Kiev 88 TTL prism viewfinder - adapter for LR44 batteries

This ist a simple adapter for fitting 4 batteries type LR44 into the old style TTL prism for Kiev 88 camera. The old prism (the one with manual on/off switch an three metering LEDs inside) needs ~6V, but the original battery is not available anymore.

Use a few cm of 0,7mm diameter hard steel wire to build something like a spring that makes contact through the 1mm hole in the bottom of the adapter.