Theia SL410M 4K varifocal lens
Theia SL410M lens drawing

Theia SL410M 4-10mm FULL 4K CS-mount F1.4-C manual iris varifocal lens

Regular price £325.00 £325.00 Sale

The Theia Technologies SL410M FULL 4K resolution 12 Megapixel 4-10mm CS-mount varifocal lens is a superb quality lens ideal for a wide range of security, broadcast and industrial vision applications.  It achieves a 90-67° telephoto horizontal angle of view on a 1/2.3” sensor.  It is suitable for camera sensors up to 1/1.7" and has a manual iris range from F1.4 - Closed.

The superior quality of this lens combines stunning performance with the highest build quality and will support sensor technology up to 12 megapixels (4K) resolution.  This lens is also available in a wide range of motorised and non motorised options.



  • 4-10 mm lens
  • FULL 4K 12MP Resolution
  • Integrates with camera sensors up to 1/1.7"
  • Robust, precise mechanics
  • Weight 72 grammes
  • "Day/Night" Lens
Focal Length 4-10mm
Image Format 1/2.5" up to 1/1.7"
Adjustment Zoom, focus and iris adjustable with locking screws
Aperture Range F1.4 - Closed
Angle of View (H x V) 112-44 x 81-33 degrees (H x V) (1/1.7" sensor)
Image Circle 9.4mm diameter
Focus Distance 0.5m - infinity
Minimum Object Distance 0.5m 
Resolution Up to 4k / 12MP
Back Focus None
Flange Focal Length 12.5mm (in air)
Mount CS-mount (metal) with slip ring
Weight (g) 72 grammes
Dimensions 59mm (diameter) x 51.5mm (length)
Operating Temperature -20 to +60 degrees C


PRODUCT DATASHEET:                                     

Theia SL410M Lens Data Sheet (PDF)