Once you have your shot framed and settings dialed in, it is time to break out the remote shutter control (or duct tape). These are just a good base to start with, once you frame your shot and take a few test shots, you will probably need to play around with the ISO to get the proper exposure.įor example, this was taken at f/1.4 ISO400 30s and was the starting point for one of my star trails: ![]() It goes without saying (but I’m going to say it anyways) you really want to try to get your hands on the fastest lens you can (largest aperture, smallest “F” number). Here is a list of settings you would need to use at several common apertures to get a 30 second exposure: The ISO speed and aperture will change depending on which lens you are shooting with. For star trails you want to shoot on manual mode so there is no change in exposure between photos with a 30-second exposure. Now that all the planning has been taking care of, we can talk about shooting (don’t worry this is the easy part!).įirst, you will want to firmly set up your tripod so that it wont move or get blown over by the wind. Seeing as how this is where I am planning to go on Friday – it is a bit of a gamble! The Shooting This shows the clear sky chart for the Athabasca Glacier in Jasper, Alberta and you can see by the legend there is essentially 90-100% cloud cover for the entire forecast period with the exception of a few hours on Friday morning moving towards lighter cloud cover Friday night. ![]() The chart may be a it daunting, but it is actually very simple, here is a quick example: Finally, once you know your location, you want to make sure you have a cloud free night otherwise you will be photographing cloud trails instead of star trails, once again, there is a tool for that! This website provides clear sky charts for many locations across North America that let you know where and when to find a cloud free sky.
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