I know the HMc150 doesn't have nightvision. I was wondering how I would go about filming a dark tunnel exploration with just a flashlight? I can not find a camera light on such short notice.
You need to perhaps tell us what kind of shooting you are doing, that makes it easier to figure out what type nd how much light you need. Lighting a dark tunnel is no easy feat with the right instruments.
if you use a flashlight as an on camera light you may want to sand the front lens or use some diffusion filter to help even out the light and hot spot. Also if you have other explorers have them carry some LED lanterns and possibly wear head lights.