Most of the cameras with 3.5mm inputs I've encountered are microphone level. Even with the aforementioned XLR> 1/8" adaptor cable and if the cam can support a line level input, it would be -10dB, so feeding a nominal +4dB signal could overdrive the analog input stage regardless of lower record volume settings.
Yes, PeopleCanFly might have to add an XLR Inline Pad to bring the output level down to something his camera can handle. I normally use an older version of this to feed balanced audio signals to 3.5mm camera inputs, but it's way out of PeopleCanFly's budget range.