It governs the amount of light that is transmitted to the film (or digital imaging device) by virtue of the it's size (diameter). It works in conjunction with the shutter, which controls the amount of light through the time span it is open.
It is Diane Arbus
camera filter is the aperature of recharging batteries also know as gain.
You need to be able to see the slide and the aperature is that opening in the body tube.
To find resolution power of optical microscopes.
If you think about your lens like a papertowel tube over your eye. Now constrict the tube so that it is thinner. This is what the aperature ring does on the end of your lens; it constricts the light flow so that you don't have overexposed images, or helps you to bring out certain colors if you are doing artistic shots. Experiment with changing the aperature in the same setting, you will understand how it works. If you happen to have a non-digital lens lying around, change the aperature off the body, and you will have a perfect understanding how it works.
The fundus is the top portion of the uterus, at the opposite end from the cervix. It projects above the entrance of the uterine tubes.
if the aperature of the condeser is opened completely and bright field stop is inserted beliw the condenser
When the f-stop of a camera increases in size the aperature also gets bigger
The smaller the aperture, the sharper the image. If your question is WHY that happens, hopefully another contributor will help out with that answer.
You 'stop down' the lens, meaning you shrink the aperature so that light can't refract through the very edges.
The aperature can control the amount of light that comes into the camera just like the pupil of the eye.
No. Iron sights or peep sights (aka aperature sights) are the only type allowed for the merit badge.