TECHSPEC C-series 3.5 mm Edmund Lenses

Technical Overview

The Edmund TECHSPEC C-series 3.5 mm is a high-resolution C-mount lens engineered for 1/1.8" industrial sensors. Delivering an 8.40 MP resolution, it is optimized for high-precision machine vision tasks. The lens features a wide-angle focal length of 3.5 mm with an ultra-wide horizontal angle of view of 102.4° and supports a minimal pixel pitch of 2.80 µm. Its robust C-mount design and versatile aperture range of F2 to F11 provide flexibility for diverse lighting environments.

Key Features

C-mount interface
8.40 MP high-resolution support
Compact TECHSPEC C-series design
Ultra-wide 102.4° horizontal angle of view
Adjustable aperture range F2 - F11

Technical Specification Matrix

Parameter	Value
Focal length	3.5 mm
Maximal image circle	1/1.8"
Aperture range (F)	2 - 11
Minimal pixel pitch	2.80 µm
Minimal object distance (M.O.D.)	0.00 m
Angle of view (H)	102.4°
Back focal length	18.31 mm
Maximal immersion depth	6.7 mm
Bildwinkel vertikal	82.3°
Optical class	1/1.8"
Resolution	8.40 MP
Item number	AE00213

Industrial Applications

1. Inline Automated Optical Inspection (AOI) for High-Density PCBs

Integration of machine vision into compact, low-clearance areas of Surface Mount Technology (SMT) machines to inspect printed circuit boards in real-time.

Problem Solved

Overcomes the limitation of tight vertical clearance in inline SMT manufacturing where traditional lenses cannot focus or capture a wide enough area at a minimal standoff distance, which typically forces slow, multi-pass scanning.

0.00 m Minimal object distance (M.O.D.)102.4° Angle of view (H)8.40 MP Resolution2.80 µm Minimal pixel pitch

2. Machine Vision Navigation for Autonomous Mobile Robots (AMRs)

Wide-angle environmental mapping and obstacle detection system mounted on factory-floor Automated Guided Vehicles (AGVs) operating in restrictive and variable lighting conditions.

Problem Solved

Resolves the issue of AMR blind spots and low-light navigation failures by capturing an ultra-wide field of view that can resolve fine details like small debris or floor fiducials without compromising light gathering.

3.5 mm Focal length102.4° Angle of view (H)Aperture range (F) 2 - 118.40 MP Resolution

3. Compact Benchtop In-Vitro Diagnostics (IVD) Microplate Imaging

Optical reading assembly inside compact medical benchtop analyzers used to instantly image multi-well microplates for colorimetric or fluorescent biomedical assays.

Problem Solved

Eliminates the need for bulky optical towers or complex moving X-Y camera gantries inside benchtop medical analyzers, allowing high-definition, full-plate imaging in extremely tight spatial constraints while leaving room for inline optical filters.

Maximal image circle 1/1.8"18.31 mm Back focal length0.00 m Minimal object distance (M.O.D.)8.40 MP Resolution