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Topic 1

CAPTURE A DIGITAL IMAGE

Photography

• Comes from Greek :

– Photos - Light– Graphos – Drawing

• = Drawing with Light

• Pictures are reflections of light

Unit Content

• Identify the features of a digital camera and set up an image for capture.

• Preview and print images.

• Photograph and upload digital images onto a computer.

• Import a digital image into a computer application eg. PowerPoint presentation.

What you will need

• Your digital camera• Adequate computer• Batteries (and battery charger)• Memory Storage Card• Image editing software• Printer• Tripod• Cleaning kit• Zip lock bag• Your cameras manual

Types of Digital Cameras

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Point and ShootEg. Canon Powershot, Kodak Easyshare

Mid RangeEg. Fuji Finepix

Digital Single Lens Reflex (DSLR)Eg. Canon EOS 450D, Nikon D80

Standard Controls – Compact Camera

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Shutter Release

LCD Screen

Viewfinder

Menu Navigation

Flash ControlDiopter

Self Timer

Camera Features

• Lens• Aperture• Shutter• Sensor• Storage• Flash

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Maintenance

• Keep your camera and accessories packed up and clean.

• Use lint free cloth to wipe the body of camera.

• Brushes and air puffers.

• Use your camera to reformat your memory card occasionally.

• Use the correct batteries that supplier suggests.

• Follow correct battery charging procedures.

Terminology

• Megapixel – approx 1 million pixels. 1024x1024 pixels

• Lens - A ground or molded piece of glass or plastic that focuses an image onto a CCD.

• Aperture - lens opening or lens stops expressed as an f/no. Limits the amount of light passing through a lens. Often expressed as an f-number. Eg F2.8 or F8

• Shutter - A mechanical device of a camera that controls the duration of a photographic exposure, by opening and closing to allow light coming through the lens to expose film or CCD.

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Terminology Cont.

• Memory Card – an electronic device that stores digital images.

• Exposure Compensation – Increasing the amount of light (by lengthening shutter speed, or increasing aperture). Use the +- button to increase or decrease by 1/3 steps.

• Depth of Field – The distance along the cameras axis that the image is acceptably in focus.

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Useful Links

• http://www.photonhead.com/• http://www.steves-digicams.com• www.teds.com.au • http://www.dpreview.com• Kodak Tips and Project centre• http://www.olympus.com.au/• http://www.sony.com.au• http://www.kodak.com• http://www.canon.com.au/• http://www.fujifilm.co.uk/digital/