If you plan to export your efforts as a data file, and eventually to use imaging software to create a series of presentation slides, consider this. Most rolls of film come as 24 or 36 exposures, and the difference in purchase & developing costs is negligible. Consider buying 36 exposure rolls, and filling the leftover exposures with copies of your key visuals. This means you'll have extra copies for those times when you'd have to forward & reverse through a series of slides in order to make a particular point. You'll also have copies for when you misplace that critical slide . . .
OK, here are the final words in this tutorial. Pay attention, and Good Luck!
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