Alvinannen wrote:.

I shot pictures of a waterfall yesterday and used RAW format formaximum accuracty (so I hear) and when I open them in CS2, thepicture is dimensioned at like a 14" x 9" or close to that. When Iopen it in JPG, the size is like 38" x 50" or something like that.The camera is a 20D. I typically have my favorite pictures blown upto like a 20" x 30" or 24" x 36" and I don't want it to be distortedfrom the RAW size? Can anyone suggest anything or help me out..

Image (pixels) size should be the same - unless you are resizing when raw converting..

However, probably the jpg is tagged at 70 dpi or so, while the raw is tagged at 300 dpi..

Don't worry, the printer will know what to do. If you do the printing yourself, consider this a wonderfull oportunity to learn about ppi and dpi...

Alvinannen wrote:.

I shot pictures of a waterfall yesterday and used RAW format formaximum accuracy (so I hear) and when I open them in CS2, thepicture is dimensioned at like a 14" x 9" or close to that. When Iopen it in JPG, the size is like 38" x 50" or something like that.The camera is a 20D. I typically have my favourite pictures blown upto like a 20" x 30" or 24" x 36" and I don't want it to be distortedfrom the RAW size? Can anyone suggest anything or help me out..

No need to worry.......

- There is nothing wrong.- Images can be set to all sorts of resolutions.- It is the number of PIXELS that matters.- Resolutions only matter when it comes to printing.- Resolution can be reset at any time..

Try this.............

- Open both the images in question at the same time in Photoshop.- Go to Bottom Left Hand Corner and 'click' the right-pointing black triangle.- Menu pops up. Select 'Document Dimension'. Do same for other image.- Note that BOTH are same size in pixels.- Note that the 'ppi' figure in brackets is NOT the same..

To reset to the same resolution, if that's what you want.......

- Go to the 'Image' menu and select 'Image size'. A dialogue opens.- Note that all sizes/resolutions are shown you can change units if you wish.- Change resolution in resolution window...[300 ppi suggested, but your choice.]- Make ABSOLUTELY SURE that the 'Resample image' option is UN-checked.- Then hit OK.- Repeat procedure for the other image, matching resolutions..

Now when you examine the image's Pixel Dimensions at bottom left of image windows, they will still be the same, but with changed resolution values in brackets .... (now both 300 ppi)..

Try a right click in either/both images and select 'Print size'. If everything has gone according to plan your pictures will display at SAME SIZE for both image versions..

Note that if your RAW has been rendered into Photoshop at 16-bit depth, (the ACR default) it's 'Document size' as displayed in the image info field will be twice the size of the Jpeg version, which is only 8-bit.Regards,Baz..

I will not be printing by myself as I do not have a printer just yet! But would you be willing to offer any further advice on what a great dpi and ppi setting should be. Thanks again...

Alvinannen wrote:.

I will not be printing by myself as I do not have a printer just yet!But would you be willing to offer any further advice on what a greatdpi and ppi setting should be. Thanks again..

Well, there aren't any settings that are "great" exactly, because what is an appropriate resolution varies with the size of print you are intending to make..

However, many people choose to *store* images at 300 ppi as a default, at least until such time as they need to update the value for a real printing situation. This is because 300 is the resolution most often used by the printing and publishing industry for magazines, etc..... [therefore "Print size" from right-click indicates the "on the page sizing" right on the screen.]Regards,Baz..

Alvinannen wrote:.

But would you be willing to offer any further advice on what a greatdpi and ppi setting should be. Thanks again..

There is no such thing. DPI value basically has no value(*). It's like tapeing a little tag next to your negative mentioning the print size. It's not only that you can change it any time, but it has no impact on the image AND it can be ignored by the printer.__.

(*) yes, in some situations it makes good practice to keep consistent dpi values. Not the case here ..