Welcome to Craig's PrePress

Tools for printers and print buyers.


Illusions and Perceptions

There's an old saying 'seeing is believeing', but at times our eyes can deceive us..

Colour in surrounding

The above graphic is a recreation from an article that once appeared in a Heidelberg Booklet - Basic principals of quality control. The two center green squares are exactly the same, yet the right hand one appears darker due to the surroundings.

I will be adding more of my favourite illusions here to further illustrate the idea that we can not always believe our eyes.