Based on that data, it uses relative time offsets to determine when the eclipse phenomena will occur such as the diamond ring effect, the baily's beads effect, and others. Eclipse") with a GPS to determine when the fist, second, third, and fourth contact events (C1 through C4) will occur for the position where you are located. Both use the eclipse prediction data (for this eclipse that's the data provided by NASA's (now retired) Fred Espenak - a.k.a. Solar Eclipse Maestro (Mac only) and Eclipse Orchestrator (Windows only) are very similar. I'll be using a computer to control all the exposures. That's not much time and time spent with your head in the camera means you are missing the event yourself. Totality only lasts just a bit over 2 mins (maybe 2 mins 40 secs in the longest areas.). This creates a problem for the photographer trying to use manual techniques to capture it all. It takes about 12 stops worth of exposure to capture everything. The bits of the corona nearest the sun are bright and it gets much dimmer as it gets farther from the sun. This is why you'll want a lot of extra space around the Sun.Īlso the solar corona needs a lot of dynamic range to capture the extent. While normally we think "fill the frame", once totality occurs, the solar corona becomes visible and this will stretch out many times larger than the disk of the sun. The Sun should hopefully be at least 1/4 of the height of the sensor in the narrow direction, but not larger than 1/2 the height of the sensor. 3 if we can get Canon to update the EOS SDK so that it supports the 5D IV (hint hint, Canon)).Ī Canon APS-C sensor camera would ideally have a lens in the 400-800mm focal length range with about 525mm being nominal. I'll have several camera under control of Solar Eclipse Maestro software (well 2 cameras. I'm also participating in the Eclipse Megamovie.
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