Anchor Circuit Board: seat the circuit board back where it was and attach it to the case with the two screws shown in Figure 6.You might find it helpful to turn the lens back and forth several times to make sure it is free to turn, and you might want to make sure that all the glue has been removed so that nothing catches or is impeded.

Turning the lens lets you adjust the focus. Using the knife or other tool, remove the glob of glue so that you can turn the lens with the gear wheel. It is likely on the side that is toward the top of the camera case. Locate the glob of glue that prevents the lens from turning to focus.

Lift out the circuit board and find and remove the glob of glue. The goal of the following steps is to remove that glob of glue, so that you can turn the focus wheel (the “gear wheel” around the lens) to change the focusing distance.įigure 7. The lens is held at fixed focus by a glob of hot glue which is put on in the factory. Part B shows you how to create a small opening just large enough to be able to adjust the focus with a paper clip even with the face plate in place.Īll of the images in this article, both above and below, were taken with a C270 modified as described (although for some images I also did some minor cropping to highlight the most interesting parts). Part A below shows you how to open the case and remove the glob of glue that keeps the lens focus fixed. The narrower field of view of the C270 is better for looking just at a document, and once the focal distance is adjusted it will stay where it needs to be and won’t cause distractions. The more expensive Logitech C910 and C920 have an auto-focus feature which does too much back-and-forth focusing when used as a document camera, and it also has a wider field of view. One result of this modification is that the C270 becomes a better choice to use for a document camera. It is even possible to modify the case to create a small opening to allow you to change the focus manually using a paper clip. The lens inside the device can be focused for different distances, if you are willing to open up the case and remove a glob of glue. The Logitech C270 is an inexpensive all-purpose webcam with a fixed focus which is set at the factory to be used for face-to-face video meetings with the camera placed on top of your computer monitor or above a laptop screen. Instructions for modifying a Logitech C270 so that one can adjust the focus manually.

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