By: SecOptx
Security & Machine Vision Optics
Contact us for lowest price (800) 284-2288, (858) 565-1101,, or fax (858) 300-4193
4mm Fixed Lens
The SecOptx LFCS4M is a 4mm fixed focal lens.
4mm fixed focal length lens
Manual Iris
CS mount
1/3" Format
Compatible with 1/3" and 1/4" cameras
Focal Length 4mm
Max. Relative Aperture 1: 1.2
Iris F1.2-Close
Zoom Ratio N/A
Angular Field of View 1/3": 70.7° x 53.4° @ 4mm
1/4": 53.4° x 37.3° @ 4mm
Minimum Object Distance(M.O.D.) 0.1m (From Front Vertex)
Optical Back Focal Distance 9mm (In Air)
Flange Back 12.5mm
Operation Zoom N/A
Focus Manual
Iris Manual
Operation Temperature -10 - 50°C ( 14 - 122°F)
Filter Size N/A
Mount CS-Mount (Adjustable Lens Position)
Size, Approx. Ø30 x 33.7mm / Ø1.2 x 1.3in.
Weight 35g, 1.2oz.

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Prices and specifications subject to change without notice.