Click a thumbnail to switch views. Dimensional data is in the drawing below and in the datasheet.
2/3" FA Series
| Model | FA3505A |
|---|---|
| Product family | FA Lenses |
| Series | 2/3" FA Series |
| Sensor format | 2/3" |
| Focal length | 35mm |
| Aperture range | F1.6-F16 |
| Working distance | 150mm |
| Mount | C |
| TV distortion | <0.15% |
| Filter thread | M30.5x0.5 |
Free to download — no form, no sign-up. Includes full specifications and the dimensioned mechanical drawing. Measured MTF and distortion data is available on request.
Send your camera model, field of view and working distance — we reply with a selection proposal and test data within one business day.
Preview of the official FA3505A specification sheet — outer dimensions, flange-back, thread sizes and the complete parameter table.
The drawing below is the mechanical outline and specification table from the FA3505A datasheet — use it to check the mount, flange distance and lens envelope against your housing before you order. Per-model MTF and distortion data is issued with the full datasheet and can be supplied as a signed test report.
Dimensional drawing and specification table — FA3505A datasheet. Full-size PDF, 3D model and measured MTF / distortion test reports are available on request.
MTF is measured on an optical transfer function instrument covering 0–500 lp/mm (visible / NIR) and 0–60 lp/mm (LWIR), with on-axis accuracy better than ±2%.
TV distortion <0.15% Distortion is measured to better than 0.25% accuracy, so the figure in the datasheet is usable directly in your measurement model.
Production units can ship with a signed test report from our CMA / CNAS accredited optical testing center — specify the test items when you order.
PCB AOI, SMT placement, connector pins and character / 2D-code verification.
Wafer mark ID, lead-frame alignment and bonding inspection.
Springs, threads, seals and small turned parts at micron-level resolution.
Dimensioning, dynamic code reading and multi-height SKU capture.
A lens rarely fails on its own — it fails because the light, the camera interface or the mechanics were chosen in isolation. Here is what we recommend checking before you order.
Ring light for flat parts, coaxial for reflective surfaces, low-angle bar light for embossed features.
A C camera matched to the 2/3" sensor format.
Bandpass or polarising filter in the front thread to kill ambient light on the line.
C-mount extension tubes if you need a shorter working distance, plus a locking focus ring for vibration-prone stations.
Click any model number to open its own specification page.
| Model | Sensor | Focal length | Aperture | Magnification | Mount |
|---|---|---|---|---|---|
| FA0410A | 2/3" | 4mm | F1.2-F16 | C | |
| FA0528C | 2/3" | 5mm | F2.0-F16 | C | |
| FA0619A | 2/3" | 6mm | F1.9 | C | |
| FA0805A | 2/3" | 8mm | F2.0-F16 | C | |
| FA0814A | 2/3" | 8mm | F1.4-F16 | C | |
| FA1205D | 2/3" | 12mm | F1.6-F16 | C | |
| FA1605A | 2/3" | 16mm | F1.6-F16 | C | |
| FA2505A | 2/3" | 25mm | F1.6-F16 | C | |
| FA3505A | 2/3" | 35mm | F1.6-F16 | C | |
| FA5005A | 2/3" | 50mm | F2.0-F16 | C | |
| FA7505D | 2/3" | 75mm | F2.8-F16 | C |
Filter all 114 models in the Lens Selector → Back to FA Lenses →
Tell us the camera, field of view, working distance and defect size. We will confirm the model, send the full datasheet and 3D model, and quote the customization if the catalog part is not an exact fit.