DZ756U series all-in-one zoom monocular USB digital microscope is shown in Figure. It has a continuous zoom lens “DZ756-W100-V050” including 8x continuous zoom lens with zoom objective 0.7x-5.6x, with auxiliary objective 1x and 0.5x TV lens, and with built-in USB camera module with different resolution and LED ring light source DRL-NPC.
The USB camera module can directly complete the video and image acquisition with a computer, and the LED ring light source module is directly connected to the USB camera module through the main body of the optical continuous zoom lens with no need of the external power supply.
DZ756U series meets the digital imaging observation, inspection and measurement in the fields of modern electronic equipment, semiconductor, laser, led, LCD, industrial on-line detection and biology.
The current models of DZ756U series all-in-one zoom monocular USB digital microscope are shown in the table below:
The Main Zoom body
LED Direct Ring Light with NPC (DRL-NPC) LED Direct Ring Polarization Light with NPC (DRPL-NPC) Coaxial Light Module with NPC (CL-NPC)
The Specifications of DZ756U Main Zoom Body, order code DZ756-W100-V050
DZ756-W100-V050 zoom lens，0.7X-5.6X zoom range
37.5mm-160mm (Determined by the auxiliary objective)
0.018-0.092（With W100，1x auxiliary objective）
18.6um-3.65um（With W100，1x auxiliary objective）
Other Optional Objective
Infinite microscope objective (Both biological microscope objective and metallographic microscope objective can be used)
188mm x 52mm
The Optional Objectives Wxxx for DZ756-Wxxx-V050
TV Lens TV050 for 1/3″ Sensor
When using coaxial lighting, low magnification may produce vignetting. When using infinity objectives as Auxiliary Lens Module (adapter available), the PMAG、FOV and NA of the DZ756 depends on the parameters of the objectives.
WD: Working Distance; NA: Numerical Aperture; PMAG: Primary Magnification; FOV: Field of View in the object side;
Note: Infinity corrected objectives limit system’s usable zoom range due to uneven illumination. The maximum sensor format is 2/3″.
The specifications of integrated USB Digital Camera Modular
Sensor & Size(mm)
G Sensitivity Dark Signal
8.3M/IMX415(C) 1/2.8″ (5.57×3.13)
300mV 70dB 44dB
30@3840×2160 30@1920×1080 30@1280×720 30@960×540
1×1 1×1 1×1 1×1
505mV 73dB 43dB
26@2592×1944 26@1280×960 26@640×480
1×1 1×1 1×1
380-650nm (with IR-cut Filter)
Auto/ROI/Manual White Balance (New Model), Auto (Products before 2020)
Ultra-Fine Color Engine/NA for Monochromatic Sensor