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A latent image is an invisible image produced by the exposure to light of a photosensitive material such as photographic film. When photographic film is developed, the area that was exposed darkens and forms a visible image. In the early days of photography, the nature of the invisible change in the silver halide crystals of the film's emulsion ...
The overall ability of an imaging system to bring out the maximum number of details in an image is called: Resolution. What is the term used to describe the image before digital processing? a) Developed image. b) Processed image. c) Latent image. d) Enhanced image. c) Latent image. How does milliamperage (mA) affect exposure to the IR?
- Introduction
- Stage 1: The Latent Image Phase
- Next Post
If you are like me, the chemistry I learned for GCSE A level and my first year university biochemistry has long faded. Despite this, I think it’s worth revisiting it to appreciate the magic of what is involved in making a negative. There are plenty of books on photographic chemistry 1 , many written in the heyday of photographic chemistry in the la...
Photographic emulsion is made by combining silver nitrate with a halide (Potassium Chloride or Bromide or Iodide or a combination) to give a silver halide with a nitrate by-product. This is done in high grade gelatin to give the silver halide a substrate, enabling a smooth dispersion of the halide across the acetate of the film (or the paper of pho...
As mentioned, there are a number of different views about how the latent image is formed and how development of the image is triggered. In the next post in this series I will describe the competing claims about the development of the silver image from the latent one and also go into the different types of developing agent.
a latent image – occurs in silver halide crystals that are struck by a sufficient number of photons. When the film is developed, the latent image produces a visible image.
Feb 27, 2016 · The term latent image refers to that image that exists on film after that film has been exposed but before it has been chemically processed. Film processing changes the latent image into a manifest image.
Feb 27, 2013 · The distribution of silver reflects the distribution of light and is what we refer to as “the latent image.”. You can’t see it and if you turn the lights on to try to see it, you will over expose the film – “Catch 22!”. The latent image is there waiting to be developed.
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1. Imaging Plate (IP) contains the PSP layered on a base to provide support. 2. PSP must be scanned by a laser beam of a specific wavelength in order to render the latent image as visible. -Phosphors should have good x-ray absorption efficiency and must be capable of being stimulated by a helium-neon laser. 3.
