Home » Arts and Entertainment » Photography

Digital Camera Basics Made Simple

Aug 17, 2007
Digital cameras can be perplexing to many beginners. When shopping for a digital camera it is very likely that you will encounter terms like white balance, pixel, ppi and dpi mean and how they affect image and print quality.

You may be probably expected to know the difference between things like optical zoom and digital zoom as well as the advantages and disadvantages between storage formats such as Compact Flash (CF), Microdrives, Sony Memory Stick, Secure Digital (SD), Multimedia and camera interface technologies such as USB 1.1, USB 2.0 and Firewire IEEE 1394. Lets make things simple and go to the basic things you actually need to know.

Pixels

A pixel is a abbreviation of the term PIcture ELement. Digital images are basically made up of small squares, just like a tile mosaic on your kitchen or bathroom wall. Are the more pixels the better? For viewing on the internet, resolutions of 640 X 480 is enough. For a typical 4R photo, you need a resolution of 1200 X 1800.

Difference Between Digital Zoom and Optical Zoom

Most cameras have both optical zoom and digital zoom functions. Optical zoom works just like a zoom lens on a traditional film camera. The lens changes focal length and magnification as it is zoomed. Image quality is high throughout the zoom range. Digital zoom simply crops the image to a smaller size and enlarges the cropped portion to fill the frame again. Digital zoom always results in a considerable loss of quality.

The Storage Wars

There are quite a few different memory cards used in different digital cameras.

Compact Flash (CF) - The original memory card. Somewhat larger than the others, but used on all high end DSLRs. Available in capacities up to 2GB.

Secure Digital (SD) - Very small - about 24mm x 32mm and 2mm thick. SD cards have a built in write-protect switch to prevent any unintentional removal and certain encryption capabilities. This may be of very little interest for most digital camera owners.

Multimedia - Same size as SD but with less features and no encryption capability. There are some that can be used in some SD cameras but they aren't 100% compatible with SD cards in all applications.

Memory Stick - It is introduced by Sony and used only by Sony cameras.

XD - Developed and used by Fuji, Olympus and Toshiba - even smaller than SD. 20mm x 25mm by 1.7mm thick

There's really no reason to pick a camera with one brand over another unless you have multiple cameras or other devices which may also use the same memory cards. Then it is more convenient if they can share the same cards.

Buying a Digital Camera

Some magazines advertise cameras at low prices yet they charge high shipping cost or they may tell you it is out of stock. Of course they have a more expensive model for you. Shop for cameras only from reputable dealers. At least they probably have a more responsive customer service.
About the Author
To find out more information on the Best Digital Cameras and digital cameras buying guide, visit The
Digital Camera Explained
.
Rating:
Please Rate:
(Average: Not rated)
Views: 196
Print Email Report Share
Article Categories
    • Classic Cars
    • Motorcycles
    • Recreational Vehicles
    • SUVs
    • Trucks
    • Vans
    • Branding
    • Business Opportunities
    • Careers and Jobs
    • Corporate
    • Customer Service
    • Direct Mail
    • Entrepreneurship
    • Ethics
    • Financing
    • Franchising
    • Home-Based Business
    • Human Resources
    • Import and Export
    • Leadership
    • Management
    • Market Research
    • Marketing and Advertising
    • Negotiation
    • Network Marketing
    • Networking
    • Organizational
    • Presentation
    • Project Management
    • Public Relations
    • Small Business
    • Strategic Planning
    • Team Building
    • Telemarketing
    • Training
    • Data Recovery
    • Databases
    • Games
    • Hardware
    • Networks
    • Operating Systems
    • Programming
    • Security
    • Software
    • Spyware and Viruses
    • Ask an Expert
    • College and University
    • Home Schooling
    • K-12
    • Languages
    • Online Education
    • Psychology
    • Accounting
    • Credit
    • Currency Trading
    • Debt Consolidation
    • Insurance
    • Investing
    • Leasing
    • Loans
    • Mortgage
    • Mutual Funds
    • Personal Finance
    • Stock Market
    • Structured Settlements
    • Taxes
    • Wealth Building
    • Coffee
    • Cooking
    • Gourmet
    • Recipes
    • Wine and Spirits
    • Acne
    • Aerobics
    • Alternative Medicine
    • Beauty
    • Cancer
    • Cosmetics
    • Depression
    • Diabetes
    • Diseases and Conditions
    • Fitness Equipment
    • Fitness
    • Hair Loss
    • Heart Disease
    • Medicine
    • Men's Health
    • Muscle Building
    • Nutrition
    • Skin Care
    • Supplements and Vitamins
    • Weight Loss
    • Women's Health
    • Yoga
    • Arts and Crafts
    • Babies
    • Collecting
    • Elderly Care
    • Genealogy
    • Hobbies
    • Parenting
    • Pets
    • Pregnancy
    • Woodworking
    • Feng Shui
    • Gardening
    • Home Appliances
    • Home Security
    • Interior Design
    • Landscaping
    • Affiliate Programs
    • Article Marketing
    • Auctions
    • Audio
    • Banner Advertising
    • Blogging
    • Broadband
    • Domain Names
    • E-Books
    • E-Commerce
    • Email Marketing
    • Ezines and Newsletters
    • Forums
    • Internet Marketing
    • Link Popularity
    • Pay-Per-Click
    • Podcasting
    • RSS
    • Search Engine Marketing
    • Search Engine Optimization
    • Security
    • Social Media
    • Spam
    • Video
    • Viral Marketing
    • Web Design
    • Web Development
    • Web Hosting
    • Copyright
    • Cyber Law
    • Intellectual Property
    • National, State, Local
    • Patents
    • Regulatory Compliance
    • Trademarks
    • Buying
    • Selling
    • Baseball
    • Basketball
    • Boating
    • Cycling
    • Extreme Sports
    • Fishing
    • Football
    • Golf
    • Hockey
    • Hunting
    • Martial Arts
    • Running
    • Scuba Diving
    • Soccer
    • Swimming
    • Tennis
    • Dating
    • Divorce
    • Marriage
    • Weddings
    • Astrology
    • Buddhism
    • Christianity
    • Faith
    • Hinduism
    • Islam
    • Judaism
    • Meditation
    • Metaphysical
    • New Age
    • Cable and Satellite TV
    • Cell Phones
    • Communication
    • Gadgets and Gizmos
    • GPS
    • Satellite Radio
    • Video Conferencing
    • VoIP
    • Addictions
    • Coaching
    • Goal Setting
    • Motivational
    • Stress Management
    • Time Management
    • Clothing
    • Electronics
    • Fashion
    • Gifts
    • Jewelry
    • Causes and Organizations
    • Environment
    • History
    • Holidays
    • Men's Issues
    • Nature
    • Philosophy
    • Politics
    • Women's Issues
    • World Affairs
    • Air Travel
    • Camping
    • Cruises
    • Destinations
    • Outdoors
    • Article Writing
    • Book Reviews
    • Copywriting
    • Fiction
    • Non-Fiction
    • Poetry
    • Quotes
    • Screenplay
    • Tools and Resources