High-Magnification Digital Microscope

Gaopin GP-305-4K 4K Measuring Microscope. This High-Magnification Digital Microscope provides parfocal zoom from 47X to 307X, no refocusing required during magnification adjustment. Equipped with a 4K high-resolution camera and precision coaxial optical lens. The heavy base stand ensures stable operation, compatible with ring light for illumination. Built-in measurement software supports dimension measurement of length, radius, angle and other geometric features. It can capture photos and videos for sample archiving, ideal for fast visual inspection and precision measurement on production lines.

Technical Specifications

Difference from conventional body-mounted microscopes

Difference from ordinary microscopes: Most standard digital microscopes are non-parfocal and require refocusing after magnification change, which reduces working efficiency. This High-Magnification Electron Microscope adopts parfocal zoom optical design to maintain sharpness across the full 47–307X range. Integrated 4K measurement tool enables on-screen dimension annotation. Heavy anti-vibration base makes it more suitable for long continuous production inspection than common microscopes.

Product Applications

Application Scope: Suitable for defect inspection and dimension measurement of PCB, precision hardware, electronic components and small plastic parts. It detects burrs, scratches, hole diameters and pin pitch. Widely used in QC stations of 3C electronics and precision component industries.

Product Entity Overview

47-307 For which products is this detection range suitable?

1. PCB circuit board visual defect inspection: Observe copper foil open circuit, short circuit, cold solder joint, solder ball, scratch and solder mask damage. 47–307X balances wide field of view and tiny solder joint details.

2. Quality inspection for precision electronic components: Resistors, capacitors, diodes and chip pins. Detect pin oxidation, deformation, excess solder and package cracks.

3. Burr & crack inspection for small hardware parts: Micro stamping parts, turned parts, screws and springs. Check edge burrs, chipping, surface cracks and coating peeling.

4. Defect inspection for plastic injection parts: Precision plastic components and connector housings. Check sink marks, bubbles, material shortage, scratches and flash.

5. Sample observation & simple dimension measurement: Observe micro structure of samples. With measurement function, measure gap, line width and particle size.

6. Micro observation of cultural relics and materials: Fabric fibers, coatings and powder samples. Observe surface texture and particle morphology for teaching samples and preliminary material analysis.

OnSite Evidence & Reliability (Firsthand Testing)

1. Stable 4K Imaging

Sharp distortion-free images during long continuous operation, capture tiny defects for quality evidence.

2. Reliable Zoom & Focus

Quick refocus after zooming, no image drift for repeated comparison inspection.

3. Stable Multi-interface Output

Smooth HDMI & USB transmission, one-click photo/video. PC software supports measurement and traceable marking.

4. Vibration-resistant Stand

Heavy metal base reduces blur under minor workshop vibration, stable for long observation.

5. Consistent Lighting

Adjustable ring light delivers uniform illumination, clear surface details for electronic component inspection.

Unique Design Advantages

Parfocal Continuous Zoom Optical Lens

47–307× continuous zoom. Parfocal design keeps image sharp during magnification change without refocusing. Standard C-mount supports coaxial illumination for high reflective samples like wafer and metal surface.

Native 4K Imaging Module

Equipped with industrial sensor, native 4K resolution. HDMI and USB dual output, low latency and no motion blur. Direct preview on 4K monitor, capture photo/video and measure via PC.

Heavy-duty Stand & Precision Focus System

Cast iron base for vibration resistance. Stainless steel post with smooth gear fine focus, stable positioning. Modular design for quick replacement of ring light, coaxial light and polarizer.

Built-in On-screen Measurement

Embedded measurement function, measure length, radius, angle and area directly on monitor, min resolution 0.001mm. Crosshair overlay, image capture, video recording and annotation supported.

Daily Maintenance of the Electron Microscope

· Optical Lens Care: Only use professional optical lens tissue or microfiber dust-free cloth to wipe lens surfaces. Never use paper towels or rough cloth to prevent scratches on optical glass. For fingerprints and oil stains, apply a small amount of optical cleaner to the cloth. Do not drip liquid directly onto the lens. Avoid touching the lens coating.

· Camera & Body Maintenance: Clean the 4K camera, lens barrel and metal stand with dry dust-free soft cloth. Do not immerse the unit in liquid. Keep alcohol, acetone and other strong corrosive solvents away to protect paint and marking. Keep connectors dry to prevent oxidation and poor contact.

· Stage & Focus Mechanism: Remove dust from the black stage with dry cloth. Clean dust on focus knobs and column guide rails regularly. A small amount of dry grease can be applied. Liquid lubricants are forbidden, to prevent oil contamination on lenses and samples. Operate focusing gently, do not turn the knob forcibly to avoid gear damage.

· Power & Operating Environment: Use the original power adapter. Operate in dry, low-dust environment, away from high temperature, humidity and heavy vibration. Power off and unplug the adapter when the equipment will not be used for a long time

How to Choose a Model

1. Workpieces for Medium Magnification Inspection: Samples requiring 47×–307× magnification to observe tiny surface scratches, burrs and defects.

2. Opaque Solid Workpieces: Opaque workpieces such as metal, plastic and PCB boards for surface appearance defect inspection.

3. Precision Dimensional Measurement Required: Products that need micron-level measurement of length, angle and arc, with data collection and quality inspection record generation.

4. Medium & Small Precision Components: Electronic components, mold parts, precision hardware and other medium-small precision workpieces.

5. Image Archiving & Traceability Needed: Products requiring photo and video capture to save defect images for quality reports, process traceability and customer complaint evidence.

6. Customization: Supports neutral shipping

Authoritative Partners & Clients

GAOPIN microscopes are used by leading enterprises, research institutes, and universities. Our collaborative relationships include:

Huawei Electronics – Appearance and micro-defect inspection of electronic components

BYD Company Limited – Micro quality inspection of new energy vehicle components

Institute of Physical and Chemical Engineering of Nuclear Industry – Microscopic observation and physicochemical analysis of special materials

Zhejiang Maitong Intelligent Manufacturing Technology – Micro dimension and defect detection for precision machined parts

About GAOPIN

Kunshan Gaopin Precision Instrument Co., Ltd., founded in 2011, whose founder has accumulated industry expertise since 2005, is a tech-focused enterprise specialized in the design, R&D, sales and after-sales service of industrial microscopes. Boasting a core engineering team with more than ten years of professional know-how, the company guarantees proven technologies and consistent product reliability. GAOPIN offers more than one hundred optical product models and serves customers across the globe, dedicating itself to supplying tailor-made, cost-effective microscopy solutions. We offer prompt worldwide technical support covering online conferences, video-assisted operation guidance and remote training sessions. Our manufacturing base is located in Kunshan, Jiangsu Province, in close proximity to Shanghai. Both on-site factory inspections and virtual plant tours are available for clients. Feel free to get in touch with us for sample test images shot by this High-Magnification Digital Microscope, so you can evaluate its imaging performance directly.

Frequently Asked Questions

Q1: What product visual inspections is the standard light source of GP-305-4K microscope suitable for?

A1: The unit is equipped with a standard top ring light for surface defect inspection. It is widely used for electronic components, PCB boards, plastic housings and precision hardware parts to detect scratches, burrs, material shortage, deformation and other cosmetic defects.

Q2: What are the magnification range and parfocal zoom feature of this microscope?

A2: It delivers magnification from 47X to 307X with a parfocal zoom optical system. The focus stays consistent while changing magnification, removing repeated refocusing work. It simplifies batch inspection and speeds up production line quality control.

Q3: Does GP-305-4K support measurement and image recording?

A3: It adopts 4K high-definition imaging with 3840×2160 resolution. Matching software supports precise dimensional measurement. Photo and video capture are built-in to save sample images and measurement data for quality traceability and inspection archives.

Q4: What advantages does the base and stand bring for workshop operation?

A4: It features a heavy black metal base and single-column lifting stand. The heavy weight ensures strong vibration resistance. The focusing handwheel has balanced and smooth damping for fine lens adjustment, ideal for long continuous factory inspection.

Q5: Is a computer required to view samples with GP-305-4K microscope?

A5: No PC is needed for basic observation. Simply connect to a monitor for live view, photo capture and video recording. Advanced functions like software measurement and data export become available after connecting to a computer, fitting various workstation setups.