Supercheap Hybrid Novelty and Oddball Digital Cameras

While the vast majority of digital cameras fall into the above categories, there are other types and kinds that may interest you. Some are very cheap, as low as 20 bucks, the digital equivalent of film's disposable single-use cameras. Others are combinations, such as an instant film camera that also takes digital shots, an MP3 player that doubles as a camera, or a pair of binoculars with a built-in digital camera. Then there are the novelty items with a variety of sizes, shapes, and...

RGB Formulas

All color models use mathematical designations to represent the different variations of color. RGB uses 256 (0 to 255) steps for each color. (That number should look familiar to anyone who knows the basics of computers, because 256 points of data is the amount of information inherent in 8-bit data. Since RGB has 8 bits of data for each of the three primary colors, it is a 24-bit color model, because 3 x 8 equals 24.) Therefore, red can have a value of 0 to 255, as can green and blue. So, white...

Tips from eBay Experts

EBay.com is the number one auction Web site. If you are planning to sell on the Internet, it's likely you'll use eBay at one time or another. But even if you don't, what applies to photos for eBay can also work for other online product shots. Jim Griffith, Dean of the traveling eBay University and author of The Official eBay Bible (Gotham Books 2003), suggests that when you are editing your photo, you don't want make the item look better than it really is (such as brightening an old carpet's...

Manual Focus

Many digital cameras have an option called MF, or manual focus. It's especially useful when autofocus won't lock in on the subject you want to shoot, or when you wish to control depth of field by focusing the lens in between two areas or subjects. Some cameras activate manual focus via a menu and the four-way jog button or mode subdial, while others have a button or switch that toggles between autofocus and manual focus, and a focusing collar around the lens that you turn until the subject...

Resize or Shoot Small

Most digital cameras can be set to take photos at different sizes, with smaller resolution settings designed particularly for the Web (typically, 640 x 480 and or 1024 x 768). However, we seldom use this option, because we worry about changing our minds once we see the picture. What if the photo is really good We wouldn't want to limit our options of how we could use it. When dealing with ecommerce and business Web sites, the ability to repurpose a photo (use it in more than one way) becomes...

Assessing Your Photographic Personality

The single most common question we hear about digital cameras is, Which one is the best On the surface, it's a fair question. After all, at the time of this writing, literally hundreds of different digital camera models are vying for your dollars. It's a given that certain cameras are better designed, better made, or better equipped than the competition. Therefore, the logic goes, one brand or model should stand out as the very best. The fact is a camera that might be fabulous for one person...

Summary

This chapter covered many issues concerned your digital camera's color tools. Some of the key points included the following Digital cameras are not smart and will photograph exactly what they see, which is not exactly the same as what the human eye sees, especially when it comes to color. Every light source has a different impact on how a camera captures the color of a scene, creating photographic color shifts. As a rule, you can trust the auto white balance setting in most situations but not...

ADC and Your Digital Cameras Bit Depth

It may come as a surprise to learn that all image sensors are analog, not digital, devices. In fact, the entire universe, except the world that exists inside a computer, is analog. Including film. Digital's sole inhabitants are zeroes and ones, period. So how do you get digital data from an analog capture device That's what the ADC analog-to-digital converter does inside your digital camera and in fact, the reason why it's even called a digital camera . All digital cameras have an ADC chip...

What Happens to All Those Data Bits

If 12, 14, and even16 bits per primary color sounds like an awful lot of data to you, you're right. It is. See Table 1-1. If left intact, all those data bits would inflate image file size and considerably slow down in-camera processing. And it wouldn't really be of much benefit when you view the pictures. The human eye is capable of discerning approximately 12 million different colors, which is why 8-bit color is considered photo-realistic. What's more, only a handful of image-editing programs,...

Charles Rodriguez Pc Magazine

In summer 1991, we spent a weekend with Fred Shippey and Katrin Eismann at the soon to be opened Kodak Center for Creative Imaging CCCI at Camden, Maine, discovering the amazing potential of the 25,000 prototype Kodak DCS-100 digital camera and a new image-editing program called Photoshop. Since that time, we have been indebted to numerous industry experts, associates, and friends starting, of course, with Fred and Katrin. Other mentors and associates who have always been generous with their...

PC Magazine Guide to Digital Photography

Daniel Grotta and Sally Wiener Grotta PC Magazine Guide to Digital Photography 10475 Crosspoint Boulevard Indianapolis, IN 46256 Copyright 2004 by Daniel Grotta and Sally Wiener Grotta Published by Wiley Publishing, Inc., Indianapolis, Indiana Published simultaneously in Canada Manufactured in the United States of America 10 987654321 XX XX XX XX XX No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical,...