Manual iris lenses are best used for indoor applications where the light conditions remain constant. Click on an item below for a detailed printable spec sheet Computar Varifocal Lens 3.5~8mm f1.4 1/3" Manual Iris & Focus Lens w/ lock screws. Format 1/3", CS Mount. Focal length 3.5~8.0mm, aperture F1.4-C. Angle of view (degrees horizontal) 77.5~35.4. Dimensions 34x43.5mm. T2Z3514CS$33.00 Computar Varifocal Lens 3.5~10.5mm f1.0 1/3" Manual Iris & Focus Lens w/ lock screws. Format 1/3", CS Mount. Focal length 3.5~10.5mm, aperture F1.0-C. Angle of view (degrees horizontal) 81.6~27.2. Dimensions 41.6x48.8mm. T3Z3510CS$43.00 Computar Varifocal Lens 2.8~12mm f1.3 1/3" Manual Iris & Focus Lens w/ lock screws. Format 1/3", CS Mount. Focal length 2.8~12mm, aperture F1.3-C. Angle of view (degrees horizontal) 98.2~23.8. Dimensions 40.7 x 56mm. T4Z2813CS$46.00 Computar Varifocal Lens 1.8~3.6mm f1.6 1/3" Manual Iris & Focus Lens with lock screws. Format 1/3", CS Mount. Focal length 1.8~3.6mm, aperture F1.6-C. Angle of view (degrees horizontal) 144.2-79.4. Dimensions 38x50.5mm. T2Z1816CS$129.00 Computar Varifocal Lens 5~50mm f1.3 1/3" Manual Iris & Focus Lens with lock screws. Format 1/3", CS Mount. Focal length 5~50mm, aperture F1.3-C. Angle of view (degrees horizontal) 64-6.9. Dimensions 47x57.7mm. T10Z0513CS$77.00 Packaged security camera systems | Security Cameras | Unitized Security Cameras | Board & Mini Security Cameras | Covert security cameras | Video transmission | Security Camera Lenses | Monitors | Time lapse recorders | Switchers Quads Multiplexers | Housings & mounts | Wireless video | Installation Necessities | Motion detectors | Power supplies | Cabinets & Racks | Power protection | Video Signal | Digital Video Recorders | Remote Video Systems | Video Over Network | Security Products Contact Our Sales Dept. Comments to: webmaster@securityideas.com Site design by Superior Media Security Design Services family of companies securityideasvar.com | cctvhardware.com | allkindscable.com | securityideas.com | buyviconcctv.com www.securityideas.com is TM & © 1999-2008 Security Design Services Corp. All promotional art, characters, logos and other depictions are TM & © their respective owners. All Rights Reserved.