FT230 Series Fixed Focal Length Lenses | Oklab®️

· FT230 Series Fixed Focal Length Lenses Details

Oklab® FT230 Series Fixed Focal Length Lenses provide superior performance for critical machine vision needs. Their large aperture and high resolution excel in factory automation across multiple industries—logistics, automated equipment, SMT, pharmaceutical packaging, and smart manufacturing.

These lenses feature fast F/1.4 apertures and compact 4.5mm focal length with exceptional resolution. They deliver clear images even in poor lighting conditions, perfect for applications where illumination is a challenge.

FT230-1214 Datasheet  (12mm)
	Focal Length (mm)		f=12
	Max Diameter(RATIO)		F=1.4-16
	Picture Size		2/3"
	Angle	H	37.95°
		V	32.39°
		D	48.34°
	Distortion(TV)		<0.19%
	Focus distance(min) (mm)		50
	Filter screw size		M34 P0.5
	Max sensor size		Φ11(2/3"）
	Relative Illumination		47.6%
	Mount		C-Mount

FT230-1614 Datasheet  (16mm)
	Focal Length (mm)		f=16
	Max Diameter(RATIO)		F=1.4-16
	Picture Size		2/3"
	Angle	H	29.76°
		V	25.30°
		D	38.34°
	Distortion(TV)		<0.18%
	Focus distance(min) (mm)		100
	Filter screw size		M34 P0.5
	Max sensor size		Φ11(2/3"）
	Mount		C-Mount

FT230-2514 Datasheet  (25mm)
	Focal Length (mm)		f=25
	Max Diameter(RATIO)		F=1.4-16
	Picture Size		2/3"
	Angle	H	17.31°
		V	14.65°
		D	22.57°
	Distortion(TV)		<0.07%
	Focus distance(min) (mm)		100
	Filter screw size		M34 P0.5
	Max sensor size		Φ11(2/3"）
	Mount		C-Mount

FT230-3514 Datasheet  (35mm)
	Focal Length (mm)		f=35
	Max Diameter(RATIO)		F=1.6-16
	Picture Size		2/3"
	Angle	H	12.13°
		V	10.25°
		D	15.85°
	Distortion(TV)		<0.01%
	Focus distance(min) (mm)		150
	Filter screw size		M30.5 P0.5
	Max sensor size		Φ11(2/3"）
	Mount		C-Mount

FT230-7514 Datasheet  (75mm)
	Focal Length (mm)		f=75
	Max Diameter(RATIO)		F=2.0-16
	Picture Size		2/3"
	Angle	H	5.99°
		V	5.08°
		D	7.80°
	Distortion(TV)		<0.02%
	Focus distance(min) (mm)		400
	Filter screw size		M43 P0.75
	Max sensor size		Φ11(2/3"）
	Mount		C-Mount

FT230-04514 Datasheet  (4.5mm)
	Focal Length (mm)		f=4.5
	Max Diameter(RATIO)		F=1.4-16
	Picture Size		1/1.8"
	Angle	H	78.54°
		V	57.43°
		D	88.00°
	Distortion(TV)		<0.91%
	Focus distance(min) (mm)		50
	Filter screw size		M72 P0.75
	Max sensor size		Φ9.2(1/1.8"）
	Mount		C-Mount

 

 

Inspection of FT230 Series Fixed Focal Length Lenses Our FT230 Series Fixed Focal Length Lenses | Oklab®️ works great in all kinds of machine vision setups. They feature large aperture, high definition, premium quality, and high-speed capabilities to meet the most demanding requirements in modern manufacturing and quality control environments.Here are just a few real-world examples of where they shine. Having trouble with a tough inspection problem? Reach out anytime—we're ready to help you find the right solution for your specific needs.
	High-Speed Logistics Inspection Capture Barcodes in Just 50μs with Oklab® FT230 Large Aperture Lenses The FT230 Series delivers exceptional performance for fast-moving logistics applications. With large F/1.4 apertures capturing more light, these lenses enable ultra-short 50μs exposure times—perfect for high-speed barcode scanning, OCR reading, and surface inspection on rapidly moving packages.  When conveyor speeds increase but image quality can't be compromised, the FT230 Series provides the light sensitivity and resolution you need for reliable logistics vision solutions.
	SMT Mounting Inspection How Oklab® FT230 Large Aperture Lenses Revolutionize Component Placement Verification The FT230 Series Fixed Focal Length Lenses deliver superior optical performance for the critical mounting phase of SMT production. With large F/1.4 apertures and exceptional resolution capabilities, these lenses excel in high-speed component placement verification even in challenging lighting conditions. Designed specifically to overcome the limitations of conventional optics, the FT230 Series enables precise detection of minute placement errors on fine-pitch components, significantly reducing false rejects while maintaining production throughput. Ideal for modern SMT lines where speed and accuracy cannot be compromised.
	Precision Part Recognition   Oklab® FT230 Large Aperture Lenses Redefine Feature Detection & Component Sorting The FT230 Series delivers superior performance for intelligent part recognition applications. With large F/1.4 apertures providing exceptional light-gathering capability, these lenses excel at detecting fine features and subtle differences even in challenging lighting conditions. Experience enhanced contrast and clarity that improves machine vision algorithms' ability to accurately identify, sort, and verify components—boosting throughput while maintaining precision in automated recognition tasks. When reliable feature detection is critical to your process, the FT230 Series provides the optical performance needed for consistent, high-quality results.
	High-Speed Logistics Inspection Oklab® FT230 Large Aperture Lenses for Dynamic Quality Control When reliable feature detection is critical to your process, the FT230 Series provides the optical. The FT230 Series large aperture lenses excel in rapid defect detection applications where split-second imaging is critical. With F/1.4 apertures capturing more light, these lenses enable ultra-short exposure times for crystal-clear images of products in motion. Detect surface imperfections, dimensional errors, and subtle defects at full production speeds without motion blur. When your quality control process demands both speed and precision, the FT230 Series delivers the optical performance needed for reliable high-throughput inspection.

 

 

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FAQ of FT230 Series Fixed Focal Length Lenses

1. Do all FT230 Series Fixed Focal Length Lenses have an F1.4 maximum aperture?

No. The published specifications list F1.4 for the 4.5 mm, 12 mm, 16 mm and 25 mm models, F1.6 for the 35 mm model, and F2.0 for the 75 mm model. The page offers an 8 mm option but does not provide its complete technical data.

2. Can FT230 Series Fixed Focal Length Lenses guarantee a 50 μs exposure for barcode capture?

No. The page describes a 50 μs barcode-capture application using the large-aperture models, but this exposure time is not guaranteed in every system. Actual performance depends on illumination intensity, sensor sensitivity, camera gain, object speed and barcode contrast.

3. Can the 4.5 mm FT230 Series Fixed Focal Length Lenses cover a 2/3-inch sensor?

No. The FT230-04514 is specified for sensors up to 1/1.8 inch, with an 8.83 mm image circle and an 88° diagonal angle of view. The listed 12–75 mm models support sensors up to 2/3 inch.

4. What makes the 75 mm FT230 Series Fixed Focal Length Lenses different from the shorter focal-length models?

The 75 mm model provides a narrow 5.99° horizontal angle of view on a 2/3-inch sensor and has a minimum working distance of 400 mm. It is more suitable for inspecting small features from a longer distance than for covering a wide scene.

5. Do the large apertures of FT230 Series Fixed Focal Length Lenses eliminate the need for external lighting?

No. A large aperture allows more light to reach the sensor and can shorten exposure time, but stable machine-vision inspection still requires controlled lighting. At F1.4, the reduced depth of field must also be considered when the target height varies.

6. What does the 47.6% relative illumination value mean for the 12 mm FT230 Series Fixed Focal Length Lenses?

Relative illumination describes how image brightness changes from the optical center toward the edge. The listed 47.6% value indicates noticeable edge brightness falloff under the specified test conditions. Uniform inspection may require lighting adjustment or flat-field correction.