Pinhole camera
Pin-hole camera (camera obscurer)
The word aperture does not apply to the lens itself. In a camera, the aperture is the diameter of the shutter opening which allows light to reach the lens.
The aperture of my camera lens will not open!
Since you don't specify which camera, I will try to describe mine as technically as I can. 1) Remove photographic capturing device from its protective chamber 2) Remove cover from the battery containment compartment of said photographic capturing device 3) Insert a properly charged Lithium-Ion energy cell into the containment compartment 4) Fold out the locking lever of the energy cell and turn it 90º clockwise to secure the energy cell 5) Fold in the locking lever 6) Remove protective cap from the mount end of the appropriate photographic capturing device lens 7) Remove protective cap from the photographic capturing device 8) Insert lens' mount end into photographic capturing device 9) Turn the lens appropriately to securely fasten it to the photographic capturing device 10) Remove the lens element protective cap 11) Rotate the photographic capturing devices main power activation lever to the "ON" position 12) Read the manual on how to operate the photographic capturing device 13) Adjust settings per the photographic capturing device manual 14) Tell people you are a perfeshunal foteographeric person because you have "one of them perfeshunal cameras"
just because it does without the lens light can not concentrates on the photographic sensitive material such as film or photographic paper
This stands for 'Aperture'.
A shutter is a device that shuts. In a camera, it's the device that opens for a period of time, usually very short, to allow light to pass through the aperture, and then shuts. An aperture is an opening. In a camera, it's the opening in the camera's body, usually where a lens and shutter are mounted, where the light enters on its way to whatever is going to capture the image.
In general, aperture does not start at 2.8. The aperture of a particular lens, however, can start at 2.8 depending on how the lens was built. Some lenses are designed so that the lowest f stop (aperture) is 2.8. Some lenses aperturef-stop may start at 1.4. Or 5.6. It just depends on the lens. So....again, in general, aperture does NOT start at 2.8.
lens opening; lens diaphragm some might suggest F-Stop
On for instance a 35-70mm camera lens the maxmimum aperture at 35mm is f3.5 and the maximum aperture at 70mm is f5.6. (f3.5-5.6) Maximum Aperture of a Variable Focal Length Camera Lens.
The focusing lens of the camera
By opening the aperture of the lens, the photographer was able to increase the photo's depth of field.