Rectangle
Lenses are circular as are lens assemblies.
It used to be done by casting the lens in a rough shape, then hand polishing. Lenses today are cut and polished with lasers.
To create a DIY bokeh lens for your camera, you can use materials like black construction paper, scissors, and tape. Cut out a shape (like a heart or star) in the center of the paper, then tape it over your camera lens. When you take a photo with this setup, the shape will appear in the out-of-focus areas, creating a bokeh effect.
A camera lens is actually made up of many smaller lenses; from one to twelve (or more, depending on the application). A lens element is just one of the many others that is inside the camera lens. Lens Barrel: The complete camera lens that houses the many individual lens elements. It also has the mounting hardware located in the rear, which connects to the camera body.
To remove a camera lens, first locate the release button or switch on the camera body near the lens. Press or slide this button to release the lens. Then, gently twist the lens counterclockwise to unscrew it from the camera body. Be careful not to force it, as this could damage the lens or camera.
No, this is a point & shoot camera and there is no lens mount. The lens is fixed on the camera and cannot be removed.
The lens is used to focus the light rays onto a square or rectangular shape where it is recorded.
You can't. The lens on a Canon SD950 is integral to the camera body. Trying to remove it will ruin both the camera and the lens.
To create a DIY macro lens for your camera, you can use a small magnifying glass or a reversed lens from an old camera. Attach the magnifying glass or reversed lens to your camera using a lens adapter or by holding it in front of the camera lens. Experiment with different distances and angles to achieve the desired macro effect.
The focusing lens of the camera
A camera lens.
bioconvex lens