User Guide
Table Of Contents
- An Introduction to the AXIS 2420
- Physical Description
- Checking The Hardware Inventory
- Installing on a Network
- Installing via a Modem
- Focusing Your Camera
- Configuring Your Camera
- The Factory Default Settings
- Choosing Your Application
- The AXIS 2191 Audio Module
- Appendix A - Troubleshooting
- Appendix B - Other IP Setup Methods
- Appendix C - Lenses and Advanced Focusing
- Appendix D - Customizing Your Camera
- Appendix E - Updating the Firmware
- Appendix F - The Unit Connectors
- Appendix G - High-Speed Services
- Appendix H - Technical Specifications
- Physische Beschreibung
- Überprüfen des Lieferumfangs
- Installieren in einem Netzwerk
- Anschließen an ein Modem
- Scharfeinstellung der Kamera
- Werkseitige Standardeinstellungen
- Description du Materiel
- Vérification de la liste du matériel
- Installation sur un réseau
- Installation par l’intermédiaire d’un modem
- Mise au point de votre caméra
- Restauration des paramètres d’usine par défaut
- Descripción física
- Comprobar el inventario de hardware
- Instalación de la cámara a una red
- Instalación de la cámara a un módem
- Enfocando la cámara
- Incluir los parámetros por defecto
- Index
Lenses and Advanced Focusing AXIS 2420 User’s Manual
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Exposure Control Overview
The table below provides a summary of the Exposure Control settings in the Image -
Advanced page. Select the parameters for your lens type and product application.
Other Advanced Parameters
Lens Options Description
DC-Iris The DC-Iris setting is the standard factory default setting found on the Image-Advanced page. It allows
the user to manually specify the exposure, shutter speed, gain, and ALC levels.
Non-DC-Iris - Manual Choose this setting if you have fitted a non-DC-Iris lens to your AXIS 2420, but wish to adjust the
shutter speed and gain manually.
Non-DC-Iris - Shutter Choose this setting if you have fitted a non-DC-Iris lens to your AXIS 2420 but wish to adjust the
shutter speed manually.
Non-DC-Iris - Auto Choose this setting if you have fitted a non-DC-Iris lens to your AXIS 2420 and would like the shutter
speed and gain to be adjusted automatically.
Lens Options Description
Shutter Speed Derived from the shutter speed on a normal camera, this parameter defines the exposure period for each
image. Use a high shutter speed only if your image subject is expected to be moving quickly; otherwise, a
slower speed will normally suffice.
Sharpness Defines a level of differentiation between light and dark areas within the image. Corresponding higher lev-
els of sharpness provide for sharper images, but also cause the image compression to be more complex.
Consequently, the file size of a sharp image can be significantly greater than an image that is less sharp.
Gain Adjust the gain to suit the average level of light at your point of installation. The AXIS 2420 should be set to
a corresponding higher level of Gain if your camera is normally monitoring an area at night, or is situated in
a dark room or cupboard.
ALC Level This defines how acutely the lens reacts to a single light source within the image. For example, with the ALC
level set at a higher level, the headlights from a car will generally cause the calculated average level of light
to increase, and subsequently result in a compensated image that is usually much darker.
Adjusting the ALC to a lower level reduces the sensitivity of the lens to single light sources within the
image.