1/3 and 1/2 inches, this makes the image field of view on the display always smaller than the field of view of the eyepiece for observation, and the visual perception becomes inconsistent when simultaneously viewed on both the eyepiece and the display. If it is changed to a 0.5X coupler/C-mount-adapter, the microscope image magnification is reduced by 1/2 and the field of view is doubled, then the image captured by the camera will be close to the range observed in the eyepiece.
Some adapters are designed without a lens, and their optical magnification is considered 1X.

For Camera Sensor SizeClose Λ

For the size of the lens field of view of the coupler/C-mount-adapter, in the design process, the size of the camera sensor imaging target should be considered. When the field of view of the lens is smaller than the target plane of the camera, “black border” and “dark corner” will appear.
The general microscope coupler/C-mount adapters are generally designed for the 1/2" camera targets. When a camera of 2/3 or larger target is used, the “dark corner” phenomenon will appear in the field of view. Especially, at present, DSLR cameras generally use large target plane design (1 inch full field of view), when used for microscopic photographing, the general DSLR camera coupler/C-mount adapter will have “black border”.
Generally, the “dark corner” that appears on the field of view is often that the center of the microscope and the camera are not aligned. Adjust the position of the screw on the camera adapter, or turn the camera adapter to adjust or change the effect.

C/CS-Mount CouplerClose Λ

At present, the coupler/C-mount adapter generally adopts the C/CS-Mount adapter to match with the industrial camera. For details, please refer to "Camera Lens Mount".

USB Digital CameraClose Λ

What the camera outputs are digital signals, which are output to the computer via the USB adapter.
There are two kinds of popular USB adapters popular on the market, namely USB2.0 and USB3.0. Both kinds of adapters need different data lines to work.

CMOSClose Λ

CMOS, or complementary metal oxide semiconductor.
Both CMOS and CCD sensors have their own respective advantages and disadvantages. As a kind of photoelectric conversion sensor, among the current cameras, CMOS is relatively more widely used.

Image Sensor SizeClose Λ

The size of the CCD and CMOS image sensors is the size of the photosensitive device. The larger the area of the photosensitive device, the larger the CCD/CMOS area; the more photons are captured, the better the photographic performance; the higher the signal-to-noise ratio, the larger the photosensitive area, and the better the imaging effect.
The size of the image sensor needs to match the size of the microscope's photographic eyepiece; otherwise, black borders or dark corners will appear within the field of view of observation.

Camera Maximum PixelsClose Λ

The pixel is determined by the number of photosensitive elements on the photoelectric sensor of the camera, and one photosensitive element corresponds to one pixel. Therefore, the more photosensitive elements, the larger the number of pixels; the better the imaging quality of the camera, and the higher the corresponding cost.
The pixel unit is one, for example, 1.3 million pixels means 1.3 million pixels points, expressed as 1.3MP (Megapixels).

Camera ResolutionClose Λ

Resolution of the camera refers to the number of pixels accommodated within unit area of the image sensor of the camera. Image resolution is not represented by area, but by the number of pixels accommodated within the unit length of the rectangular side. The unit of length is generally represented by inch.

Camera Signal Output PortClose Λ

Digital signals output: USB 2.0, USB3.0; 15 Pin VGA; Firewire Port; HDMI; VGA; Camera Link etc.
Analog signal output: BNC; RCA; Y-C etc.
In addition, some cameras store and output images in the form of a memory card. Usually, industrial cameras often have several output modes on one camera for convenience purposes.

Camera Lens MountClose Λ

Industrial camera adapters are usually available in three types:
1. C-Mount: 1" diameter with 32 threads per inch, flange back intercept 17.5mm.
2. CS-Mount: 1" diameter with 32 threads per inch, flange back intercept 12.5mm.
CS-Mount can be converted to a C-Mount through a 5mm spacer, C-mount industrial camera cannot use the CS-mount lens.
3. F-Mount: F-mount is the adapter standard of Nikon lens, also known as Nikon mouth, usually used on large-sized sensor cameras, the flange back intercept is 46.5mm.

Transmission Frame RateClose Λ

Frame rate is the number of output of frames per second, FPS or Hertz for short. The number of frames per second (fps) or frame rate represents the number of times the graphics process is updated per second.

Due to the physiological structure of the human eye, when the frame rate of the picture is higher than 16fps, it is considered to be coherent, and high frame rate can make the image frame more smooth and realistic. Some industrial inspection camera applications also require a much higher frame rate to meet certain specific needs.
The higher the resolution of the camera, the lower the frame rate. Therefore, this should be taken into consideration during their selection. When needing to take static or still images, you often need a large resolution. When needing to operate under the microscope, or shooting dynamic images, frame rate should be first considered. In order to solve this problem, the general industrial camera design is to display the maximum frame rate and relatively smaller resolution when viewing; when shooting, the maximum resolution should be used; and some cameras need to set in advance different shooting resolutions when taking pictures, so as to achieve the best results.

White BalanceClose Λ

White balance is an indicator that describes the precision of white color generated in the image when the three primary colors of red, green and blue are mixed, which accurately reflects the color condition of the subject. There are manual white balance and automatic white balance.
White balance of the camera is to "restore white objects to white color under any light source." The chromatic aberration phenomenon occurred under different light sources is compensated by enhancing the corresponding complementary color. Automatic white balance can generally be used, but under certain conditions if the hue is not ideal, options of other white balance may be selected.

Camera CrosshairsClose Λ

Camera crosshairs refers to the preset reference line within the camera, which is used to calibrate various positions on the display. The most commonly used is the crosshair, which is to determine the center position of the camera image, and it is very important in measurement. Some cameras also have multiple crosshairs that can be moved to quickly detect and calibrate the size of the object being viewed. Some crosshairs can also change color to adapt to different viewing backgrounds.

Camera Conversion AdapterClose Λ

For the model of microscopes of some manufacturers, when installing the camera and industrial camera, a convertible adapter is required to be installed on the trinocular head of the microscope.

PackagingClose Λ

After unpacking, carefully inspect the various random accessories and parts in the package to avoid omissions. In order to save space and ensure safety of components, some components will be placed outside the inner packaging box, so be careful of their inspection.
For special packaging, it is generally after opening the box, all packaging boxes, protective foam, plastic bags should be kept for a period of time. If there is a problem during the return period, you can return or exchange the original. After the return period (usually 10-30 days, according to the manufacturer’s Instruction of Terms of Service), these packaging boxes may be disposed of if there is no problem.

Optical Data

Camera Image Sensor Specifications
No.	Camera Image Sensor Size	Camera image Sensor Diagonal
No.	Camera Image Sensor Size	（mm）	（inch）
1	1/4 in.	4mm	0.157"
2	1/3 in.	6mm	0.236"
3	1/2.8 in.	6.592mm	0.260"
4	1/2.86 in.	6.592mm	0.260"
5	1/2.7 in.	6.718mm	0.264"
6	1/2.5 in.	7.182mm	0.283"
7	1/2.3 in.	7.7mm	0.303"
8	1/2.33 in.	7.7mm	0.303"
9	1/2 in.	8mm	0.315"
10	1/1.9 in.	8.933mm	0.352"
11	1/1.8 in.	8.933mm	0.352"
12	1/1.7 in.	9.5mm	0.374"
13	2/3 in.	11mm	0.433"
14	1/1.2 in.	12.778mm	0.503"
15	1 in.	16mm	0.629"
16	1/1.1 in.	17.475mm	0.688"

Digital Magnification Data Sheet
Image Sensor Size	Image Sensor Diagonal size	Monitor
		Screen Size (24in)
		Digital Zoom Function
1/3 in.	6mm	101.6
1. Digital Zoom Function= (Screen Size * 25.4) / Image Sensor Diagonal size

Contains

Parts Including

Picture	P/N	Product Name
	DC29111112	3M USB 3.0 CMOS Color Digital Camera
	CP29031301	0.5X Video Coupler

Packing
Packaging Type	Carton Packaging
Packaging Material	Corrugated Carton
Packaging Dimensions(1)	15x14.5x10cm (5.906x5.709x3.937″)
Packaging Dimensions(2)	7.5x4x11.5cm (2.953x1.575x4.528″)
Inner Packing Material	Plastic Bag
Ancillary Packaging Materials	Styrofoam
Gross Weight	0.83kg (1.83lbs)
Transportation Carton	Carton Packaging
Transportation Carton Material	Corrugated Carton
Transportation Carton Dimensions(1)	15x14.5x10cm (5.906x5.709x3.937″)
Transportation Carton Dimensions(2)	7.5x4x11.5cm (2.953x1.575x4.528″)
Total Gross Weight of Transportation(kilogram)	0.83
Total Gross Weight of Transportation(pound)	1.83