Olympus AZ-4 Zoom manual Autofocus AF

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Autofocus (AF)

The Autofocus (AF) mechanism automatically adjusts focus. With it, the camera measures the distance to a subject and adjusts the lens so that the subject is in focus. Currently, with the exception of a few cameras for professional use, this function is included in most of the single lens reflex and compact cameras that are now on the market. Of course, this function is used in the AZ-4 Zoom. In the AZ-4 Zoom, focusing is done by a newly-developed "Phase-Difference" detection system. In this system, light from the subject is picked up by a special sensor and any inconsistencies (phase differences) in the image are used by a microprocessor chip to calculate the best focus setting. Since the lens used in the AZ-4 Zoom is very accurate, correct focusing is even more accurate and accomplished by just aiming the lens at the subject. When there is no light reflected from the subject, for example

43in a dark room, focusing is performed using a beam of light from the camera (the AF- Illuminator).

Autofocus is designed so that the subject in the center of the picture frame is correctly focused. However, sometimes you may want a subject that is not in the center of the frame to be in focus; for such cases, the AZ-4 Zoom is also equipped with a focus lock

(1) Subject that does not

(2) Subject with low

(3) A rapidly moving

include vertical lines

contrast

subject

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Contents Instructions Symbols used in this manual Preparations before taking pictures Loading batteries Preparations before Taking Pictures Loading Batteries Checking the Batteries Taking Photographs Loading the Film Page Page Taking Photographs Page Page Press the shutter release button halfway to focus Page Page Unloading the Film Page Taking Photographs Using the Focus Lock Taking a Continuous Series of Shots Using the Self-timer Page How to Use the Manual Focus Macro Photography Page Exposure Compensation Spot Metering Change the composition while pressing the Spot button Program Shift Double-exposure Photography Page Using the Reset Button Taking Photographs III Flash Photography Flash Auto Photography ISO Wide Tele Using Fill-in Flash Page Using an Exterior Flash Attachment Attaching a Shoulder Strap Order to take even better photographs How to use your zoom lens for the best results 35mm 70mm Autofocus AF Subjects with which autofocus is difficult Exposure Programmed exposureViewfinder Displays LCD Panel and Mode Buttons For Long-lasting Enjoyment of Your AZ-4 Zoom Care and Storage Radio Station Questions and Answers What kind of batteries should I use?Page Description of Controls Page Specifications Exposure compensation ± 4EV compensation potential 1/3 stepDimensions Accessories Sold Separately
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