You can't watch a total solar eclipse safely without proper eye protection. And not all eclipse glasses are created equal — the market is flooded with counterfeits that look identical to the real thing but offer zero protection. This guide will help you buy genuine, certified eclipse glasses for the 2028 eclipse and explain exactly what to look for.

Why You Need Certified Eclipse Glasses

Looking directly at the sun, even for a few seconds, can cause permanent blindness. During the partial phases of an eclipse — which will last hours on July 22, 2028 — the sun is still dangerous. Only during totality (the 3 minutes 49 seconds when the moon completely blocks the sun) can you safely look at the eclipse without protection.

For everything outside those few minutes, you'll need eclipse glasses. Regular sunglasses? Not nearly dark enough. Welding masks? Possible, but awkward. Certified eclipse glasses are the standard — they're affordable, portable, and when you buy from the right supplier, genuinely safe.

The ISO 12312-2 Standard

Genuine eclipse glasses meet the ISO 12312-2 international safety standard. This standard specifies exactly how much light and radiation the lenses must block:

All UV radiation (100% blocked)
All infrared radiation (100% blocked)
99.99%+ of visible light (only a tiny fraction passes through, appearing as a safe dim view)

The lenses must also be free from defects — no scratches, bubbles, dull spots, or inclusions that could impair vision or allow harmful light through.

Here's the critical part: just because glasses say "ISO 12312-2 compliant" doesn't mean they actually are. Counterfeiters put ISO labels on unsafe products all the time. The only way to know for sure is to buy from a vendor who can prove their glasses have been tested and certified by an accredited laboratory.

Where the Counterfeits Come From

Online marketplaces are saturated with fake eclipse glasses. Amazon, eBay, and other sites have listings at suspiciously low prices, often from sellers who've never actually tested their products. During the 2024 North American eclipse, the American Astronomical Society investigated thousands of vendors and found many claiming ISO compliance without any testing whatsoever.

The problem is especially acute on platforms like Temu and AliExpress, where prices are rock-bottom and supply chains are murky. A pair of counterfeit eclipse glasses might look perfect — same design, same label, same packaging as the real thing — but the lenses could be regular sunglasses or even completely unfiltered plastic.

How to Spot Counterfeits

Before you buy, check:

1. Is the seller reputable? Buy from established retailers or suppliers specifically listed by the American Astronomical Society. In Australia, that includes CSIRO Parkes Dish Shop, OZScopes, and select retailers like Officeworks or specialty astronomy shops.

2. Can they prove certification? Ask the seller for the manufacturer name and the ISO test certificate number. Reputable suppliers will have this information readily available. If they can't provide it, walk away.

3. Look at the price. If eclipse glasses are significantly cheaper than $1-2 AUD per pair, be suspicious. Bulk discounts are normal, but if something seems too cheap, it probably is.

4. Check the product condition. Even before you buy online, look at the photos carefully. Real eclipse glasses shouldn't have visible defects. Be wary of sellers with blurry or generic product photos.

5. Inspect in person when they arrive. When your glasses arrive, hold them up to a bright light in your home — but don't look directly through them at the sun yet. They should reduce the light dramatically, making a bright lamp look like a dim ember. If you can still see clearly through them indoors, they're not safe.

Where to Buy Safe Eclipse Glasses in Australia

For the 2028 eclipse, order from these verified Australian suppliers or international retailers with established reputations:

Australian suppliers:

CSIRO Parkes Dish Shop (parkesdishshop.com) — stocks ISO-certified eclipse glasses
OZScopes (ozscopes.com.au) — Baader Solar Eclipse Glasses, CE certified
Officeworks — often stocks certified eclipse glasses, especially as eclipse dates approach
Local astronomy clubs — many will stock certified glasses or recommend trusted suppliers

International suppliers that ship to Australia:

Rainbow Symphony (rainbowsymphony.com) — specializes in solar optics, ships worldwide
B&H Photo Video — reputable US retailer, often has ISO-certified options
EclipseGlasses.com — dedicated eclipse glasses supplier with verified vendors

The American Astronomical Society maintains a full list of tested suppliers at https://eclipse.aas.org/eye-safety/viewers-filters — check it before ordering.

When to Order for 2028

You don't need to panic and order today, but don't wait too long either. Here's a rough timeline:

Now through mid-2026: Comfortable window to order. Stock should be available, prices are stable, and shipping is normal.
Late 2026 through early 2027: Still fine, but suppliers may start selling out as eclipse day approaches.
Mid-2027 onward: Expect stock shortages and higher prices. Counterfeits increase as demand peaks.
2028 (especially after April): Risky. Many suppliers will be out of stock, and if you're buying from unfamiliar vendors at the last minute, the risk of counterfeits is highest.

Recommendation: Order by mid-2027 at the latest. If you're ordering for a group or family, order even earlier — you might qualify for bulk discounts, and you'll have peace of mind.

Testing Your Glasses Before Eclipse Day

Once you have your eclipse glasses:

1. Inspect them physically. Look for scratches, pinholes, dull spots, or other damage. If you find any defects, don't use them.

2. Test them indoors. Hold them up to a bright household light (not the sun). They should make the light appear as a safe, dim glow — like looking at a dimly lit room or an ember. If you can see clearly, the lenses aren't safe.

3. Never test them by looking at the sun. Some guides suggest this, but it's unnecessary and risky. If the glasses are defective, you could damage your eyes instantly. The indoor test is sufficient.

4. Store them safely. Keep your glasses in a cool, dry place between now and 2028. Avoid direct sunlight, heat, and pressure on the lenses. They should be good for years if stored properly.

What If You Miss the Window?

If you get close to eclipse day without glasses, don't panic. Your last-resort option is a welder's glass rated ISO 14 or higher (approximately ISO 14 or darker). These aren't ideal — they're bulky and can distort color — but they're often available at hardware stores and are genuinely safe if properly rated. Many people worldwide have watched eclipses this way.

Just make sure the rating is visible on the glass itself, not just on packaging that might be misleading. And test it the same way — hold it up to a bright light indoors and confirm you see only a dim view.

Final Thoughts

The good news: genuine, safe eclipse glasses exist, they're cheap, and they're available from reputable suppliers right now. The 2028 Sydney eclipse is going to be extraordinary, and proper eye protection means you'll actually be able to look at it without fear.

Don't gamble on counterfeits. Buy from a trusted supplier on this list, verify the certification, and order sooner rather than later. Your eyes will thank you.

See you on July 22, 2028 — with the right glasses. 🌑

How to Buy Safe Eclipse Glasses for Sydney 2028 (and Spot Counterfeits)