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What is the best image extension?
Is it Jpeg, Bmp or what.................?
Depends on what you want to do with the images - edit them, store them, email them....
Tiff as its not compressed, Ideal for editing before saving as jpeg
A lot will depend on the quality of your photos and storage space available.
If the photos are just snapshots, or storage is at a premium then Jpg is perfectly satisfactory.
If however your photos are of high quality then save as Tiff.
I save all my photos as Raw and Tiff, which is the best method, but uses quite a lot of storage space, approx 35-40mb per photo
As others have said, the different formats have different purposes.
JPEG is a compression system. It will reduce the file size of your picture to a considerable extent, but you will lose some quality. Depending on what you want to do with the picture, this will or won't be noticeable to you. If you just want to email a picture to someone, for them to look at on their computer screen, then you can send it as a fairly high compression jpeg. But if you want to produce the best, biggest print that you can get from the photo, don't compress it.
The happy medium is a low compression jpeg, which will reduce the file size without too much quality loss.
Jpeg is probably the most widely used format by most amateur photographers.
TIFF is closer to a lossless format. It will give you a much bigger file than a jpeg, but the quality will be pretty well as good as you can get. If you have a valuable picture that you want to save as a jpeg, it's a good idea always to keep a tiff version of it, too.
There are other formats, such as PNG and GIF, but these are highly compressed - mainly for use on the internet. It's best not to use them unless you have a specific reason for doing so.
As hssutton says, some people use the RAW data from their high-end digital cameras, but unless you know what you're doing (and you have software that can handle RAW files) I shouldn't involve yourself with this format.
... .tif files are ideal for editing but they're large — usually too large for use on websites or for attaching to e-mails, etc. Also they take up lots of storage space, as hssutton has mentioned.
A smaller file can be produced by saving the edited .tif file in a compressed form, either as a .jpg (if it's a photograph) or a .gif (if it's a 'drawn' image such as a cartoon, etc. which doesn't have the many subtle intermediate shades found in photographs).
Compression inevitably means some loss of quality, however, although it's possible to reduce file sizes quite drastically before the loss of quality becomes noticeable.
There are several other types of graphics files, but .tif, .jpg and.gif are the most widely used, I think.
Hope this helps.
Thanks, all forum members.
Good advice, as usual!
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