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Optical vs. Digital Zoom

More and more camera manufacturers are choosing to label their digital cameras with the total (optical x digital) zoom. This is an unfortunate development and only serves to confuse consumers

 

How digital cameras work

In the past twenty years, most of the major technological breakthroughs in consumer electronics have really been part of one larger breakthrough. When you get down to it, CDs, DVDs, HDTV, MP3s and DVRs are all built around the same basic process: converting conventional analog information (represented by a fluctuating wave) into digital information...

Digital cameras FAQ

This is an attempt to answer the frequently asked questions about digital cameras...

Zoom lens explained

A zoom lens is a mechanical assembly of lens elements with the ability to vary its focal length (and thus angle of view), as opposed to a prime lens which has a fixed focal length. They are commonly used with still, video, motion picture cameras, projectors, some binoculars, microscopes, telescopes, and other optical instruments...
 

Kodak EasyShare Z710 7.1MP Digital Camera with 10x Optical Zoom

Kodak EasyShare Z710 7.1MP Digital Camera with 10x Optical Zoom
  • 7.1-megapixel CCD captures enough detail for photo-quality 15 x 20-inch prints
  • 10x optical zoom; 2.0-inch LCD display
  • Picture-enhancing features such as cropping, live histogram, and capture grid line display
  • Comes with Kodak EasyShare Software Version 6.0
  • Stores images oon SD memory cards (includes 32MB internal memory); powered by lithium battery (included)

Canon PowerShot TX1 7.1MP Digital Camera with 10x Optical Image Stabilized Zoom

Canon PowerShot TX1 7.1MP Digital Camera with 10x Optical Image Stabilized Zoom
  • 3Aa Luxeon(R) Led
  • Digital Elph Camera
  • Ultra Compact 10X Optical Zoom Lens
  • Proprietary Image Stabilizer Technology
  • Digic Iii Image Processor With Face Detection Technology & Auto Red-Eye Correction

Fujifilm Finepix S700 7.1MP Digital Camera with 10x Optical Zoom

Fujifilm Finepix S700 7.1MP Digital Camera with 10x Optical Zoom
  • 7.1-megapixel CCD captures enough detail for photo-quality 15 x 20-inch prints
  • 2.5-inch LCD screen; 10x optical zoom, 48x Total zoom
  • Movie mode at 30fps with sound in Motion JPEG (.AVI) format
  • Picture Stabilization mode; Mode Dial for ease of use
  • Compatible with SD and xD media cards

Sony Cybershot DSC-H3 8.1MP Digital Camera with 10x Optical Zoom with Super Steady Shot Image Stabilization

Sony Cybershot DSC-H3 8.1MP Digital Camera with 10x Optical Zoom with Super Steady Shot Image Stabilization
  • 8.1-megapixel Super HAD CCD captures enough detail for photo-quality 16 x 22-inch prints
  • 3.0-inch LCD display; 10x Super SteadyShot optical image stabilization
  • High Sensitivity Mode (ISO 3200) lets you shoot without flash in low-light conditions
  • Face Detection technology (up to 8 faces); Advanced Sports Mode
  • Stores images on Memory Stick Duo or Memory Stick Duo PRO media only (includes 31 MB internal memory)

Canon PowerShot SX100IS 8MP Digital Camera with 10x Optical Image Stabilized Zoom (Black)

Canon PowerShot SX100IS 8MP Digital Camera with 10x Optical Image Stabilized Zoom (Black)
  • 8-megapixel CCD captures enough detail for photo-quality 16 x 22-inch prints
  • 10x image-stabilized optical zoom; 2.5-inch LCD display
  • Face Detection technology and in-camera red-eye fix
  • 18 shooting modes, including 7 special scene modes; Print/Share button
  • Powered by 2 AA-size batteries (2 alkaline batteries included); stores images on SD memory cards (16MB memory card included)

Panasonic Lumix DMC-TZ3A 7.2MP Digital Camera with 10x Optical Image Stabilized Zoom (Blue)

Panasonic Lumix DMC-TZ3A 7.2MP Digital Camera with 10x Optical Image Stabilized Zoom (Blue)
  • 7.2-megapixel CCD captures enough detail for photo-quality 15 x 20-inch prints
  • 10x image-stabilized optical zoom; 3.0-inch LCD display
  • Intelligent ISO Control (I.I.C.) reduces image blur from subject movement and low light
  • Records full-size movies in wide-aspect VGA (848 x 480) at 30 frames per second
  • Stores images on SD/SDHC/MMC memory cards

Canon PowerShot SX100IS 8MP Digital Camera with 10x Optical Image Stabilized Zoom (Silver)

Canon PowerShot SX100IS 8MP Digital Camera with 10x Optical Image Stabilized Zoom (Silver)
  • 8-megapixel CCD captures enough detail for photo-quality 16 x 22-inch prints
  • 10x image-stabilized optical zoom; 2.5-inch LCD display
  • Face Detection technology and in-camera red-eye fix
  • 18 shooting modes, including 7 special scene modes; Print/Share button
  • Powered by 2 AA-size batteries (2 alkaline batteries included); stores images on SD memory cards (16MB memory card included)

Panasonic Lumix DMC-TZ3S 7.2MP Digital Camera with 10x Optical Image Stabilized Zoom (Silver)

Panasonic Lumix DMC-TZ3S 7.2MP Digital Camera with 10x Optical Image Stabilized Zoom (Silver)
  • 7.2-megapixel CCD captures enough detail for photo-quality 15 x 20-inch prints
  • 10x image-stabilized optical zoom; 3.0-inch LCD display
  • Intelligent ISO Control (I.I.C.) reduces image blur from subject movement and low light
  • Records full-size movies in wide-aspect VGA (848 x 480) at 30 frames per second
  • Stores images on SD/SDHC/MMC memory cards

 

50 inch plasma - 42 inch lcd - 20x optical zoom - Flat screen wall mount