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Photography Question 
Bonnie Copeland

what resolution to store digital images

What resolution would be best to store digital images for family purposes? I know that most home printers can do 300 dpi...would this be best, considering future improvements?

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4/15/2002 8:13:02 PM

doug Nelson   You answered your question. 300 is fine, and anticipates any advances in printer technology and also gives you the option of going to a service bureau for a dye sublimation print for a really important one. CD's are cheap; why not archive at the best resolution?

Before you archive, go into the page of your imaging software that lets you set the image size. DO NOT throw out any pixels by "resampling" or whatever your software calls it. This way, you can pop that CD into a printer years from now, and it should print out at the size you want.

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4/16/2002 10:22:58 AM

Robert Torrence  
  Snoop Dogg at the Century Club
Snoop Dogg at the Century Club
Shot with a Nikon D1X, ISO 125, 85mm @ F4 with the Quantum X2 Flash
© Robert Torrence
Nikon D1X Digital ...
When you say save it depends on what you use them (output) for. If you shoot in .jpeg then save them in the raw .jpeg form straight from the camera to cd. You will not loose any data if you as soon as you load them to the computer cut the cd then. Do not let the imaging program do anything. When you are ready for the photo to resize, print, email or anthing else it will be just like it came from the camera. It also saves space on the CD and the computer so when you go to pull it up it loads quicker.
If you tell the imaging program to save as a .tif then you will not loose any quality as well but the file will be multiplied like a 2.7mb file will now be a 17mb file and most cameras shoot at 72 dpi in jpeg mode so that makes the size of the photo larger so when you change to 300 dpi the photo will automatically get smaller. When you save you should be mindful of a number ot things that happen to your file. Find what works for you and stick wuith it.

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7/2/2002 3:21:22 PM

Diane H. Inskeep   I have a question about your information. You mention shooting in raw jpeg form. I have Canon D60, and I have been using the large jpeg setting. I have wondered if the 72 dpi (which I guess is in the camera?) can be enlarged? I would rather have all of the photos at the 300 dpi and burn them onto a cd that way incase I am printing them. If I am doing a large number of photos from a wedding, there must be a quicker way to get the images to cds....and if I save as both tiff and jpeg, the images won't fit on one cd. Is there software that will burn to multiple cd's and give an index? thanks Diane

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1/25/2003 9:03:43 PM

Wayne Attridge   There is no need to save your photos as both TIFF and JPEG files. TIFF (Tagged Image File Format) saves the image raster data, which is as a bitmap, meaning all of the data in the photo is saved in the file. JPEG (Joint Photographic Experts Group) is a photo compression scheme that is used to decrease the file size for pictures, such as for display on a Web page, as in the Photo Contest. It is not intended for archives when you may want to alter the image some time in the future. JPEG compression discards some of the colour information in the picture in order to make the file smaller. When you open a JPEG file in Photoshop or Photopaint, etc, manipulate it and resave it, there is more loss in the final file. This does not happen with TIFF files. The data is there when you open it and remains when you resave it. Converting your JPEGs to TIFFs doesn't really accomplish anything, as the JPEG file cannot be uncompressed like a Winzip file in order to restore the image to TIFF quality. JPEG threw some of the data away and it is gone forever. If you take and store your photos as TIFF files from the start you can do what you want to them at a later date, including conversion to JPEG, and always retain the original TIFF. I hope this is a help to you and not too confusing or long winded.

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1/25/2003 10:56:41 PM

Diane H. Inskeep   My camera only gives me jpeg or raw options when taking the photos. So, if I have to take it in jpeg...what is the most streamlined way to get it converted to tiff and burned to the cds? I have not tried much with the raw option, as I can't use the raw option in much of the software I I need to learn more about using raw formats...and even so, do I save it in raw or again convert to tiff to save? Thanks for your help....the more I learn, the more I don't know.....

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1/25/2003 11:06:43 PM

Wayne Attridge   If you shoot in JPEG, use the largest (file size) option you can afford with your memory capacity. Download these files to your computer and save them on a CD. Don't bother converting the files to any other format. You can do the very same thing at a later date with your original files. If you shoot them at 72 dpi, you cannot make them 300 dpi resolution with Photoshop, etc. If you want 300 dpi resolution you have to shoot at 300 dpi. Does that help? If not, we'll try again until you have it figured out.

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1/25/2003 11:21:06 PM

Robert F. Walker
BetterPhoto Member Since: 8/24/2004
  Wow- this is the part of digial I have a hard time with. Resolutions. JEPG, TIFF, RAW, dpi, etc. I feel like I need to be a math major! Is there a simple way to understand all this tech stuff, so I can be sure when I download images on my computer, I may still be able to make prints that I can market. 4x6, 5x7, 8x10

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7/16/2006 8:54:04 AM

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