It is essentially another fixed focus camera though this one offers two lens settings. It has a 35mm f3.5 (3elements/3 groups) lens but by adding a further combination of 2 elements/2 groups, it also provides a 55mm f8.5 lens. The choice is selected by pressing a red switch on the top plate; flash is also selectable via another top plate switch and has to be manually activated; there is an under-exposure warning light to prompt the photographer to use it..
The photo above shows the lens in the extended 55mm position. Shutter speeds are limited to 1/125s at 35mm and 1/60th at 55mm.
There was later a DF-10S which simply added a self-timer.