English term
halation
Use your wide-open CA test shot, and examine the branches. If they have a translucent look, it’s probably due to halation. (Colours Magazine)
Halation creates secondary ghost images in the film, which to photographers is bad because they are a by-product of unintentional light and film interaction. (anbstudio)
To combat halation, film manufacturers treat the base of the film to reduce or nullify reflections. Grey base is a film base permanently dyed a low density grey colour, this reduces reflection back into the emulsion and light-piping within the base. (National Film and Sound Archive)
| 4 | تاری حاصل از پراش |
Alireza Jazini
|
Mar 9, 2010 18:15: changed "Kudoz queue" from "In queue" to "Public"
Mar 9, 2010 18:56: changed "Stage" from "Preparation" to "Submission"
Mar 12, 2010 19:58: changed "Stage" from "Submission" to "Selection"
May 8, 2010 19:55:
May 4, 2020 12:54: changed "Stage" from "Selection" to "Completion"
Proposed translations
Canada
Consider it done!, PhD, +15 yrs of exp
Native in: Persian (Farsi) 
Works in: English to Persian (Farsi), Persian (Farsi) to English
تاری حاصل از پراش
فیزیک پراش نور مبحث گسترده تری است که خارج از این مقاله می باشد اما برای ما این مهم است که دیافراگم های بسته تر، تاری بیشتری حاصل از پراش ایجاد می کنند که راه گریزی از آنها نیست. (academy)
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