Fixed-focus lens

Fixed-Focus Lens
Fixed Focus Lenses are lenses that are fixed to be perfectly focused when it is placed at a specific distance from its subject. Unlike traditional lenses, fixed focus lenses can't be adjusted or manipulated (as the name implies).

Fixed-Focus Lens A lens that has been focused in a fixed position by the manufacturer. The user does not have to adjust the focus of this lens.

fixed-focus lens:
A lens in which the focus is preset and is not adjustable.
flare: ...

They have a fixed-focus lens that cannot pro- duce a sharp image of a subject closer than about 6 feet. Also, the shutter speed and diaphragm are preset and cannot be altered.

When I was 5, my uncle Al gave me an Ansco cadet—a 120 rollfilm camera with a fixed-focus lens and two modes: “Color' and “Black and White'.

Fixed-Focus Lens: A non-adjustable camera lens, which is set for a fixed distance.
Flash: A brief, intense burst of light from a bulb or flash unit.

It was a very simple box camera with a fixed-focus lens and single shutter speed, which along with its relatively low price appealed to the average consumer.

Fixed focus - A lens system that doesn't require focusing. Most point-and-shoot automatic cameras have a fixed-focus lens.

Autofocus provides better photo quality than fixed-focus, since autofocus lenses can be larger and allow more light to reach the sensor. It is possible to produce decent quality prints using a fixed-focus lens.

See also: Light, Photograph, Focus, Fixed-focus, Film