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SciArt-L Discussion List-for Natural Science Illustration- <[log in to unmask]>
MJ Spring <[log in to unmask]>
Tue, 17 Nov 1998 08:33:11 -0500
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SciArt-L Discussion List-for Natural Science Illustration- <[log in to unmask]>
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Morning Sciarts,

Here is a hint that my grad student just picked up from our slide-making
department here at UConn.  It will help keep the file size small.  Best, mj

>When you use powerpoint and want to insert a graphic (e.g. from adobe
>photoshop), you should use the *graphic* package to change a few of the
>file features of the jpg or tif (or whatever format you are using) before
>you insert the image into your slide presentation:
>(1) because the film recorder prints to the film at a resolution of 4000
>(yes, four thousand) lines, it is sufficient to save your work with a
>resolution of only 100 dpi (this process is called resampling).
>(2) rescale the image to the appropriate size (about 5 inches by 5 inches)
>(this is resizing).
>This way, when you insert your image, the film recorder won't try to resize
>it separately (typically, powerpoint will only resize the inserted image
>and not resample it, but the film recorder resamples it separately).
 If the images are very high dpi.....the film
>recorder cannot process the slide image fast enough, causing the machine to
>time out.  Resampling and resizing in photoshop or some other package will
>alleviate these potential problems.
>Also remember that while your palette in photoshop consists of 256+ colors,
>powerpoint itself only has a (lame) palette of 94 colors.  Maybe this
>"feature" will be improved in Office 2000 (currently in beta testing).

MJ Spring, Scientific Illustrator
University of Connecticut
Biology, U-42
75 Northeagleville Road
Storrs, CT 06269
Fax  (860)486-3943