# Camera Focus The Canon cameras that are used for PANOPTES do not have an auto-focus mechanism so it is important to set a proper focus *after* all other deployment is complete but before a [polar alignment](/build/deploy/polar-alignment.md). {% hint style="info" %} Note that there are additional camera settings that should be set before the focus. See [Camera Setup](/build/hardware/camera-box/camera-setup.md) for details. {% endhint %} ### Focus The video below shows the general movements for the lens in order to focus the camera. {% embed url="" %} ### Focus Procedure Focusing is currently done via the live-view finder on the back of the camera while looking down into the box. This is sometimes awkward depending on the size of the box and the wiring, but the procedure should work well. {% hint style="warning" %} To focus a camera you will need to be able to view something at or near "infinity". At night this can be actual stars. If you can only focus during the day your unit will need to be able to "see" a distant object, e.g. a distant mountain range, far away lights, etc. {% endhint %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://www.projectpanoptes.org/build/deploy/camera-focus.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.