[Chris Burns] “‘I’ve had the camera set to Manual and I had been trying to set the shutter speed as high as I could while adjusting the aperature to still get the proper exposure.”
For myself, I only went for a shutter speed change on my GL2 as a last resort to reduce the amount of light coming in. Otherwise I kept the shutter at 1/60th sec. I would suggest that you try a number of tests at various shutter speeds to see what kind of look you’re after and what works for the smoothest slow mo. High shutter speeds will result in a “Private Ryan” stroby look while slower speeds will have smoother motion. If you’re outside on a sunny day and want to keep a set shutter speed (and the built in ND filter isn’t enough) you’ll need to buy another ND filter for the front of the lens.
[Chris Burns] “Would it be advised to raise the gain in order to achieve a higher shutter speed? “
Pumping up the gain should be used as a last resort to increase light levels and should be avoided because of the increased picture noise.
I personally have not had issues with bad looking slow mo and I always try to keep the shutter speed at 1/60th sec. regardless of light levels. Doing a white balance will not affect your slow mo result, but it will affect the way the camera records colour. If you’re noticing that your GL2 colours go towards the reds too much in low light shooting I’ve got a fix for that.
Do some tests at various shutter speeds with people walking/running etc. and see what works for you with regard to the best slow mo result.
– Don