Look, all I am saying is for accuracy sake ... which you do not want them (the repair facility) questioning, "optimize" your shooting conditions. Shooting stuff under less than "normal" conditions often results in less than perfect product. Just put yourself in their shoes ... how far off the mark is the range in focus. It gets a little hairy with sub-par lighting. If it REALLY is hosed up ... it'll be hosed up no matter how much more light you throw at it.

I say, "Take away any excuse."