One Tech Tip: How to use apps to track and photograph the total solar eclipse

Monday’s total solar eclipse might become one of the most filmed and photographed events of the year.

There are online maps to check if you'll be anywhere near the path. NASA’s map shows how many minutes of totality there will be if you’re inside the path depending on location, and how much of a partial eclipse you'll see if you’re outside of it. There are a host of smartphone apps for eclipse chasers. The American Astronomical Society has compiled a list of useful ones for both iOS and Android devices, including its own Totality app that shows your location on a map of the totality path.

Associated Press chief photographer Julio Cortez advises using a smaller aperture – f11 or f17 – to keep the focus “a little bit sharper.” When he shot the 2017 total solar eclipse, he used an ISO setting of 1250 and 1/500 shutter speed.NASA published detailed guidelines for smartphone eclipse photography in 2017 with the caveat that “smartphones were never designed to do sun and moon photography.” That’s because the wide-angle lenses on most devices won’t let you capture close-up detail.

You can buy a filter that screws onto DSLR lenses, but it will take time to remove when totality happens. Cortez made his own with cardboard, tinted film and fasteners that he can quickly rip off.

Path Phone Moment Totality Camera Tripod Sky ISO American Astronomical Society NASA

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