tonylong wrote in post #15929045
The dpi/ppi figure is initially just a "tag" that is included as part of the jpg "standard" and does not affect your viewing of the image on the Web. Some software gives you a choice as to whether to view the image in the "as set" resolution but until you are actually preparing a print that's not of much use.
When outputting an image to be viewed on the Web or generic software, the most useful thing is to set your pixel dimensions to resize the image for "normal" viewing. For POTN, there is a limit of 1024 pixels at the longest dimension so that images will "fit" in most screens without the need to scroll around (although with small laptops and other devices they may need to scroll).
I don't know of a "24 bit jpeg" -- most jpegs are only 8 bits or with the newer jpeg conversions I believe you can get 16 bits per channel.
But at any rate, what you convert to depends on your use. And, some software won't handle some things as well as other software. So if from DPP you convert and save as a 16-bit tiff, well, you will preserve the max amount of quality/detail, but some software won't handle that so well. I'd experiment. If you are only viewing pics at a "normal" viewing size, then rather than a full-size tiff you could get by with a resized jpeg converted with a decent Image Quality setting and open it in your other software for viewing. To do "serious editing", though, a tiff could be your best answer, although 8 bits per channel is an alternative using a smaller file size.
The dpi/ppi figure is initially just a "tag" that is included as part of the jpg "standard" and does not affect your viewing of the image on the Web. Some software gives you a choice as to whether to view the image in the "as set" resolution but until you are actually preparing a print that's not of much use.
When outputting an image to be viewed on the Web or generic software, the most useful thing is to set your pixel dimensions to resize the image for "normal" viewing. For POTN, there is a limit of 1024 pixels at the longest dimension so that images will "fit" in most screens without the need to scroll around (although with small laptops and other devices they may need to scroll).
I don't know of a "24 bit jpeg" -- most jpegs are only 8 bits or with the newer jpeg conversions I believe you can get 16 bits per channel.
But at any rate, what you convert to depends on your use. And, some software won't handle some things as well as other software. So if from DPP you convert and save as a 16-bit tiff, well, you will preserve the max amount of quality/detail, but some software won't handle that so well. I'd experiment. If you are only viewing pics at a "normal" viewing size, then rather than a full-size tiff you could get by with a resized jpeg converted with a decent Image Quality setting and open it in your other software for viewing. To do "serious editing", though, a tiff could be your best answer, although 8 bits per channel is an alternative using a smaller file size.
Thank you for all that Tony I realy appreciate your patience, one other thing I should mention - because of the Tiff Tiff DPP files when opened In Fastone they are a 2 piece file of 46.9mb as they also contaian a thumnail, so the only way to get rid of this Is to do a very slight crop-Just the slightest edge, and save again as a Tiff Uncrompressed and 24bit, this normaly takes It down to a 6-8mb file from a 46.9(these are based on an 8.1mp size file of 3504 on the long side).
P.
