Telescope, Magnifying Glass and Microscope all in one: the emoscope.

This little gadget will not only fit into the smallest pocket – together with its case it’s only 6.5 cm long and 3 cm in diameter – but also weighs a mere 35 grams. Incredibly, it combines the functions of four different optical instruments.[MSOffice2] By using various combinations of its four component elements you can make it into
– a microscope with a magnifying factor of 25 or 30
– a magnifying glass with a factor of 5, 10 or 15
– an adjustable (focus from 20-150 cm) telescopic magnifier with a factor of 3
– a telescope with a magnifying factor of 2 (closest point 1 m).
The plexiglass base – which has to be set up for the microscope option – acts as a container for the object you wish to examine (if it’s small enough, that is: for example, if your scientific tastes lie in that direction, you could try to look a live house-fly in the eye for as long as it takes to find the exit).