1/31/2024 0 Comments Using smart recorder"If you're using a telephoto lens, you've got a big aperture that's gathering a lot of light, and that does create a risk for the camera," Mr Hart said. The exception to this is if you're using a solar filter, which sits on top of the lens and blocks most of the sunlight to avoid damage to the eyes. If you have a camera with an optical viewfinder, don't use that to look at the Sun either. Don't look directly at the Sun through unfiltered telescopes or binoculars or camerasīecause optical instruments intensify the light, looking at the Sun through an unfiltered telescope or binoculars is very dangerous. You can also check the glasses come from a reputable retailer, and were made by an approved manufacturer.Īnd in case you're thinking of giving it a go, regular sunglasses won't protect your eyes from solar retinopathy. The Department of Health recommends ensuring eclipse glasses meet Australian standards and were purchased from a reputable retailer.Įclipse glasses that meet Australian standards should have an "ISO" or "CE" mark on the side. In fact, due to this risk, the Australian Radiation Protection and Nuclear Safety Agency (ARPANSA) has warned against using eclipse glasses for viewing the eclipse. "Get brand new ones and double check they're still in perfectly good condition." Getting the timing wrong can cause permanent eye damage, so some people may prefer to wear their solar shades throughout the entire eclipse. What about when the Sun is completely covered by the Moon?Īccording to the Royal Australian and New Zealand College of Ophthalmologists, it is safe to look at the Sun without proper eye protection only in the brief period when the Moon completely covers the Sun during totality.īut solar shades must be worn at any time the Sun is still visible during the partial phases. Even when 99 per cent of the Sun's surface is obscured, the remaining crescent Sun is still intense enough to cause retinal burn. Looking at the Sun for as little as a few seconds can result in permanent loss of vision.įortunately, there's a handy solution: eyewear especially designed for safe viewing of the Sun, known as solar shades or eclipse glasses. The medical term for this damage is solar retinopathy, which is where intense light energy damages the back part of the eye. In fact, it can take days before you even realise that you've damaged your eyes.Įven a tiny amount of sunlight spilling around the edge of the Moon is enough to damage your eyes. Don't look directly at the eclipse without eclipse glassesīecause some of the Sun is covered, you may be tempted to stare at it directly.Įven when the Sun isn't bright, your exposed eyes will be damaged by its ultraviolet radiation, which you can neither see nor sense as pain. He rapidly realised his mistake and swung the telescope away from Sun, preventing a solar-powered inferno. Instead, the telescope focused the rays upon a small spot on the wall. An eyepiece was meant to be fitted to the telescope, to make the rays diverge. He'd pointed a telescope with an 18-inch aperture at the Sun, intending to project the Sun from the viewing end of the telescope and onto the side of the dome that housed the equipment.īut he'd forgotten a crucial piece of equipment. In the early 1990s, Jonti Horner, who is now an astronomer at the University of Southern Queensland, accidentally demonstrated the power of the Sun's focused rays, when he almost burnt down an observatory in West Yorkshire. Make a pinhole in a piece of card, and, with your back to the Sun, project the spot of sunlight onto a wall, the ground or a piece of paper.ĭuring the partial eclipse, the round spot will become crescent-shaped, and you can can easily record the changing shape with your phone.īut for a 10 per cent eclipse, it'll be hard to observe any change in shape.Īn alternative option is to use a telescope or a pair of binoculars to project a larger spot of sunlight. People in Perth and Darwin will see at least a 70 per cent eclipse, while those in Melbourne and Sydney will see about 10 per cent.įor a 70 per cent eclipse, you can observe its progress with a simple pinhole projection. How much of the Sun is eclipsed depends on where you are in Australia. If you want to record the eclipse on your phone, make a projection Plus, you risk accidentally frying your eyes. "All you risk is harm and you're not going to get anything useful." "It's not going to fry the sensor on your smartphone, but it's also not going to take an interesting picture. ( Supplied: Phil Hart)īut, equally, there's not much point in taking that risk. ![]() There's no way you're getting this shot on your smartphone.
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