Lenses are circular as are lens assemblies.
The lens is used to focus the light rays onto a square or rectangular shape where it is recorded.
A camera is a 3D shape. A photograph is a 2D projection of a 3D shape onto a 2D shape.
A point and shoot camera can be a fixed focus which does not require focusing as in the single use types. If a camera is not auto focus or fixed focus then you must focus it manually. This is usually done by rotating a part of the lens until the picture is clear in the view viewfinder
who invented the auto focus camera
tell me the answer
The best way to focus the M417 camera is doing manual focus. Per the Amazon.com sales page for the camera, there has been noted that there is a defect with the auto focus. http://www.amazon.com/HP-Photosmart-M417-Digital-Optical/dp/B0007KTG1M
A CPU camera lens has electrical contacts on it. This means that it also has the auto focus option, which is where the lens will focus itself.
Apparently it an auto-focus camera. The user cannot focus manually. If you read the specifications (see related link) it has a full list of the camera's features.
square.
cylindrical.a 2D shape that's roundIn the shape of a circle - round
Lens
You need to change the focus on the lens. There should be a part around the camera lens that turns, this will change the focus of the camera.