1)Single-lens -reflex camera the photographer sees the scene through the camera lens.
2)Leaf shutter-precisely the in-lens shutter is a shutter contained within the lens structure.
3) Focal-plane shutter- operates as close to the film plane as possible and consists of cloth curtains that are pulled across the film plane with a carefully determined gap between the two curtains.
4) Scale-focus- camera can that have a limited focusing range.
Shutter- allows light to pass for some amount of time.
Exposure- amount of allowed to fall on each area unit of a photographic medium.
Depth of field- range of distance that appears acceptably sharp.
Aperture - openings that are measured as fractions of the focal length of a lens. That is what the 'f' stands for in the aperture rating, 'focal length'
F Stop - a ratio used in a camera lens. It is concerned with the amount of light the lens lets in, how fast the camera can take a picture, and how much of the picture will be in focus.
Focal length- your lens essentially determines how ‘zoomed in’ your photos are; the higher the number, the more zoomed your lens will be.
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