Posts Tagged ‘TIFF’

Digital Photography -Which image file format should you use?

You are able to create digital pictures in three different types of file formats: JPEG, TIFF, and RAW. Each file format has its good qualities and bad qualities. It is the photographer’s choice to see which file formats to use that works best. If you want to send an image through e-mail, the best format would be JPEG. If you like creating large prints and like optimizing the color that best suits you, shoot in RAW, or you may prefer TIFF if you are working with an advanced desktop publishing software. What are these formats and what do they stand for?

JPEG is an acronym for Joint Photographic Experts Group; this is the gathering of photographers who met to discuss formats. JPEG is used a lot in e-mails because it is a compressed image file format and has a smaller size in megabytes unlike the other formats. A disadvantage is if the image is compressed too much the photo quality may seem noticeably damaged.

TIFF stands for Tagged Image File Format. This is a file format that was created in the 1980’s as the standard format used across multiple platforms. Once the TIFF was introduced many people have improved upon it and now there are around fifty variations. Also the TIFF format can handle color depths between 1-bit to 24-bit.

RAW files are unprocessed images that are generally referred to digital negatives. RAW mode doesn’t compress the images and another disadvantage of RAW is that it uses a lot of memory on your card. An advantage is that since this format is unprocessed you can have more control over color corrections and processing on the computer. If you plan on making large prints this is the format to use. More expensive D-SLR cameras have this feature and come with editing software allowing you to open RAW files. Then you are able to edit them and save them to JPEG or TIFF file formats.

Now having a better understanding of file formats you are able to be more creative in your digital photography.

Nathaniel Johnson has been a photographer with over of eight years of experience in wildlife and landscapes. To find more information on <a href="http://photohalo.com ">digital photography</a> come visit <a href="http://photohalo.com">photohalo.com</a>

What Are Some Of Those Digital Features?

Almost everyone has a digital camera now. But what do some of those terms mean? We all know what the full automatic setting is, it means we just point and shoot. But what about some of those other terms.

Optical Zoom

Optical zoom refers to the physical lens and its capability to optically magnify the subject.Very useful when you can’t physically get any closer to your subject or you want to take the shot while remaining unnoticed.

Digital Zoom

Digital zoom is digitally cropped, giving the impression of an optical zoom. Which may reduce the image quality.

Macro Focus Mode

Macro Focus Mode, overrides the general use of auto focus mode so you can take extreme close ups of your subject. Like flowers, bugs, or other items that you want to only in the frame.

ISO Setting

ISO setting for digital cameras refers to the image sensor’s sensitivity to light. The lower number the better for bright sunny areas the higher number is for lower light situations.

Shutter Speed

A fast shutter speed can catch a drop of water coming out of a facuet, a slower shutter speed may require a tripod to get a good sharp image.

Aperture

The aperture is the opening in the lens that controls the amount of light reaching the image sensor. This is referred to the f-stop. The aperture setting directly effects the depth of field. A large aperture setting (a smaller f-stop number) has a shallow depth of field, a shallow depth of field is one in which objects in front of and behind your subject’s focus point will be out of focus. A smaller aperture setting (a higher f-stop setting) has a greater depth of field. A greater depth of field is when your subject and everything in front of and behind will be in focus.

Continuous Mode

Continuous mode is the capability of taking a number of photos in just a few seconds, which is great for sporting events or maybe those first steps of a child.

File Formats

Understanding the file formats can sometimes be confusing, the JPEG (Joint Photographic Experts Group) is used for most point and shoot cameras and is an option in most cameras. TIFF (Tagged Image File Format) takes up alot of media storage space compared to the JPEG method.

Mega Pixels

In digital photography the more mega pixels the higher the image quality, it also usually means a higher price tag. What is a mega pixel? A mega pixel is one million pixels. Each pixel is a tiny colored dot of data.
Some guidelines to print quality in relation to mega pixels is:
1 mega pixel produces a good quality 4×6 print
2 mega pixel produces a good quality 6×8 print
3 mega pixel produces a good quality 8×10 print
5 mega pixel produces a good quality 10x 12 print
10 mega pixel produces a good quality 14×20 print
These are just guidelines, and if you do your printing at home you may get by with a 3 mega pixel camera for a nice 8×10 print on your home computer printer.

Storage Media Types

There are a number of different storage media types but the most common ones are compact flash, Smart Media,and Sony’s Memory Stick.

Photo Printing

When printing a photograph at home the printer paper and ink have a lot to do with the actual print quality.

One of the best things to do with your digital camera is to take the time to read the owner’s manual from beginning to end, keep your camera handy to experiment with each function and setting as your reading so you’ll know where and what they do. You’ll soon be out taking great shots and experimenting with each function.

Beth Meier is writer and senior administrator for <a href="http://www.americasbargainstore.com/">AmericasBargainStore.com</a>, which helps to find <a href="http://www.americasbargainstore.com/">online bargains</a>.

What every photo researcher ought to know about buying digital stock photos

Your Step-by-Step Guide to Buying Digital Stock Photos
 
If you’ve been a photo buyer for your magazine or site any length of time, you probably realize how much the photography industry has changed.

Many professional photographers are now using high-quality, high-res digital cameras instead of film for their stock photos. Read below to find out the easiest way to locate and purchase digital stock photos for your magazine, brochure or Web site.

Where to Buy Stock Photos

One way to find stock photos quickly and easily is through a stock agency Web site. Stock agencies provide several benefits.

- They offer a large inventory of stock photos by many different photographers.
- You can choose from a variety of styles, colors, photo sizes and quality.
- With digital stock agencies and portals, you can normally buy right from the site without having to put in a request for certain images
- You conveniently have 1,000s of stock photographers in one location instead of having to sift through individual photographer’s stock photo submissions sent by parcel post. As you know, postal mail doesn’t come with a search box!
- With a stock agency or stock image portal, you can save time because they offer uniform buying guidelines, download methods and search capabilities no matter which photographer you choose.

 Individual Photographers

Another way to find digital stock photos on the Web is to contact a freelance stock photographer directly.
You might need to work with a photographer one-on-one if …

a) you need stock photos for a specific location or with a specific theme, and are unable to locate the photos you need, or

b) you’d like to assign certain projects to one photographer who specializes in that field. It is even possible to work with some stock photographers by setting up an “on spec” relationship.

This means that you give the stock photographer your photo needs and he/she shoots images with the understanding that you may only purchase one or two (or none) of the stock images.

I have worked with several textbook photo researchers this way and I’ve found that the images the photo buyer didn’t use many times sold at a later date to a different photo researcher.

Working “on spec” may be easier to set up than you may think, especially if you catch the stock photographer during a slow photo period.

“On spec” is many times a win-win for the stock photographer and the stock photo researcher.

This is just one example of how the Internet makes it possible to work with one or many photographers and transmit your photos quickly by email or by download from a photographer’s Web site.

Quality and Size of Digital Photos

Probably one of the most confusing aspects of buying digital stock photos is how to determine the size and quality of an image.

When you receive photo submissions by postal mail, you have the actual photo print or transparency in hand, making it easy to determine if the quality and size are adequate for your project. However, with digital photos it’s not always that easy.

Formats Used in Digital Stock Photography

JPG (or JPEG) format, which is one of the most popular formats for digital stock photos, enables the photographer to reduce an image’s size tremendously for emailing to photo buyers while retaining the size and quality needed for most magazines and publications up to even a two-page spread.

Most digital stock images are displayed as thumbnail images, and then high-resolution (high-res) images are emailed at the photo buyer’s request.

Warning: A major drawback of using JPG digital files for photos is, if the photo is re-saved over and over it will lose some digital information each time it is saved. So, it’s a very good idea to save a JPG image as a Tiff file as soon as you receive it. This way you can save it without sacrificing quality.

 Fortunately, most stock photo agencies require that images be of top quality before they’re accepted. This eliminates your worries about the quality of images in many cases, but always make sure the size of the stock image fits your needs before making a purchase.

Model / Property Release

If you plan to use your stock image for advertising purposes, or for some editorial use, you may need a model or property release. Check with your magazine or client and do some research to make sure which images will need a release.

Licensing Agreement for Digital Stock Photo Usage

Also, read the photographer’s licensing agreement carefully so you’ll know how, where and the length of time you can use the photo.

The general rules of usage still apply when buying stock photos on the Web. That’s another reason to work with a dependable stock agency site or directly with a professional stock photographer.

Use these tips to help locate great digital stock photos easily, and when you need them!

Bob Pardue is a professional stock photographer located in the Southeastern USA. His stock images have been published in numerous books, reports, and publications in the USA and abroad. www.parduephotos.com

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