Sparks uses traditional transparency film and a rangefinder camera.
The controls operate in the same way as film-based rangefinder cameras.
Until the 1970s the 39 mm mount was the norm for exchangeable lenses in rangefinder cameras.
They also are expensive, which is why an alternative might be a simple rangefinder camera with manual focus.
The Standard in its basic version is not a rangefinder camera.
For extreme close-up photography, the rangefinder camera is awkward to use, as the viewfinder no longer points at the subject.
Its best known model was the Paxette series of 35mm rangefinder cameras.
Whatever the case, none of the involved companies has expressed any interest in renewed production of rangefinder cameras or lenses.
It was one of the smallest rangefinder cameras ever made, together with the Contax T.
A handful of rangefinder cameras also support interchangeable lenses.