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 | Definition 
 
        | Light-tight box that contains the camera's mechanisms and protects the film from light until you are ready to make an exposure. |  | 
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 | Definition 
 
        | Focuses an image on the film. |  | 
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 | Definition 
 
        | optical glass lens components that produce the image. |  | 
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 | Definition 
 
        | turning the ring focuses the image nu adjusting the distance of the lends elements from the film plane. |  | 
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 | Definition 
 
        | a circle of overlapping leaves that open up to increase or decrease the amount of light reaching the film. |  | 
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 | Definition 
 
        | adjusts the size of the iris diaphragm inside the lens |  | 
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 | Definition 
 
        | reflects light from the lens upwards onto the viewing screen |  | 
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 | Definition 
 
        | a ground-glass surface onto which the focuised image appears upside down & backwards |  | 
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 | Definition 
 
        | reflects the image from the viewing screen until it appears right side up & correct from left to right |  | 
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 | Definition 
 
        | window in which the corrected image from the pentaprism is visible to the photographer |  | 
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 | Definition 
 
        | opens to expose the film to the light |  | 
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        | Term 
 | Definition 
 
        | the light-sensitive material that records the image |  | 
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 | Definition 
 
        | advances an unexposed segment of film behind the shutter in prep for exposure |  | 
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 | Definition 
 
        | selects the shutter speed |  | 
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        | Term 
 | Definition 
 
        | activates the exposure sequence in which the mirror raises, the shutter opens, and the film is exposed. |  | 
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        | Term 
 | Definition 
 
        | attaches a flash unit to the camera |  | 
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        | Term 
 | Definition 
 
        | rewinds the film into its casette after the roll of film has been exposed. |  | 
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        | Term 
 | Definition 
 
        | the light-tight container in which 35mm film is packaged. |  | 
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