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So I'm going to a nearby city to explore an old Military Cargo Transport Tunnel System and I have a question.
What are some tips to getting the best quality photos in terms of lighting? I have a small light panel but I feel like my camera settings can be altered to give me some better looking footage. Also, what would you recommend I do in terms of the dampness in the area for my camera? I could put it in a plastic bag or something.
Hopefully I'll be able to share my adventures with y'all soon, take care!
- D
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Assuming you are using a tripod, I use a 3 D cell battery maglite to shine on the subject for focus and metering, then a long exposure. If these tunnels are pitch black, you could try the same metering technique then use the flash light to paint the area as the shutter is open.
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I have the same kind of flashlight but it can get overexposed with the flashlight on with a long exposure. I haven't tried it but I've heard that using a laser pointer is useful for autofocus dslr's to lock on in low light.
You may want to PM Astro with your question. If anyone knows how to photograph in low light tunnel situations it's her!
See More on Flickr!
https://www.flickr...tos/133983270@N06/
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If you're not ready to make any big investments, I would suggest a cheap tripod and some decent flashlights to do light painting. You might also want to look into a shutter remote because they're cheap, allow for longer exposures (which may be necessary if your camera isn't capable of a high, quality ISO level) and can help with camera shake (sometimes, even on a tripod, you move the camera a bit just by hitting the button).
Like ForgottenRails said, use your flashlight to shine on your subject to get good focus where you want. Then turn your camera to manual focus so it doesn't try to readjust. Do a long exposure and some light painting. You'll have to do some experimenting to figure out how long the exposure should be and how much light to paint in.
Once you figure out how to do that successfully you should get decent exposure. Here's a few of my personal results with that technique:
 Reflections by Gina, on Flickr
^Underground with no outside light
 Into The Light by Gina, on Flickr
^In an above ground tunnel with very little light
If you want to get more complex with it, you might want to also consider bringing along multiple light sources to light up different areas to give your pictures a bit more depth.
 Maze by Gina, on Flickr
In this one I used 3 different placed lights which are pretty apparent. I also used an off-camera flash to lighten the tunnel on the ceiling, and a fourth light to light paint the foreground.
When you're doing the painting you should be kind of random about it. Move the light constantly to avoid hot spots and try to light up the entire scene. Keep in mind that things that are closer to you will reflect the light stronger and therefore turn out brighter, so focus a bit more of the parts that are farther away.
As far as dampness goes, I've never used anything on my camera to protect it from water, but it might be a good idea to find a drybag that will fit your camera case. Usually when I go caving I'll put my camera in my padded camera bag, then put that inside a drybag, and then put that inside a drybag backpack. Just be careful when you take it out.
Hope that helps at all. Best of luck to you. Looking forward to seeing your pictures.
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