A Total Solar Eclipse Gathering

The Eclipse

Eclipse Safety Information

A total solar eclipse is safe to watch — but only if you know when and how. The difference between a life-changing experience and permanent eye damage comes down to a few simple rules.

Eclipse Safety Information

The One Rule That Matters

Never look at the Sun without proper eye protection — except during totality.

The Sun's surface is bright enough to damage your retinas in seconds. This damage is painless and often permanent. Regular sunglasses, even very dark ones, do not provide adequate protection.

The only exception is during totality — the brief window when the Moon completely covers the Sun. During those 1 minute and 42 seconds, and only then, you can look at the eclipsed Sun with your naked eyes.


When It's Safe to Look

Phase Safe to Look Without Protection?
Partial eclipse (before totality) NO — use eclipse glasses
Totality (Sun fully covered) YES — safe for naked eyes
Partial eclipse (after totality) NO — use eclipse glasses

How to know when totality begins: Watch for the "Diamond Ring" — a brilliant flash of light as the last sliver of Sun disappears. When the diamond fades and only the soft glow of the corona remains, totality has begun.

How to know when totality ends: The Diamond Ring reappears on the opposite side of the Moon. The moment you see that bright flash, look away or put your eclipse glasses back on.

At Iberia Eclipse, we will provide audio cues and guidance to help you know when it's safe.


Eclipse Glasses

Eclipse glasses (also called solar viewers) are the simplest way to safely watch the partial phases. They block 99.99% of sunlight.

What to Look For
  • ISO 12312-2 certification — this is the international safety standard for solar viewers
  • CE marking — indicates European compliance
  • Manufacturer name and address — reputable products are clearly labeled
  • No scratches, holes, or damage — inspect before each use
What to Avoid
  • Sunglasses (any darkness level)
  • Smoked glass
  • CDs or DVDs
  • Camera filters or neutral density filters
  • Welding glass below shade 12 (shade 12–14 is acceptable)
  • Any improvised filter you're not certain about
Where to Get Them

We will have certified eclipse glasses available at the festival. However, we recommend bringing your own to be certain. Purchase only from reputable astronomy retailers or verified vendors.

Do not use eclipse glasses that are more than 3 years old — the filter material can degrade over time.


Cameras, Phones, and Binoculars

Never look at the Sun through an unfiltered camera, phone camera, binoculars, or telescope.

The lens concentrates sunlight, making the danger even greater than looking with naked eyes. This applies during all partial phases.

For Photography
  • Use a certified solar filter that attaches to the front of your lens
  • Remove the filter only during totality
  • Replace the filter immediately when totality ends
For Binoculars and Telescopes
  • Requires a specialized solar filter fitted over the objective lens (the large end)
  • Never use an eyepiece solar filter — they can crack from heat
  • During totality only, you may view without a filter
Our Honest Advice

Consider whether you want to experience totality through a viewfinder. You have 1 minute and 42 seconds. Many experienced eclipse watchers recommend putting the camera down and simply being present.

If you must photograph, practice your settings beforehand and keep the process automatic so you can look up.


Children and Eclipse Safety

Children can safely enjoy the eclipse with proper supervision.

  • Provide eclipse glasses that fit — children's sizes are available
  • Practice beforehand — let them try the glasses before eclipse day
  • Supervise during partial phases — ensure they keep glasses on
  • Explain the Diamond Ring rule — glasses off only when the bright flash disappears
  • Consider their attention span — totality is short, partial phases are long

Young children may find the partial phase boring and the sudden darkness of totality startling. Prepare them for what to expect.


What If You Don't Have Eclipse Glasses?

You can still experience the eclipse safely without looking directly at the Sun.

Pinhole Projection

Poke a small hole in a piece of cardboard. Hold it up to the Sun and let the light project onto a flat surface behind it. You'll see a small image of the crescent Sun.

During the eclipse, tree leaves act as natural pinhole projectors — look at the ground beneath trees for hundreds of tiny crescent Suns.

Colander Method

Hold a kitchen colander up to the Sun. Each hole projects a small image of the eclipsed Sun onto the ground.

Watch the World

Even without looking at the Sun, you'll notice the eclipse. The light changes. Shadows sharpen. The temperature drops. The sky darkens. And during totality, you can look up freely.


Medical Considerations

If You Experience Eye Discomfort

If you accidentally looked at the Sun without protection and experience:

  • Blurred vision
  • Blind spots
  • Distorted vision
  • Changes in color perception

Seek medical attention. Solar retinopathy (eclipse blindness) is usually painless at first. Symptoms may appear hours after exposure.

Photosensitive Conditions

If you have a condition that makes you sensitive to bright light, take extra precautions during partial phases and immediately after totality.


Summary: The Safe Viewing Checklist

  • ✓ Use ISO 12312-2 certified eclipse glasses during all partial phases
  • ✓ Inspect glasses for damage before use
  • ✓ Watch for the Diamond Ring to know when totality begins
  • ✓ Remove glasses only during totality (Sun 100% covered)
  • ✓ Replace glasses immediately when the Diamond Ring returns
  • ✓ Never look through cameras, binoculars, or telescopes without proper solar filters
  • ✓ Supervise children throughout the eclipse
  • ✓ If in doubt, keep your glasses on

At the Festival

Iberia Eclipse will provide:

  • Certified eclipse glasses available for purchase and distribution
  • Audio announcements before and after totality
  • Information points with safety guidance
  • First aid stations staffed throughout the event

Our crew will help ensure everyone can experience this moment safely.