I adjusted my shutter speed when taking my pics so that the lighting wouldn't be too dark or too light, but I kept the aperture the same to keep some continuity in the photos. Both of these images were shot manually.
f5.6, 1/500, ISO 800
If you are interested in using any of my pictures, have any questions, or just want to drop me a line, please contact me at melsonlinepics (at) gmail (dot) com. Thank you!