JPEG: This is the best known of all image files. JPEG files are compressed quickly in the camera, and this results in loss of detail and quality. Some cameras will have options for different quality levels of JPEG. This means that the better the quality that you require, the less compression the camera will perform on the original photograph.
TIFF: The most commonly used industry-standard file format. These file formats are usually uncompressed, as as a result they offer for extensive post processing. They are much bigger files.
RAW: Raw files are generally available on advanced compact cameras and DSLR’s and quite simply put. This option is preferred by professional photographers. The best quality image file is captured.
DNG: This file format, created by Adobe, is an attempt to create a standard raw file format across all manufacturers and cameras. This does add another step in the post-processing workflow, which means more time is required. Possibly safer option long term, to guard against inability to open or access files in future.
PNG: Made in the 90s as an improvement for GIF file format, PNG files are ideal/better for use on the internet. The ability to maintain transparency, which is ideal for things like overlays or logos.
GIF: Like PNGs, GIF files are ideal for use on the internet. The limitation of GIF files are that they can only contain a maximum of 256 colours, and therefore are not the best choice for photos, but rather images with a limited colour palette.
BMP: BMP’s are large file sizes as color data is saved in each individual pixel in the image without any compression. Can be used for printing as images are saved in high quality format.
PSD: This file type is what Adobe Photoshop uses as a default to save data. This gives far greater flexibility and the ability to fine tune an image as layers can be added. Ability to manipulate the image extensively on separate layersOnce the image is ready it can be re-saved as any other file format.