Different kinds of software are designed to read different file format types, eg MP3 for music, word documents for text,etc. TIFF, JPEG, RAW, PSD, are some of the most commonly used file formats which can be read by photography software like Photoshop.
Contains all the data, is a true original, has better resolution and color,is easy to batch process, is non destructive and reversible, has “floating” white balance, easier to correct for color and exposure. Most professional photographers are shooting the RAW format. You should shoot in raw anything you care about.
RAW uses a lossless compression and produces files smaller than TIFF file format. RAW format is not standardized amoung manufacturers. Adobe introduced DGN (digital negative) to try and standardize the RAW format so that software in the future will be able to read them.
JPEG is standard for web use, is compressed so will take up a lot less space in your hard drive, can fit a lot more images on a flash card or micro drive, faster to download and upload, it takes any camera less time to process when shooting, small enough to e-mail.
Harder to batch process changes, adjustments to color or density are destructive and may degrade the file, not all the original information- the camera throws out a lot of information when it compresses the photo, harder to get and correct white balance. More compression = more “lossy” or subject to degradation of the file. A 18mb file can be compressed to 1mb without a lot of quality loss, beyond that get jpeg artifacts. Repeatedly opening, making changes and saving leads to degradation.
The most universally recognized image format. Lossless ie they can be opened repeatedly, edited, and saved without degradation.
Is photoshop’s proprietary format. While many highend graphics and photo software will read a psd, many labs and consumer level photo software will not . PSD format is uncompressed and is smaller than TIFF. Supports layers created in Photoshop.
Need ”acrobat reader”, which is a free download. Can make small files, can reproduce documents created in a wide array of software. Can email a PDF to someone who doesnt have photoshop.
Size Comparison – all 8 bit
RAW 7.51 MB (mega bytes) unopened, 23.4MB opened.
TIFF 23.4 unopened , 23.4 opened.
JPEG 3.2 MB unopened , 23.4 MB opened