Focusing a camera and the first tests: Difference between revisions
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There's a whole separate section of the Wiki on [[Focusing_your_camera|focusing]], but here's the short version !! | There's a whole separate section of the Wiki on [[Focusing_your_camera|focusing]], but here's the short version !! | ||
* connect the camera to your network as above. | * With the camera in the housing, connect the camera to your network as above. | ||
* Open VLC. | * Open VLC. | ||
* | * At night, aim the camera out an open window at something at around 30-50 metres away. | ||
* Screw the lens in and out slowly to get best focus. | * Screw the lens in and out slowly to get best focus. | ||
* Pin-sharp focus is not necessary and is in fact not optimal - a little out of focus is fine as it helps stars show up. | |||
Aside: it is not necessary to focus on stars as the camera has an enormous depth of field and anything from a few metres to infinity will be in focus. However, you can double-check focus on stars if you want. | |||
You can | You can use the RMS utility ShowLivestream instead of VLC, if you have already fully configured the camera and Pi as explained in the next step. | ||
Note that there's a short lag due to the network, so you should wait a second or two after each adjustment to allow the change to be reflected in VLC. | Note that there's a short lag due to the network, so you should wait a second or two after each adjustment to allow the change to be reflected in VLC. | ||
Important note: if your camera came with an electronic filter | Important note: if your camera came with an electronic filter and you have left the 'daytime' filter in place you MUST finalise focus at night. The filters slightly alter focus. | ||
= [Optional] All system test = | = [Optional] All system test = | ||
Latest revision as of 06:52, 13 March 2026
Ahoj! In this section, cable the camera for the first time, do the preliminary focusing, configure your camera and optionally test the whole system.
Testing and Focusing
At this point, your camera must be tested and focused. There's no point sealing up the housing and screwing it to the wall if its not working or isn't focused !
Testing the Camera
- If your camera came with a single PoE cable, connect this to a netork cable and plug the other end of the network cable into your PoE injector.
- if your camera came with a cable with separate network and power sockets, plug the "output" PoE adapter into the camera cable and plug a network cable into the PoE adapter, then connect the other end of the network cable into the other PoE adapter.
- . Connect the PoE adapter or injector into a spare socket on your home router and connect the camera power supply to it.
The Camera PoE cable lights should come on, indicating traffic is flowing. After a few seconds, it should steady down to irregular flashing. If you don't see flashing lights then check the cable connections to make sure everything is plugged in properly.
Find its IP AddressThe camera should now appear as a device on your network and to test it properly you will need to find its IP Address. The easiest way to do this is using a free piece of software called [IP Scanner]. Download and run it (no need to install). Click "Scan" and wait till it finishes. The camera can usually be identified by Manufacturer 'ICP Internet Communications' or 'Motion Control Systems', though other vendor names are possible such as 'Koenig & Bauer AG' and 'Metrohm AG'. If none of the names look right you may need to experiment by trying to connect to each candidate in turn. Checking the Connection
If the image is upside down in VLC, turn it through 180 degrees in the housing. do not be tempted to use firmware settings to flip or mirror the image. These cameras have a 'rolling' shutter and to work out precise timings of meteors, the RMS software compensates for the shutter movement. If the camera is upside down and the image then flipped, the shutter is working in the opposite direction to that expected by RMS and timings will be wrong. You must physically rotate the camera.
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Checking for Obstructions of camera housingThis is to make sure that the camera housing is not too visible in the camera's FoV.
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Focusing the CameraThere's a whole separate section of the Wiki on focusing, but here's the short version !!
Aside: it is not necessary to focus on stars as the camera has an enormous depth of field and anything from a few metres to infinity will be in focus. However, you can double-check focus on stars if you want. You can use the RMS utility ShowLivestream instead of VLC, if you have already fully configured the camera and Pi as explained in the next step. Note that there's a short lag due to the network, so you should wait a second or two after each adjustment to allow the change to be reflected in VLC. Important note: if your camera came with an electronic filter and you have left the 'daytime' filter in place you MUST finalise focus at night. The filters slightly alter focus. [Optional] All system test
If the video stream opens and looks good, then you have successfully tested your system! Camera setup & configurationTo operate at night, the camera must be reset to the correct gain, colour mode and video mode. There are two ways you can do this - doing it via the CMS software (works on Windows only) or via RMS scripts (can be done directly from your Raspberry Pi). In any case it is recommended to watch the below video. Please note: IMX307 has almost identical firmware and the settings are the same apart from one and that is gain, which you need to set to 15 instead of 60 as for IMX291. Warning: Please set IMX307 to a fixed IP address instead of DHCP as there were reported issues with the DHCP setting on this module. Camera setup & configuration - Youtube video method
You are now done with this section and now you are going to install your camera into the position. Drilling holes into the wall is fun, right? Back to the signpost page. |
