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Total solar eclipse · 2 August 2027

Eclipse glasses

Everything you need to watch the 2 August 2027 eclipse safely, and how to tell good glasses from a dangerous fake.

⚠ Buy early: before the August 2026 eclipse, certified glasses sold out in many shops in the final days.
ISO 12312-2 · 5-10 pairs

Family pack of paper glasses

The classic: light, cheap and enough for the whole family.

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ISO 12312-2 · plastic frame

Reusable rigid glasses

More comfortable during the long partial phase. Keep them for 2028.

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Clip for iPhone and Android

Phone solar filter

Photograph the partial phases without frying the camera sensor.

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For binoculars, telescopes and cameras

Solar filter film

Fits in front of the lens. Never look through binoculars without it.

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No looking at the Sun

Projection viewer

Projects the Sun onto a screen. Ideal with young children.

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What ISO 12312-2 means

It is the international standard for filters for direct viewing of the Sun. Compliant glasses cut visible light to a tiny fraction and block ultraviolet and infrared. It is the only marking that should reassure you.

How to spot reliable glasses

  • They carry the ISO 12312-2 marking and the manufacturer’s details.
  • With them on you see nothing in a lit room, only the Sun or a very bright light.
  • No scratches, creases or holes.
  • Buy from sellers with reviews and, ideally, from known astronomy brands.

How many you need

One per person, plus a spare pair in case they break or get lost. The partial phase lasts over an hour: rigid frames are more comfortable.

Phone photos

Looking at your phone screen does not harm your eyes, but pointing a zoomed camera at the Sun for long can damage the sensor. A clip-on solar filter protects the camera and improves the shot. Remove it during totality.

Binoculars, telescopes and cameras

They need a dedicated solar filter mounted in front of the lens, such as AstroSolar-type film. Never use eclipse glasses behind the instrument.

Before you look

Looking at the Sun unfiltered can damage your retina for good

The retina has no pain receptors: damage happens without you noticing and symptoms appear hours later. Sunglasses do not protect you. Only glasses meeting ISO 12312-2 do.