Got up at 4 am to see the low tide at the Scripps pier in La Jolla. It was dark and cloudy and the moon was not shining through the cloud layer as I had hoped for this morning. The tide was so low it was possible to walk out under the pier for two thirds of its length and not get my feet wet.
I used the Canon 6D and the Canon 24-105 lens which is very sharp at f8.0 but my shutter speed was 30 seconds. This could be a problem when the tripod is in the wet sand because it can sink into the sand during the long exposure and ruin the sharpness of the image. I shove the tripod down into the sand and wait for a minute or two before leveling the camera and taking the image. I usually have to take two or three images to get one sharp one. It was also too dark to see if I was in good focus until after the images was taken and I could enlarge it on the LCD on the back of the camera for closer inspection inspection and even that is not a perfect way to tell if the images is focused and sharp. It takes about one minute to take and inspect an image and with early morning light changing quickly it can be a problem to get the image your really want.
When the ambient light increased I was forced to use shorter shutter speeds that I did not want because I wanted the ocean waves to be a blur.
I think what I got was acceptable but I only had about 45 minutes to work the area before the herds of runners and morning walkers showed up.