This document discusses various lens operations and controls including focal length, f-stops, lens speed, iris, macro lenses and focus, zoom lenses, wide angle lenses, depth of field, angle of view, zoom and zoom ratio, filters, and image stabilization. Focal length determines the distance between the lens and its focus point. F-stops correspond to aperture settings and lens speed refers to maximum aperture diameter. Macro lenses can produce life-size images and zoom lenses allow smooth changes between long and close-up shots. Wide angle lenses exaggerate depth and size while depth of field is the range of focus. Angle of view depends on focal length and sensor size. Zoom and zoom ratio determine the visible scene area. Filters include

1. Lens Operations and Controls
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By: Akylie and Vivian

2. Focal Length
The distance between the center of the lens
and its focus.

4. F-Stops
A camera setting corresponding to a f-number.

6. Lens Speed
Is referred to the maximum aperture diameter,
or minimum f-number on a camera.

7. Iris
Of an aperture, typically that of a lens, open or
close in the manner of an iris or iris
diaphragm.

9. Macro Lenses and Focus
Be able to produce a life size image of an object.

11. Zoom Lenses
A lens that lets the camera change from a long
shot to a close up smoothly.

13. Wide Angle Lenses
Exaggerates depth and relative size in the
photo.

15. Depth of Field
The difference between the nearest and farthest
objects.

17. Angle of View
Focal-length determines the angle of view seen
thru the sensor size.

19. Zoom and Zoom Ratio
Determine how little or how much of the scene
you see when photographing.

20. Filters
Include polarizing filters to reduce glare and
improve saturation, or simple UV/haze filters
to provide extra protection for the front of
your lens.

22. Image Stabilization
To reduce blurring that is created from the
cameras movement in an image.