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How does the size of the hole in pinhole camera effect the quality of the image?
In a pinhole camera, the size of the hole has the same effect as the aperture setting on a more traditional camera. The size of the hole, combined with its distance from the film or sensor, controls the depth of field of the image and the length of exposure needed. Smaller holes will result in greater depth of field (to a point) and longer exposure. To compare a pinhole camera to a traditional camera, the distance from the film to the pinhole gives you the focal length, the size of the pinhole divided by the distance to the film gives you the effective aperture which can be used to determine the exposure needed. The reason that I included the "to a point" when discussing depth of field is that the pinhole must be in a very thin material and should be blackened in order to limit loss of sharpness due to diffraction. Diffraction also contributors to a loss of sharpness in traditional lenses when stopped down past f16 or so.
How does the size of the hole in pinhole camera effect the size of the image?
In a pinhole camera, the size of the hole has the same effect as the aperture setting on a more traditional camera. The size of the hole, combined with its distance from the film or sensor, controls the depth of field of the image and the length of exposure needed. Smaller holes will result in greater depth of field (to a point) and longer exposure. To compare a pinhole camera to a traditional camera, the distance from the film to the pinhole gives you the focal length, the size of the pinhole divided by the distance to the film gives you the effective aperture which can be used to determine the exposure needed. The reason that I included the "to a point" when discussing depth of field is that the pinhole must be in a very thin material and should be blackened in order to limit loss of sharpness due to diffraction. Diffraction also contributors to a loss of sharpness in traditional lenses when stopped down past f16 or so.
What are some of the materials that would be needed to create a vapor barrier in a crawl space?
There are several items needed to create a vapor barrier in a crawl space. Plastic, caulking, wire brushes, and a putty knife is just a few tools and materials needed.
What materials are needed to make a YouTube video?
A movie maker, and if you're making a home video you'll need a camera.
What happens when you make the hole bigger in a pinhole camera?
Yes.Option 1 (>1:1 on The Print): Take any photo and have it enlarged until the subject is larger than life size.Option 2 (>1:1 on The Negative): Expose the image with a subject distance shorter than the camera's focal length.Most pinhole cameras have a fixed focal length. This is the physical distance from the pinhole (lens) to the film plane.If the camera has a 100mm focal length, then any image where the subject distance is < (less than) 100mm will be larger than 1:1 (life size) on the negativeCapturing images inside the focal length (Option 2) of a pinhole camera can create some very interesting perspective. Very small or flat subjects will look "normal", but larger more dimensional subjects will get stretched. The effect can be somewhat like a fish-eye lens.
Where can one purchase the materials needed to create a website?
The materials needed to create a website can be obtained at any number of sites online. You need to purchase a domain name and a web host before attempting to set up your website. FatCow is a good place to obtain information and suggestions on the information needed to meet your needs.
Why did mobile cameras have to look for the wreck?
Because they needed a camera that is easily moved.
How did the government help people?
They went out and bought the materials they needed They went out and bought the materials they needed They went out and bought the materials they needed
What materials are needed to build a parking lot?
a lot of materials are needed .
What are the raw materials needed for making iron?
iron no other materials are needed
What does a scientist make to test a hypothesis?
An experiment is designed to test the hypothesis. To create an experiment, you have to first think of the what materials are needed, and then develop a procedure.
What materials are needed to make a hair straightener?
what materials are needed to make a hair straightener?
