>From: "Angelo DePalma"
> For example is 2200 x 1700 ALWAYS better than 640 x 480 in a 4x6
> print? an 8x10?
If you mean from the same image file, then yes, bigger should be better.
>Second dumb question: What do the "superfine," "fine," "standard," etc.
>settings mean on my Dimage 4.0 MPixel camera? For a given dots x dots value,
>what does this setting do?
You can apply various amounts of compression to a file saved as a jpeg. The
less compression, the better the image quality but the larger the file. The
settings you mention are for different levels of jpeg compression. I suggest
using superfine all the time.
>Third dumb question: When I display photos on my computer screen and tell it
>to use "actual size" the pictures are sometimes huge. What is the
>significance of this a) in the eternal scheme of things ...
Sometimes you need to see the actual pixels, like when running unsharp mask,
for example. The reason it looks so big is because your monitor probably has
an effective resolution of 72 or 96 dots/inch, depending on how the phosphors
are spaced and how much you paid for it. So it's roughly equivalent to looking
at a print which was printed very large.
> ... and b) for purposes of getting prints.
How you display the photos on the screen has no meaning when it comes to
prints. You're probably going to print at 200 - 300 ppi (pixels per inch) but
at 'actual pixels' you're likely viewing it at 72 or 96 ppi on the monitor. To
get a very rough idea of what the print will look like set the image to display
at 25%.