The same as the irises of your eyes, it controls the amount of light that passes through the aperture.
It is identical in action to the iris in your eye, it widens and narrows to allow only the required amount of light through the aperture hole/pupil
The iris. - - - - - No. It's the eyelid. The shutter's function is to completely stop light from reaching the film (or the sensor, if you have a digital camera with a mechanical shutter). The iris in your eye cannot do this--only the eyelid can.
The diaphragm, often called the "iris" diaphragm for its identical form and function to the iris in your eye, regulates the physical amount of light allowed to pass through a camera lens. It may be called the "iris," the "diaphragm," the "iris diaphragm," the "stop," or the "aperture." All mean the same thing.Physically, the diaphragm or iris diaphragm is made up of overlapping thin opaque metal plates, usually six or eight, which can be adjusted to increase or decrease the diameter of the hole, called the stop, in the center of the lens. The diaphragm is often located at the optical center of the lens between sets of elements. On manual cameras there is usually a ring around the lens barrel marked in f/stops for adjustment of the diaphragm.The iris (diaphragm) in your eye, working properly, automatically opens or closes in response to light level. When you are exposed to strong light the iris closes down (or "stops" down) to a smaller diameter, decreasing the light reaching your retina (equivalent to the film or sensor in your camera). In dim light, the iris opens up to admit more light. The diaphragm in your camera works the same way, and on modern cameras it's often equally automatic. You may never even notice it's working.In a camera, the iris diaphragm and the shutter have to work together to control the total exposure. The iris diaphragm controls the amount of light, and the shutter controls the amount of light over time. Depending on the make and model of the camera, shutter and diaphragm may be manual, automatic or both. The diaphragm is the mechanism that varies the size of the aperture; the opening that allows light into the camera.
"Iris folding" is an arts and crafts term used to describe folding paper in such a fashion so as to form a design. There are various patterns available for specific designs one can make with Irish folding. The technique is named because the center of the folded design resembles the iris of a camera.
1) The Diaphragme (iris)- Limits the amount of light that goes into the camera. 2) The Lens- Light passes through the lens to form an inverted image in the camera. 3) Charge Coupled Device (CCD)- Absorbs light and emits electrical signals needed to produce a digital image.
The iris acts like the aperture of a camera lens.
The iris is like the aperture part of a camera, which used to also be called the iris.
f-stop
The iris of the camera allows more or less light to enter the camera.
iris
the iris
A camera's diaphragm and your eye's iris perform the same function in the same way. They both control how much light is allowed through the lens by expanding and contracting.
Like fingerprints, a person's iris is unique. An iris scan is accomplished by a system that uses a device like a digital camera to record details about a person's iris. The image is converted to an iris code and stored in a database for future use.
iris
An autoiris is a camera iris which adjusts automatically based on light levels.
It is identical in action to the iris in your eye, it widens and narrows to allow only the required amount of light through the aperture hole/pupil
Not the pupil itself but the SIZE of it as controlled by the eye's Iris does this, it acts in a way similar to a camera's F stop iris.