Axis Communications 2120 user manual Adjusting the Back Focus, Procedure

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Adjusting the Camera Focus

AXIS 2120 User’s Manual

Adjusting the Back Focus

Your AXIS 2120 is supplied with the back focus roughly set to accommodate a reasonable level of focus throughout the complete focusing range. However, if you are using a lens other than that supplied with your product - or you are dissatisfied with the quality of focusing at a specific plane (or at several planes) within the focusing range, you may need to make some fine adjustments to the back focusing of the lens. This is performed by adjusting the focus and zoom rings of the camera lens, as described below:

Procedure

1.With the Focus Ring set to the Far-focus (F, ∞ ) position, aim the camera at a subject over 30 metres away.

2.Set the lens assembly to wide angle, and adjust the back focus by loosening the Lock Ring and then turning the lens assembly. Continue to turn the lens assembly until you achieve optimum image clarity

3.Check that you obtain sharp pictures at various zoom grades and various distances.

Note: If possible, it is better to perform this adjustment in low light conditions, or with a filter covering the front optic. This will ensure the iris is fully open to give the smallest depth of field, and there- fore the best results.

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Contents Axis Network Camera Safety Notices Axis 2120 User’s ManualAbout This Document Legal ConsiderationsTable of Contents Table of Contents Axis 2120 User’s Manual Product Overview Axis 2120 User’s Manual Product OverviewFeatures and Benefits Product Overview Axis 2120 User’s ManualAxis 2120 User’s Manual Product Overview Physical Description Axis 2120 User’s Manual Physical DescriptionFront Panel Rear Panel Axis 2120 User’s Manual Physical DescriptionAssembling Your Camera Axis 2120 User’s Manual Assembling Your CameraChecking the Hardware Inventory Fixing the Axis 2120 to a Mounting Assembly Axis 2120 User’s Manual Assembling Your CameraInstalling Your Camera on a Network Quick Installation ProcedureInstalling Your Camera on a Network Axis 2120 User’s Manual ❶ Note the Serial numberNext section Axis 2120 User’s Manual Installing Your Camera on a NetworkNetwork Indicator Verifying the Installation From Your Browser Installation Wizard Administration ToolsInstalling Your Camera to a Modem Using the NetworkUsing the Null Modem Cable Axis 2120 User’s Manual Installing Your Camera to a ModemInstalling Your Camera to a Modem Axis 2120 User’s Manual ❿Click Close Connecting Your Computer Using the Null Modem Cable❺Check the checkbox Creating a Dial-up Networking Connection Refining the Dial-up Networking Properties Initiating the Dial-up Connection Verifying the Modem ConnectionAxis 2120 User’s Manual Configuring Your Camera Configuring Your CameraConfiguration Using the Wizards Administration Tools Installation Wizard OverviewConfiguring Your Camera Axis 2120 User’s Manual Application Wizard OverviewAccessing the Tools Tools Overview User Access Rights System SecurityMotion Detection Description Creating a Motion Detection WindowDeleting a Motion Detection Window Reinstating the Factory Default Settings Axis 2120 User’s Manual Choosing Your Application Choosing Your ApplicationNetworking Applications Picture frequency for Networking Applications Choosing Your Application Axis 2120 User’s ManualImage Compression Ratios Max fpsViewing Images in a Custom-designed Web LAN/WANSequentially Uploading Images to a Remote FTP Server Axis 2120 User’s Manual Choosing Your Application Choosing Your ApplicationAXIS 2120 User’s Manual ConfigurationModem Applications Picture Frequency for Modem Applications Proprietary ISP Dial-up ProtocolsRemote Imaging in a Custom-designed Web Uploading Images to Your Internet Service Provider Choosing Your Application Axis 2120 User’s Manual Adjusting the Camera Focus Direct Focusing in Your BrowserUsing the The Focus Assistant Axis 2120 User’s Manual Adjusting the Camera FocusFocusing Procedure Adjusting the Camera Focus Axis 2120 User’s ManualFocusing Quality Plane of FocusStatus Indicator Adjusting the DC-Iris Settings Replacing the LensLens Options Description Exposure Control OverviewOther Advanced Parameters Adjusting the Back Focus ProcedureFeatures and Functions Axis 2191 Audio ModuleLegal Considerations Axis 2120 User’s Manual Axis 2191 Audio ModulePower Connector Power Indicator Normally lit VolumeTerminal Block Connector Axis 2191 Audio Module Axis 2120 User’s ManualInstalling the Audio Module ❽ Using a screwdriverConfiguring the Audio Module Admin ToolsUsing the Audio Module with Your Camera Using the Different Audio ModesFull-Duplex Half-DuplexSimplex Talk Simplex ListenPossible causes Remedial actions Troubleshooting the Audio ModuleAxis 2120 User’s ManualThe Axis 2191 Audio Module Technical Specifications for the Axis Connection DiagramPin Camera Audio Module to Camera Serial CablePinouts for the RS-232 Port Troubleshooting Appendix a TroubleshootingFrequently Asked Questions New IP address PINGing Your IP AddressPing Reply Interpretation and recommendation Symptoms, Possible Causes and Remedial Actions Symptoms Possible causes Remedial actionsFaulty cabling Heavily loaded Server or an ISP No image using RefreshPlays red WorkstationAdjusted ActiveX disabledType lens Adapter. See alsoMethod Operating Systems Refer to Axis IP Installer Appendix B Other IP Setup MethodsAxis 2120 User’s Manual Other IP Setup Methods Using the Axis IP Installer Installing the Axis IP InstallerSetting the IP Address with the Axis IP Installer Other IP Setup Methods Axis 2120 User’s ManualAxis 2120 User’s Manual Other IP Setup Methods Updating the Firmware Axis 2120 User’s Manual Obtaining Updated Firmware Upgrading the FirmwareAppendix C Updating the Firmware Appendix D The Unit Connectors Auto Iris ConnectorSerial Connector Axis 2120 User’s Manual Unit ConnectorsIO Connector Unit Connectors Axis 2120 User’s ManualPhysical Connector Pin FunctionDigital Input Digital OutputSchematic Diagram Infrared Sensor Appliance Mains PowerAppendix E High-Speed Services NAT Feature in WindowsAvailable IP Addresses NAT BoxWinGate Server Software High-Speed ServicesRouters and Firewalls Customizing Procedures Appendix F Custom Web PagesEditing and Storing Your Webpages Custom Web Pages Axis 2120 User’s ManualCreating a New Home Fetch the boa.conf file, by typingAppendix G Technical Specifications Technical Specifications Axis 2120 User’s ManualAxis 2120 User’s Manual Technical Specifications Index IndexObtaining updated firmware XDSL Axis 2120 User’s Manual IndexGlossary of Terms