Digitise

A summary page coming soon....

On this site we look at:

Modern file formats can seem enormous (video, high-resolution photos, sound recordings). Should you store these big files or compress them? It all depends what you want the file for.

For example image resolution can vary widely and so does the file size. Image resolution is often measured in ppi or pixels per inch, also called dpi, dots per inch. If you want to view images on screen, then 120ppi is fine (or even less), but print really needs 300ppi for a nice clear picture.

Slightly off topic for TDFT, but some fun: make modern photos look like old ones here and it's free (not even any ads). Most of you will want to click the "English" option at the top right first :-D

Prices of MFDs (Multi-Function Devices = printer + fax + scanner + photocopier) have fallen to the point that they are affordable for the home. or you may choose to buy a dedicated scanner in addition to your printer (but that is a lot of desk to take up for two devices that could be rolled into one).

Check the number of dots per inch (dpi) that it scans at. Pay no attention to 'interpolated' dpi. This is when the software guesses values between pixels to create supposedly higher resolution images. Pay attention to the optical (actual) dpi.