S-Mount Miniature Fisheye Lens | 200° and 5MP-8MP up to 1/1.8" such as AR0521 and IMX678

200°@5.5mm Fisheye M12 Lens

The CIL237 is a 1.7mm M12 Fisheye Lens with 200°@5.5mm image circle, intended for sensors up to 5MP 1/2.5" and 8MP 1/1.8". The small 19mm TTL form factor and hybrid glass-plastic design make this a cost-competitive high performance lens.

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$39.00

$0.00

There are 0 units CIL237-F2.2-M12A660 (F/2.2 / M12A / With 660nm IRC Filter) at our US location. We try to restock quickly. Please contact us for availability.

There are 53 units CIL237-F2.2-M12ANIR (F/2.2 / M12A / Without Filter) in stock in the US.

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.STP / Drawing Engineering Support

Lens Features

200° FoV

Maximize your camera's viewing angle with a 5.5mm image circle.

Short TTL

19.0mm TTL for great size-performance-cost balance

F-Θ Distortion

<2% F-Θ distortion to 170° FoV for constant angular resolution

Optical and Mechanical Specification Table

Lens Parameter	Performance Detail
Part Number	CIL237
Format Type	1/3" to 1/1.7"
EFL	1.7mm
F#	2.2 Fixed
Resolution	5MP 1/2.5"-8MP 1/1.8"
Field of View	192° @ 5.4mm image circle Calculate for your sensor using our M12 Lens Calculator
Image Circle	5.5mm
Distortion	Special Distortion. See Spec. Less than 2% F-Θ to 5.0mm Im.Circ. -8% F-Θ @5.5mm Im.Circ
Weight	5g
IR Cut-Off Filter	P/N With: CIL237-F2.2-M12A650 P/N Without: CIL237-F2.2-M12ANIR
Construction	Glass+Plastic, Metal

Mechanical Variants

Variant	Description
"M12A"	BBAR on Lens 1 Surface 1, Metal Cap+Barrel

Mechanical Layout

Camera Mechanical Compatibility Table*

Camera/Mount	Compatibility
Commonlands Compatible Mount	CLA020
e-con Systems / Standard S-Mount	7mm-10mm tall mount
Allied Vision Alvium S-Mount	No
FLIR Blackfly S Board	No
iDS uEye LE	Rev1.1: Yes, Rev1.2: Must order PN ending "C-NO"
The Imaging Source M12	Contact The Imaging Source
Basler Dart S-Mount	No

*Mechanical compatibility only, assuming the standard M12x0.5 lens mount provided by the camera manufacturer. Please check optical compatibility separately.

Click here to download .STP files and Mechanical Drawings