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pinhole camera


honoria in ciberspazio

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Garden of Eden
pinhole camera
Just finished the Garden of Eden by Hemingway. Here's a chunk from p. 211:

Thank God he was breaking through on the stories now. What had made the last book good was the people who were in the accuracy of the detail which made it believable. He had, really, only to remember accurately and the form came by what he would choose to leave out. Then, of course, he could close it like the diaphragm of a camera and intensify it so it could be concentrated to the point where the heat shone bright and the smoke began to rise. He knew that he was getting this now.

I have good people in my story too. Leaving out all the academic representations of this that and the other would probably be wise and more fun but those academic idioms have to be there for the purpose of creating the aura of dissertation. If I wanted to and had a publisher, it might be fun to rewrite from the camera of my mail artist core. Is the diaphragm of a camera the thing that changes the aperture?

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Shutter Bug

The diaphragm controls the amount of light that is allowed to pass through the lens and onto the film. The diaphragm works like the iris in the human eye, and can be opened or closed to adjust to varying degrees of illumination.

John Camera Sways Ease Controls and Creativity

The Aperture Controls Light and Depth of Field
The aperture diaphragm, a ring of overlapping leaves within the camera lens, adjusts the size of the opening in the lens through which light passes to the image sensor. As it changes size, it affects both the exposure of the image and the depth of field in which everything is sharp.
Aperture and exposure
The aperture can be opened up to let in more light or closed (stopped down) to let in less. Like the shutter speed, the aperture is used to control exposure. The larger the aperture opening, the more light reaches the image sensor in a given period of time. The more light, the lighter the image.

Aperture and depth-of-field
Like shutter speed, aperture also affects the sharpness of your picture, but in a different way. Changing the aperture changes the depth of field, the depth in a scene from foreground to background that will be sharp in a photograph. The smaller the aperture you use, the greater the area of a scene that will be sharp. For some pictures-for example, a landscape-you may want a smaller aperture for maximum depth of field so that everything from near foreground to distant background is sharp. But perhaps in a portrait you will want a larger aperture to decrease the depth of field so that your subject's face is sharp but the background is soft and out of focus.

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