john0213 wrote in post #10552695
any suggestion if a soft box is needed for light painting?
I've never used one...but then I've never done anything as large as a car either. Honestly...unless you had a full pro studio to work in, I'm not sure exactly how you would set up a light box for a car! LOL!!! For some of the flower shots I've done, I did use a cotton background (actually an old t-shirt) and with the guitar shots, I just shot them down in my music studio (or later in my living room). The main thing is to just make sure the area you're shooting in...indoors or out...is -dark-. If there are any sources of light around, obviously a long exposure is quite likely to pick it up in the shot.
Here's a couple of examples...
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In both of these cases, the images were lit exclusively with a MAGlite. I set up the camera on a tripod, pre-focused the camera, turned the lights off and then hit the shutter button (using the timer of course). When I heard the shutter open, I just started painting with the flashlight, filling in the areas that I wanted lit.
Now I will say that in both of those examples there, I did have to play with things a bit. It's nearly impossible to get the lighting EXACT from image to image like this and each image does come out just a bit different so do take several images so you can compare afterward. You also may need to play with the shutter speed a bit too to find what works best for you. Again use a low ISO and I usually have the aperture set around 2 to 3 stops smaller than wide open (although with the flower I think I was wide open to get a shallow DOF). I honestly don't remember my exact settings for these shots so feel free to look at the EXIF data but when I'm doing stuff like this, I usually find that around 10 seconds on the shutter is a good place to start. Since you're shooting something MUCH larger than a flower or a guitar though you'll probably need a bit longer to give you time to get around the car and light it from the angles you want.
In your case since you're shooting a car...and it's not actually your car...I would suggest trying this idea on something smaller first to give you a better idea of how it all works. I will warn you though, it's a bit addictive! LOL! I've seen some really long exposures (up to 60 seconds or more) where people have ran around putting different colored gels on flashes and stuff to light different parts of a scene in different ways. It's a lot of fun to play around with and you can get some really interesting and creative results.
Again you can do this with a flash light, a spot light or even a flash that can be fired manually. If you do use a flash light or a spot though, make sure you watch your color temperature...most flash lights are still incandescents so they tend to give off a bit of a yellowish glow. I use the MAGlite myself for a few reasons...first the color balance is a bit better than an average flash light. My MAG also has a focusable beam...I can go tight spot or really wide. Last but not least, it's one of the 6 cell MAGs like the cops use and that sucker is BRIGHT! LOL!!! Any way you go with it though, just play with it...you should get the idea pretty quickly.
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