I think OF stands for overflow. In the ohm range is that a resistance higher as the meter can measure like an open circuit.
Just to be sure, did you remove the batteries while measuring the resistance ? If not remove them and measure again.
The high voltage capacitor is labeled photo flash. The maximum rated voltage on it is 330 volts so it wont kill your multimeter but you will get a nasty shock from it if you touch it.
The big black electrolityc capacitor near the battery compartment is the flash cap. That can draw a big current while charging and that is the dangerous part in the camera. It can even kill you if you are unlucky and under the right conditions. It is not the 330V voltage rating, Voltage alone is no problem, it is the combination with 160uF. That is almost 9 joule. So it can pump 9A in you in 1 seconde. That is more dangerous then the AC mains current in your house. The flash circuit without the cap can make more as 1000V, enough to kill semiconductors in the camera. If you remove the cap, also remove the charge circuit (around that transformer near to it in the picture)
About those wires, I thought it was to power the camera but there are 3 wires and it looks like they are soldered to a pushbutton. It is not important how it looks but soldered this way it can cause a short in the circuit. One is touching a screw, and often screws are grounded. The other is touching a diode, if not now, it will in the future. If they were already there when it went wrong, this could be the source. I do not say it is, because I do not know where the are attached to. But if so this is a waist of time for the people who try to help you. And it can stop others from helping you. So it only has benefits to do it right.
It cost very little time to do it the right way like Shock showed and there is not a single reason other then being lazy, unable to solder normal or just being stubborn, to not do it right