JSD2126-A1 15.40 mm 8MP M18 Lens for 1/1.2-Inch Sensors

Lens Specifications

EFL(mm)
f=15.40±5% mm
F/NO (max)
F/NO=2.80±5%
HFOV
26.0° (y=3.5629 mm)
Distortion
-0.42%
Element
1G4P+IR650
Thread
M18.00×P0.50
TTL (mm)
16.60±0.3 mm
Image Sensor
1/1.2" Sony IMX174

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15.40 mm 8MP Low-Distortion M18 Lens for 1/1.2-Inch Machine Vision Sensors · JSD Optics

Lens Features

Sub-Percent Distortion

TV distortion measures -0.42%, so straight edges stay straight toward the frame corners and edge detection keeps its accuracy.

Full 1/1.2-Inch Coverage

ø13.60 mm image circle covers the full 1/1.2-inch Sony IMX174 frame for 8MP modules, holding corner brightness above 76.36%.

Built-In IR650 Filter

Built-in IR650 filter passes at least 90% across 440-620 nm and blocks beyond 700 nm, keeping daylight colour accurate.

Optical and Mechanical Specification Table

ParameterSpecification

ModelJSD2126-A1
Resolution8MP
EFLf=15.40±5% mm
F/NOF/NO=2.80±5%
Max Image CircleØ13.60 mm
Element1G4P+IR650
Thread SizeM18.00×P0.50
IR Filter Spec (Built-in)Tavg>=90%@440~620nm; T=50%@650±10nm; Tavg<=3%@700~1000nm; T<5%@1050nm
Storage Temp.-30℃~+85℃
Operation Temp.-20℃~+70℃

Mechanical Dimensions Table

ParameterDimension

Thread SizeM18.00×P0.50
TTL16.60±0.3 mm
TFL15.03±0.2 mm
Max ODØ18.00±0.1 mm
Front ID (Object Side)Ø6.30 mm
BFL3.48±0.2 mm
FBL2.00±0.2 mm

Specifications for Sensors

ParameterSpecification

Sensor1/1.2" Sony IMX174
FOV-Vertical26.0° (y=3.5629 mm)
FOV-Horizontal40.5° (y=5.6725 mm)
FOV-Diagonal47.4° (y=6.6986 mm)
TV Distortion-0.42%
Relative Ill.>76.36%
CRA<18.20°

Mechanical Layout

2126.jpg
15.40 mm          Effective Focal Length
8MP          Sensor Resolution
1/1.2"          Sensor Format

Frequently Asked Questions

Will this lens fit a Sony IMX174 camera module, and which holder do I need?

It is specified for 1/1.2-inch sensors such as the Sony IMX174 and covers the full frame with a ø13.60 mm image circle. Because the thread is M18.00×P0.50, the module needs an M18 lens holder rather than the M12 holder used on smaller lens designs.

How much geometric error does the -0.42% TV distortion actually introduce?

TV distortion is measured at -0.42%, so straight lines bow by well under one percent of image height. That is small enough for edge detection, alignment and dimension gauging, but the design is low-distortion rather than perfectly rectilinear, so keep distortion calibration in your image pipeline.

How do I confirm that a 15.40 mm focal length gives the field of view my application needs?

Start from your sensor active area and required working distance. The stated values (26.0° vertical, 40.5° horizontal, 47.4° diagonal) are defined at specific image heights. Send the sensor model and target scene width, and the field of view can be confirmed before sampling.

Does the built-in IR650 filter allow 850 nm IR illumination for low-light imaging?

No. The filter transmits at least 90% between 440 and 620 nm and limits transmission to under 3% across 700-1000 nm, so this configuration is for visible-light imaging. If your application depends on NIR sensitivity, state it at the selection stage so the optical requirement is handled during development.

Can the thread, filter or focal length be changed for our camera module?

Standard units ship as specified. When no standard model fits, custom imaging lens development starts from your image sensor, resolution, field of view, working distance, distortion target and mechanical limits, then proceeds through optical design, prototype and production validation.

Can we evaluate a sample before design-in?

Yes. Evaluation samples of this standard model can be supplied for holder fit, focus setting and image-quality checks. Include the sensor model, holder thread and working distance range with the request so the sample configuration matches your module.

From Your Specs to a Proven Lens

We don't just sell lenses. We run a full optical verification cycle — on your sensor, under your constraints — before we recommend anything.

01

Your Project Brief

What we ask first
  • Sensor model (Sony / Onsemi / Omnivision)

  • Application type (machine vision / security / UAV)

  • Resolution & FOV (e.g. 8MP, 120°)

  • Working distance & FBL constraints

  • Mechanical envelope (length, diameter)

Don't have every number? Just share the sensor model — we'll pull its datasheet.
02

Verification Cycle

Two-stage optical check
Round 1 · Datasheet Screening
Existing libraryMatch against 170+ standard designs & custom archives
Initial shortlist2–3 candidates that meet basic optical specs
▾
Round 2 · Sensor‑Specific Simulation
MTFResolution at Nyquist frequency
CRAChief Ray Angle vs. sensor micro‑lens
DistortionTV / F‑Theta control
IlluminationRelative illumination & shading
▾
📄 Matching Report                Sent to you with all simulated data
03

Your Path Forward

Clear next steps based on the data
Standard Match

Existing lens fits your sensor perfectly.

Platform Modification

Based on an existing platform. Modify barrel, coating, or specific elements.

Full Custom Development

New optical design tailored to your sensor.

Every path ends with samples on your bench for real‑world validation.
1BriefShare specs & sensor
2ScreenExisting library match
3SimulateSensor‑level MTF/CRA
4RecommendStandard / modified / custom
5SampleShip to your lab

The JSD2126-A1 is a 15.40 mm fixed-focal imaging lens on an M18.00×P0.50 thread for 1/1.2-inch sensors and 8MP-class camera modules, characterized on the Sony IMX174. Its 47.4° diagonal field of view, 40.5° horizontally and 26.0° vertically, concentrates the sensor pixels on a narrow scene, so machine vision, inspection and embedded vision modules resolve detail at medium working distances.

The 1G4P stack pairs one glass and four plastic elements with a built-in IR650 filter: average transmission is at least 90% from 440 to 620 nm, 50% at 650 ± 10 nm and no more than 3% from 700 to 1000 nm, so daylight colour is corrected inside the barrel. Measured TV distortion is -0.42% and relative illumination stays above 76.36%, keeping straight edges straight toward the corners and threshold-based edge detection repeatable. Chief ray angle remains under 18.20°, and the F/2.80 aperture balances exposure against usable depth of field.

Mechanically the lens is 16.60 ± 0.3 mm TTL with 15.03 ± 0.2 mm TFL, ø18.00 ± 0.1 mm maximum outer diameter, ø6.30 mm front inner diameter, 3.48 ± 0.2 mm BFL and 2.00 ± 0.2 mm FBL, leaving room for the holder and sensor package. Operation from -20 to +70 °C and storage from -30 to +85 °C suit enclosed camera modules. Evaluation samples support holder-fit and image-quality testing, and custom variants start from your image sensor, field of view and mechanical envelope rather than from a catalogue number.

About JSD Optics

Design, development, and manufacturing of imaging lenses for camera module manufacturers.

JSD Optics — Founded in 2009, we are an imaging lens developer and manufacturer.            We design and produce standard and custom imaging lenses for camera module manufacturers across            machine vision, security, robotics, UAV, embedded vision, and action camera applications.
📊 Key Metrics
1,000 m²
🏢 Factory Area
~200
👥 Total Employees
17
📅 Years Experience
ISO 9001
🏅 + IATF 16949
🏭 Factory Capabilities

Our factory floor with dedicated production lines and precision optics assembly.

Factory line
  • ✅ Dedicated M12 / S‑Mount imaging lens production lines

  • ✅ High‑precision optical assembly & in‑line inspection

  • ✅ Supports resolutions from 5MP to 50MP

  • ✅ Sensor size compatibility: 1/3″ ~ 1/1.3″

⏱️ Monthly capacity 300k+ units
🔬 In‑house Laboratory

Optical testing lab with MTF, distortion, and environmental screening — IATF 16949 certified.

Lab
  • ✅ ISO 9001 & IATF 16949 quality management systems

  • ✅ 100% in‑process and outgoing optical inspection

  • ✅ MTF, distortion, chromatic aberration testing

  • ✅ Environmental stress screening (temp/humidity)

  • ✅ PPAP documentation & full traceability

🏅 IATF 16949                📄 PPAP support
⚙️ Custom Engineering

From sensor to lens — designed for your image sensor.

Custom design

Customers provide sensor, resolution, FOV, working distance — we deliver custom optical design, prototype, validation, and mass production.

  • ✅ Full optical design from scratch or modification

  • ✅ Sensor‑centric matching: Sony, Onsemi, Omnivision

  • ✅ Low distortion, wide‑angle, compact variants

  • ✅ 50+ custom solutions delivered

🤖 5MP – 50MP                📏 1/3″ – 1/1.3″
🗺️ Custom Development Workflow
💬Requirement
➡️
📐Optical Design
➡️
🧊Prototype
➡️
🧪Validation
➡️
🏭Mass Production

Need a Custom Optical Solution?

Explore our lens portfolio or speak with our engineering team about your project requirements.

Or email us at info@jsdoptical.com

Please send a product inquiry and we will address your concerns as soon as possible.