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| p.1 #6 · p.1 #6 · Ballet Dancers Nightime Time Lapse w/ Strobe |
Your first consideration will be the ambient light source and level that enables you to get a baseline exposure on the dance segment that is acceptable to you. High ISO, small aperture is only a concern if you're worried about depth of field, otherwise you can go either way. You really need to test this for both aspects of the shot. As recommended, go out with her and her orb at your intended location and time, assess the baseline exposure, and note that. Then, determine what flash power is needed to freeze the final moment at a power level that doesn't blow out your frame. The last thing you want is a subtle travel path, only to be completed by a blown out final flash burst. As to the length of the exposure, that should be based on the nature of the dance, how complex the movement is, how far the dancer travels across the frame, etc. My sense is that less is probably more, in terms of the complexity of the dance movement. Also, you'll need to lock down the camera position on a tripod, rather than trying to pan with the dancer. Panning will just give you a sloppy mess, I suspect.