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01/25/2005 10:11:44 PM · #1 |
I was wondering if someone could let me in on which file type is best?
Also, when you close PS and save a JPEG it ask for the image quality or file size, ?
While I'm posting a forum I figured I throw in a couple of pics, you can comment if youd like.
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01/25/2005 10:57:12 PM · #2 |
There are two types of TIFFs: 8-bit and 16-bit.
A JPEG file, saved at the very highest quality setting (i.e. the least amount of compression) will be close to the quality of an 8-bit TIFF, only much smaller.
A 16-bit TIFF will be even larger.
However, you'd be hard pressed to see any difference just looking at the three side by side on your computer monitor. But if you are going to edit any of them, you will get far better results if you can edit a 16-bit TIFF and remain in "16-bit mode" for as long as possible. (if you have to save to jpeg to distribute the file or to send it to a print shop, make the conversion to jpeg the last thing you do, or at least, as late in the process as possible)
Also, if you save a tiff, then load it back into the editor and save it again, there is no degradation in the quality of the picture.
However, if you save a jpeg, load it back in and save it again, the quality will have suffered somewhat due to the jpeg compression algorithm.
So the only real advantage to an 8-bit tiff is the ability to save multiple times.
The advantages of 16-bit tiffs are much greater - but only if your editor supports 16-bit editing.
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01/25/2005 11:00:37 PM · #3 |
if you think you ever want to sell your shots, use tiff or raw.
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01/25/2005 11:13:34 PM · #4 |
JPEG for the internet. TIFF for your computer. Break these rules as necessary.
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01/25/2005 11:14:35 PM · #5 |
| Thanks, how can I tell if I can support a 16 bit tiff, I use Photo Shop, if that tells you anything? |
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01/25/2005 11:21:35 PM · #6 |
Originally posted by RockBruise:
Thanks, how can I tell if I can support a 16 bit tiff, I use Photo Shop, if that tells you anything? |
You need Photoshop CS to support 16 bit. PS 7 and below will only support up to 12 bit.
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01/25/2005 11:24:37 PM · #7 |
| One more ?, Do I have to select the 12 0r 16 bit or does it automatically save it as that, By the way, I should be getting PS CS real soon and can't wait, is it pretty good? |
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01/25/2005 11:51:02 PM · #8 |
I love CS. Great stuff...still learning of course and had it over a year. It is a non stop thing.
The 16 bit thing depends on how it comes out of your camera. If you shoot RAW when you open it in PS CS it will give you the acr (adobe camera raw) converter and you choose to have it in 8 bit or 16 bit (choose 16 ALWAYS). I have started converting my shots that I think will be prints to a larger format, you'll understand that when ya get it). Good to get the book by Bruce Fraser about RAW to learn this. Great read and exercises. If you want to print, you will inevetibly get to RAW.
I thik the jpg's come out as 16bit, depending on your camera. Not too sure, since I haven't shot in it at all for over 6 months. But I am sure that when you save it, it will have to be TIFF or a PSD file, etc. NO jpg...that is ONLY 8 bit.
Message edited by author 2005-01-25 23:51:50.
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