TOA 13FG04IR-SQ 1/3-Inch IR Mono-Focal Surveillance Lens (4mm)
Official Optoelectronic Data Sheet & Camera Integration Framework
The TOA 13FG04IR-SQ is a premium, high-resolution 4mm mono-focal (fixed) lens designed for 1/3-inch and 1/4-inch image sensors on professional CS-mount security and industrial box cameras. Engineered with advanced Infrared (IR) correction, this lens eliminates focus shift when transitioning between visible and infrared light spectrums. Featuring a fast F1.2 maximum aperture and automated DC Iris control, it is ideal for 24/7 low-light perimeter surveillance, industrial quality control, and machine vision deployments across Pakistan.
| Parameter | Specification Details |
| Primary Device Function | IR-Corrected Mono-Focal Surveillance & Machine Vision Lens |
| Optical Format Size | 1/3-inch (Fully compatible with 1/4-inch sensors) |
| Mount Type Standard | CS-Mount (Precision metal threading) |
| Focal Length | 4.0 mm (Fixed wide-angle capture) |
| Maximum Aperture Ratio | F1.2 to Close |
| Iris Control Type | DC Auto Iris (Direct Drive electronic actuation via integrated cable) |
| Focus Operation | Manual focus adjustment with locking thumb screw |
| Angle of View (1/3″ Sensor) | Horizontal: 66.2° / Vertical: 50.0° |
| Angle of View (1/4″ Sensor) | Horizontal: 49.3° / Vertical: 37.0° |
| Minimum Object Distance | 0.2 meters (7.8 inches) from the front element |
| Optical Correction | Day/Night IR Corrected (Visible and Near-Infrared focus matching) |
| Aperture Range | F1.2 to F360 equivalent via auto-drive normalization |
| Physical Weight | Approx. 45 grams (Lightweight, compact zinc-alloy housing) |
The core optical housing matches precision industrial engineering parameters, but SKYRS provisions and delivers the 13FG04IR-SQ lens platform in specialized hardware configuration profiles for projects in Pakistan:
13FG04IR-SQ-STD (Standalone Optical Assembly): The baseline factory precision IR lens equipped with a standard 4-pin square DC auto-iris connector terminal, tailored for indoor box cameras.
13FG04IR-SQ-ENV (Outdoor Environmental Profile): Includes a specialized thermal-stabilization ring configuration. This is supplied directly by SKYRS to reinforce internal optical alignment when housed inside heated/fan-cooled outdoor IP66 surveillance enclosures exposed to intense regional temperature swings.
Verify that the targeting box camera utilizes a native CS-mount sensor layout. If the camera is a C-mount unit, a mandatory 5mm adapter ring must be inserted first.
Power down the host security camera before attaching the motorized auto-iris control line to prevent voltage spikes.
Ensure the image sensor face is entirely free from environmental dust particles.
Thread Assembly: Remove the protective rubber dust caps from both the box camera sensor cavity and the rear element of the 13FG04IR-SQ lens. Carefully screw the lens clockwise directly into the camera’s CS-mount thread until it sits completely flush and firm.
Auto Iris Connection: Locate the 4-pin square DC Iris connector attached to the lens harness. Insert it into the designated matching DC IRIS side port on the box camera body.
Coarse Target Adjustment: Power on the box camera system and bring up its live video stream on a local test monitor. Loosen the manual focus thumb ring lock on the lens barrel body.
Fine Optical Focusing: Open the camera’s internal administrative menu page and temporarily set the electronic shutter or iris mode to wide open (simulating a low-light environment). Adjust the lens focus ring until the distant horizon and near-field edges appear perfectly sharp, then lock the thumb screw firmly.
Because the 13FG04IR-SQ is a passive optoelectronic component with direct electronic iris feedback, its programming relies on adjusting the host camera’s digital signal processor configuration profiles.
Gain & Drive Tuning: Access the camera web GUI management dashboard. Navigate to the Video/Lens setting menu screen and toggle the selection mode to DC Iris. Run the automated “Lens Wizard” configuration utility if supported by the host camera to auto-calibrate the feedback loops.
Day/Night IR Shifting Control: Set the Day/Night switching parameters to match the optical performance of the lens. Because the 13FG04IR-SQ features native IR-corrected glass, you can safely configure the camera’s mechanical IR-Cut filter to pull back instantly at low light levels without needing to program software focus-offsets inside the security platform.
Notice: The TOA/Tamron 13FG04IR-SQ IR Mono-Focal CS-Mount Lens and all corresponding environmental integration hardware kits are available and supported exclusively through SKYRS within Pakistan.
SKYRS provides specialized security ecosystem designs, certified system engineering matching, official hardware warranties, and dedicated localized deployment assistance across all national markets.
