boncrayon

CMYK saves Cyan, magenta, yellow and black atributes. RGB is for red, green and blue television and computer monitors require. As is on a stage, equal amounts of red,green and blue mixes to a white lighting. CMYK combines on a printer's white substrate surface to create any color in a PMS chart.

tkhphotography Loc: Gresham, Or, not Seattle

thanx for the correction, haven't used PS in years so I shudn't have listed it..

kamoopsipooh Loc: Big Island

I agree with you on this. Since I've gotten my digital, my hard drive space has decreased tremendously and my computer slowed down considerably. I now save them on an external drive. Until I upgrade my system, Jpeg and Raw are fine by me.

Billybuzz Loc: Whiteford, MD

quote=azycray]

I understand that you need to convert to something other than RAW since there is no standard RAW file and so photo processors need a different format to do prints for you. I'm trying to understand the advantage of using Tiff since it quadruples the size of the original RAW file. Where a JPG decreases it. And as long as you keep the original RAW file you can always go back and try something different at any time in the future.[/quote]

I am a PSE9 user and the organizer recognizes a RAW, TIFF and JPEG format but not a PSD, which also saves all layers for further work. It still relates to transferring work to others. If they can't review RAW files for further work then TIFF is the way to go.[

cj Loc: Emporium, Pa

argh,, I am so fighting digital.

I still love my darkroom and my chemicals in the fridge door

it is just a matter of time I have to cave in and learn all this.

russelray Loc: La Mesa CA

Corel Paintshop Pro X4 will let you save CMYK TIFF files, as will Corel Photo-Paint X5, and CorelDRAW X5. It looks like Lightroom 3.6 will, too, if I import the CMYK color profile for it.

russelray Loc: La Mesa CA

I think it's just the opposite. Most WILL process RAW files nowadays. For example, of those I use regularly: Photoshop CS5, Lightroom 3.6, Paintshop Pro X4, Photo-Paint X5, CorelDRAW X5.

BetterPHpro Loc: NC

These two links do not work.

Billybuzz Loc: Whiteford, MD

I was talking about commercial phot printers such as Cosco, WalMart Ritz, etc.

photocat Loc: Atlanta, Ga

That is correct with the one hour type places. Digital Commerical printers should be able to print in Tiff and what ever color space you want. You just need to ask them.

Recently someone here talked about printing from RAW and I was surprised to find that it can be done. For instance , I use a printing rip Qimage and it will print from RAW as well as what ever i decide ; which for me is always TIFF.

I don't know why one would do so, but I haven't tested it to see what happens to the image when the rip does it's thing.

kamoopsipooh Loc: Big Island

I fought for a while. Got my digital last September. All my chemicals and enlargers are very dusty. Digital is just less hassle and more convenient, and in the long run, actually cheaper. I understand what you mean.

Greg Loc: Maryland

No, I went from RAW straight to JPG and RAW straight to Tiff.
When I was finished editing I chose to convert to a JPG & a Tiff file to save it in both. The JPG file was about 16 mb and the Tiff file was 102 mb's.
Well it wouldn't let me upload the RAW file so I don't know what to do now. But I'm not sure how that would help anyway. Whatever is happening is from within the Digital Photo Professional software that came with the Canon T3i[/quote]

Since you already have your RAW file, there is no need to save to TIFF unless you plan on moving the file to another editor for more editing or possibly printing. If you finished what you wanted to do in the Canon software, frankly, you are done. Save to .jpg only for the convienence of viewing on multiple platforms, uploading, etc. I wouldn't save to TIFF just for the sake of saving in that format. If you decide down the road you want to do more editing to the file in another program, export to the TIFF then. Having all those different formats of an image lying around on your computer can become an organizational nightmare as your image collection grows.

azycray

Since you already have your RAW file, there is no need to save to TIFF unless you plan on moving the file to another editor for more editing or possibly printing. If you finished what you wanted to do in the Canon software, frankly, you are done. Save to .jpg only for the convenience of viewing on multiple platforms, uploading, etc. I wouldn't save to TIFF just for the sake of saving in that format. If you decide down the road you want to do more editing to the file in another program, export to the TIFF then. Having all those different formats of an image lying around on your computer can become an organizational nightmare as your image collection grows.[/quote]

Thanks, that's pretty much the conclusion I came to based on all the replies and the further reading I did from some of the links.

arronlee

I don't think it can be a problem at all. Because we can manipulate or even convert Tiff files in any way we want. There are so many Tiff processors on line for us to choose from. Good luck.

Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)

Wow, there is a lot of confusion in this thread.


Cameras have the ability to record 12 bit raw files, 14 bit raw files lossy compressed, lossless compressed or uncompressed.

On a D800,

uncompressed 14 bit raw file is about 90mb
lossless compressed 14 bit raw is about 45mb
in camera jpg it is about 18mb
uncompressed tiff is 110mb.
compressed 12 bit raw is 32mb
lossless compressed 12 bit is 37mb
uncompressed 12 bit is 58mb

Canon offers small medium and large raw files, but generally the small and medium files are proprietary



azcray - editing a raw file is usually non-destructive, the changes are saved in a sidecar file or in a preview.


tkphotography - if there are no additional edits to the raw file, there is no reason to do raw-tif-jpg, you can go straight to jpg.


robert-photos - please read the top of this post.


azcray - if your image is satisfactory after raw editing, then there is no point in saving either tiff or jpg - generate these when you need to. As long as you have the sidecar file, or the preview, you have all your edits. If you do perform edits in Photoshop, you will probaby do this either in tif or psd. Then you would save a file that preserved all the layers - which would mean you would save a tif or psd. The jpg is an output format, not the best choice if you might edit the file down the road.


rober-photos - raw/dng files may be negatives, but psd/tif files are retouched negatives, and certainly worth saving unless you never intend on working on them.

photocat - right on!

Ragam - raw is not an image format. It is data. No color, no color space, no other information other than an embedded jpg file as a placemarker to begin editing and display previews on the camera's screen and provide histogram data. It can be lossless compressed, lossy compressed or uncmpressed. And it is only slightly smaller than a corresponding tiff file - either made in-camera or as a result of editing a raw file.

jklinc - really? compress a raw file in photoshop? Bad information. Photoshop is a pixel editor - ACR is a raw converter. You edit a raw file and output a compressed whatever. Raw files are not touched in photoshop, they are edited in adobe camera raw and cannot be "compressed" since you are saving your edits in a sidecar file. The result can be downsized as a dng file, but the original raw file is never touched. Tiff files were developed by Aldus (Publisher of Pagemaker software) as a means of archiving intermediate files - between the unedited raw file and the final output file, with edits in place and no or lossless compression. Tiff was intended to serve the publishing industry, but was later adopted for photographic, scanning, OCR, faxing and other popular graphic uses.

azcray - tiff files include processing that may increase file size - adding detail through sharpening is a big one, but other processes will add bytes as well.

Jack D - right on!

Boncrayon - jpgs can be 300 dpi, 600 dpi, just like tiff files - jpgs are highly compressed, lossy which means if you just open the file and save it multiple times you will be begint to see image degradation from data loss due to recompression. CMYK is for offset printing - RGB is for everything else. Lab is used as a working mode for editing particularly good for color correction and noise reduction.


Jeep D - you got it right!

Billybuzz - read my comments above - raw is capture, tiff is intermediary (if additional editing is required) and jpg should only be used for final output. Some print labs can work wtih tiff and some clients require un-flattened tiff files.


CJ - carpe diem!

russelray - there are two classes of software pixel editors and raw converters. Lightroom is a raw converter than can edit jpg, tiff, psd and dng files - but it's strength is converting camera raw files into editable pixel based images. CS5 and the rest have integrated raw converters, and cannot directly edit an unconverted raw file. But that is not what billybuzz was referring to.

phtocat - sRGB/jpg is the norm for volume houses. Adobe RGB/16 bit tiff is possible with some higher-end print services. However some will accept the files and down sample them to sRGB/jpg. Always good to check in advance.


Maybe this helps to clear some of the fog created in this thread.