IntroductionIf you're designing something that needs to see into tight spaces—a medical scope, an industrial inspection tool, or even a DIY gadget—size is everything. The camera module has to fit through whatever opening you have. Too big, and it won't go where it needs to. Too small, and you might
What is an Endoscope Camera Module? A Complete Technical OverviewIn the fields of modern medicine and industrial maintenance, the ability to see into inaccessible spaces is not just a convenience—it is a necessity. At the heart of this capability lies a remarkably sophisticated piece of technology:
1. Introduction: When High-Definition Imaging Meets Confined SpacesIn the intersection of minimally invasive medical procedures and industrial precision inspection, a common technical challenge increasingly arises: how to obtain sufficiently clear, smooth, and realistic visual information within a c
IntroductionIf you're buying an endoscope—for medical use, industrial inspection, or DIY projects—you'll probably wonder about resolution. How clear will the image be? Can you see small details? The answer depends on what you're using it for. Resolution standards have come a long way, from basic sta
IntroductionAn endoscope camera module is the tiny camera that lets doctors see inside your body or inspectors look inside machinery. At the core of most modern endoscopes is a CMOS image sensor. CMOS technology has made these cameras smaller, cheaper, and more efficient. This article explains what
1. Introduction: When Detection Space Meets Device Volume ConstraintsIn the development of automated inspection equipment, specialized robots, and portable instruments, imaging system selection faces a fundamental contradiction: the target is deep inside narrow cavities, while control equipment is b
In the field of minimally invasive surgery, the "eye" of the instrument—the endoscope camera—is perhaps the most critical component. It must be small enough to navigate the human body's delicate pathways, yet powerful enough to provide surgeons with crystal-clear, lag-free imagery.At the heart of th
If you are sourcing imaging components or developing a vision-based product, you have likely come across two terms: endoscope and camera module. They are closely related, but they are not the same thing. Mixing them up can lead to the wrong purchasing decision or unnecessary development work.This ar
In both modern medicine and high-end industrial maintenance, the ability to see into inaccessible spaces is critical. Whether a surgeon is performing a minimally invasive procedure or an aerospace engineer is inspecting a turbine blade, the primary tool at work is the endoscope.At the heart of these
IntroductionIn industrial nondestructive testing, medical device development, and embedded vision systems, a recurring challenge arises when the target lies on the sidewall of a pipe or within narrow cavities, particularly at millimeter-scale diameters. Traditional forward-view endoscopes fail in su
IntroductionAn endoscope camera module is the small imaging system inside every borescope or medical scope. It lets you see into tight spaces—inside engines, behind walls, or inside the human body. Despite its tiny size, this module contains several precision parts that work together to capture and
IntroductionA USB endoscope camera module is a small camera designed to look into tight spaces. Plumbers use them to check inside pipes. Mechanics use them to inspect engines without taking things apart. Homeowners use them to see inside walls. If you need to see somewhere you can't physically fit y
OV9734 Sensor 3.6mm Micro HD Endoscope Camera Module: Engineering Guide for Confined-Space Vision SystemsIntroductionIn the realm of industrial inspection, precision equipment maintenance, and embedded vision systems, the ability to visualize the interior of narrow structures often determines the su
Technical Logic and System Integration Considerations for Selecting 8mm 2MP Endoscope ModulesIn the practice of medical endoscope equipment development and industrial inspection system integration, the selection of imaging modules often faces a set of coupled engineering constraints: physical dimens
In the imaging technology spectrum of medical endoscopes and industrial inspection equipment, the evolution of product specifications has always followed two parallel development paths: one continuously ascends toward higher resolution, wider dynamic range, and greater intelligence in the high-end m
Technical Selection and System Adaptation Considerations for 2MP HD UVC Camera ModulesIn the development practices of consumer electronics peripherals, industrial vision terminals, and open-source hardware projects, the selection of imaging modules often faces a set of interrelated engineering const
In the industrial landscape of vision imaging technology, products at different resolution levels occupy distinct ecological niches. While market attention increasingly gravitates toward frontier areas such as tens-of-megapixel sensors, multi-camera fusion, and computational photography, 2MP (1080P)
In applications such as industrial nondestructive testing, precision equipment maintenance, and medical diagnostics, selecting an imaging system often involves balancing a set of interdependent engineering constraints: the physical diameter of inspection channels restricts the module’s front-end siz
In the evolution of endoscopic imaging technology, the continual reduction of sensor size and module diameter has consistently been a key driver of industry innovation. The 4.5mm-diameter miniature USB endoscope module, centered on the BF2013 sensor, represents a critical node along this technologic
In the technological lineage of industrial inspection and medical辅助 imaging equipment, the evolution of endoscope modules has consistently followed a clear trajectory: continuously reducing front-end physical dimensions while maintaining or improving image quality, thereby expanding the boundaries o
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SF-A345
SINCEREFIRST
The 4.5mm BF3A03 Sensor AV Endoscope Camera Module is a cutting-edge compact imaging device engineered for small space detection across industrial, automotive, and medical fields. Developed by SINCEREFIRST, this module integrates a high-performance BF3A03 sensor with an intuitive AV interface, delivering reliable image transmission and accurate color reproduction. With a 0.3MP (640*480) effective pixel resolution, 20 FPS frame rate, and ≥38.7dB signal-to-noise ratio, it captures clear, detailed visuals even in low-light or confined environments. Its optimized design—featuring a 2-6cm effective focal length (EFL) and 20-60mm depth of field (DOF)—ensures flexibility for multi-distance observation, while the 60° field of view (FOV) balances close-up detail and overall scene coverage. Whether inspecting hidden pipeline corrosion, diagnosing engine issues, or supporting minimally invasive surgeries, this AV interface endoscope sets a new standard for portability and performance in precision detection.

Equipped with an EFL of 2cm-6cm ±2% and DOF of 20mm-60mm ±2%, the module adapts seamlessly to diverse observation needs. This flexibility eliminates frequent focusing, saving time during industrial inspections or medical procedures. For example, it can clearly capture both near-surface cracks in machinery and distant internal structures of pipelines, making it a versatile tool for multi-distance detection.
The 60° diagonal field of view strikes the perfect balance between local close-up clarity and overall environmental awareness. Unlike narrow-angle modules that miss contextual details, or ultra-wide-angle options prone to distortion, this compact endoscope camera ensures natural, undistorted images—critical for accurate fault diagnosis in industrial settings and precise lesion identification in medical applications.
With automatic white balance technology, the module guarantees accurate color reproduction under complex lighting conditions, from dim industrial basements to brightly lit operating rooms. Its operating temperature range of -10℃ to 50℃ enables reliable performance in extreme environments, such as cold storage pipelines or high-heat engine bays. This temperature-resistant endoscope thrives in harsh conditions where standard modules fail.
Parameter | Details |
Product Name | 4.5mm Endoscope Camera Module |
Sensor Model | BF3A03 |
Output Interface | AV Interface |
Effective Pixels | 640*480 (0.3MP) |
Frame Rate (FPS) | 20 FPS |
Effective Focal Length (EFL) | 2cm-6cm ±2% |
Depth of Field (DOF) | 20mm-60mm ±2% |
Field of View (FOV) | 60° (Diagonal) |
Aperture ([F.NO](F.NO)) | 1.0±0.05 |
Signal-to-Noise Ratio (S/N) | ≥38.7dB |
Operating Temperature | -10℃ to 50℃ |
Key Feature | Smallest Endoscope Camera Module |
Ideal for industrial pipe inspection and mechanical maintenance, the module navigates narrow pipelines, valves, and machine interiors to detect corrosion, cracks, or blockages. Its small 4.5mm diameter accesses tight spaces in manufacturing equipment, while clear imaging helps engineers identify hidden faults early, reducing downtime and repair costs.
In automotive repair, the module provides visual access to engine interiors, fuel systems, and undercarriage components. Mechanics can inspect hard-to-reach areas without disassembling major parts, diagnosing issues like fuel line leaks or engine valve wear with precision. The AV interface connects directly to monitors, enabling real-time observation for efficient troubleshooting.
For medical endoscope applications, the module supports minimally invasive surgeries and intracavitary lesion screening. Its biocompatible design and accurate color reproduction help healthcare professionals visualize internal tissues clearly, aiding in early diagnosis and targeted treatment. The compact size minimizes patient discomfort during procedures.
Its ultra-compact 4.5mm diameter, combined with a 2-6cm focal length and 60° FOV, allows easy access to confined areas like narrow pipelines or engine crevices. The BF3A03 sensor delivers sharp images even in tight spaces, making it the go-to choice for small-space inspection tasks.
The AV interface enables simple, direct connection to monitors, TVs, or medical displays without complex adapters. It ensures stable, low-latency image transmission—critical for real-time industrial inspections and medical procedures where instant visual feedback is essential.
The 20-60mm DOF allows the module to keep both near and far objects in focus simultaneously, reducing the need for frequent adjustments. This is particularly valuable in endoscopic surgeries or mechanical inspections, where maintaining clear visibility of multiple structures improves efficiency and accuracy.
The 4.5mm BF3A03 Sensor AV Endoscope Camera Module is a cutting-edge compact imaging device engineered for small space detection across industrial, automotive, and medical fields. Developed by SINCEREFIRST, this module integrates a high-performance BF3A03 sensor with an intuitive AV interface, delivering reliable image transmission and accurate color reproduction. With a 0.3MP (640*480) effective pixel resolution, 20 FPS frame rate, and ≥38.7dB signal-to-noise ratio, it captures clear, detailed visuals even in low-light or confined environments. Its optimized design—featuring a 2-6cm effective focal length (EFL) and 20-60mm depth of field (DOF)—ensures flexibility for multi-distance observation, while the 60° field of view (FOV) balances close-up detail and overall scene coverage. Whether inspecting hidden pipeline corrosion, diagnosing engine issues, or supporting minimally invasive surgeries, this AV interface endoscope sets a new standard for portability and performance in precision detection.

Equipped with an EFL of 2cm-6cm ±2% and DOF of 20mm-60mm ±2%, the module adapts seamlessly to diverse observation needs. This flexibility eliminates frequent focusing, saving time during industrial inspections or medical procedures. For example, it can clearly capture both near-surface cracks in machinery and distant internal structures of pipelines, making it a versatile tool for multi-distance detection.
The 60° diagonal field of view strikes the perfect balance between local close-up clarity and overall environmental awareness. Unlike narrow-angle modules that miss contextual details, or ultra-wide-angle options prone to distortion, this compact endoscope camera ensures natural, undistorted images—critical for accurate fault diagnosis in industrial settings and precise lesion identification in medical applications.
With automatic white balance technology, the module guarantees accurate color reproduction under complex lighting conditions, from dim industrial basements to brightly lit operating rooms. Its operating temperature range of -10℃ to 50℃ enables reliable performance in extreme environments, such as cold storage pipelines or high-heat engine bays. This temperature-resistant endoscope thrives in harsh conditions where standard modules fail.
Parameter | Details |
Product Name | 4.5mm Endoscope Camera Module |
Sensor Model | BF3A03 |
Output Interface | AV Interface |
Effective Pixels | 640*480 (0.3MP) |
Frame Rate (FPS) | 20 FPS |
Effective Focal Length (EFL) | 2cm-6cm ±2% |
Depth of Field (DOF) | 20mm-60mm ±2% |
Field of View (FOV) | 60° (Diagonal) |
Aperture ([F.NO](F.NO)) | 1.0±0.05 |
Signal-to-Noise Ratio (S/N) | ≥38.7dB |
Operating Temperature | -10℃ to 50℃ |
Key Feature | Smallest Endoscope Camera Module |
Ideal for industrial pipe inspection and mechanical maintenance, the module navigates narrow pipelines, valves, and machine interiors to detect corrosion, cracks, or blockages. Its small 4.5mm diameter accesses tight spaces in manufacturing equipment, while clear imaging helps engineers identify hidden faults early, reducing downtime and repair costs.
In automotive repair, the module provides visual access to engine interiors, fuel systems, and undercarriage components. Mechanics can inspect hard-to-reach areas without disassembling major parts, diagnosing issues like fuel line leaks or engine valve wear with precision. The AV interface connects directly to monitors, enabling real-time observation for efficient troubleshooting.
For medical endoscope applications, the module supports minimally invasive surgeries and intracavitary lesion screening. Its biocompatible design and accurate color reproduction help healthcare professionals visualize internal tissues clearly, aiding in early diagnosis and targeted treatment. The compact size minimizes patient discomfort during procedures.
Its ultra-compact 4.5mm diameter, combined with a 2-6cm focal length and 60° FOV, allows easy access to confined areas like narrow pipelines or engine crevices. The BF3A03 sensor delivers sharp images even in tight spaces, making it the go-to choice for small-space inspection tasks.
The AV interface enables simple, direct connection to monitors, TVs, or medical displays without complex adapters. It ensures stable, low-latency image transmission—critical for real-time industrial inspections and medical procedures where instant visual feedback is essential.
The 20-60mm DOF allows the module to keep both near and far objects in focus simultaneously, reducing the need for frequent adjustments. This is particularly valuable in endoscopic surgeries or mechanical inspections, where maintaining clear visibility of multiple structures improves efficiency and accuracy.
