Sunglasses will not do.
Not polarised pairs, not an X-ray sheet, not smoked glass. A certified solar filter is something else: ISO 12312-2:2015.
2 August 2027
Where to see the 2027 eclipse
Totality on 2 August 2027 crosses Cádiz, Tarifa, Algeciras, Málaga, Motril, the Almería coast, Ceuta and Melilla. Times from the Instituto Geográfico Nacional (IGN).
10:47
CEST · Europe/Madrid
IGN maximum: Cádiz 10:46:53 (2 min 55 s), Tarifa 10:47:29 (4 min 38 s), Algeciras 10:47:42 (4 min 27 s), Ceuta 10:47:47 (4 min 49 s), Málaga 10:49:06 (1 min 49 s), Motril 10:50:12 (1 min 42 s), Melilla 10:50:32 (4 min 34 s). Almería coast: Roquetas de Mar 10:51:19. The city of Almería stays partial.
Times from the Instituto Geográfico Nacional (IGN). The Moon’s irregular limb can shift totality by ±1–3 s. Path: Eclipse Predictions by Fred Espenak, NASA's GSFC.
How it feels
Two to five minutes. Then the rest of your life.
Exact duration depends on where you stand in the path. What does not change: the sky closes, the temperature drops, the birds go quiet.
Before
The light turns strange
Hard shadows, silver on the sea, a silence that is not dusk. The glasses stay on while the sun is there.
Totality
They can come off
Only when the disk is fully covered. Corona, a 360-degree horizon, two to five minutes by zone.
After
The sun returns
Glasses on again. The second diamond. Andalusia in daylight, as if nothing happened. It will have.
Trust
No theatre. Paperwork.
01
Batch traceability
Production under modules B and C, traceable by batch. EU type examination: CCQS Certification Services Ltd, Ireland, notified body 2834.
02
EN ISO 12312-2:2015
Category II PPE, Regulation (EU) 2016/425. Certificate CE-PI-20251128-01-01-9A. Tested pair: ICS Laboratories, report T20416-01-1, 26 November 2025.
03
Made in Spain · National product
Frame in FSC-certified board. Model A1, Celestech Vision Solar, SL, L'Hospitalet de Llobregat.
Technical sheet
What the filter lets through.
Model A1. Direct observation of the Sun and of solar eclipses. Figures from the tested pair: not a per-batch guarantee.
A1 · ES · v2 · 28.09.2026
Made in Spain · National product
Characteristics
A1
Direct observation of the Sun and of solar eclipses.
- Frame
- Printed rigid board
- Thickness
- Approx. 1.15 mm
- Size
- Adult, adjustable
- Filters
- Metallised polymer, silver/black
- Board
- FSC-certified
- Made
- Spain
Approximate thickness, calipered on the frame, clear of the filters.
Optical performance
Tested pair
1,15mm
| Band | Left | Right |
|---|---|---|
| Visible light (D65) | 0,00019 % | 0,00021 % |
| UVB · 280–315 nm | <0,00001 % | <0,00001 % |
| UVA · 315–380 nm | <0,00001 % | <0,00001 % |
| Infrared · 780–2000 nm | 0,006 % | 0,006 % |
Transmitted light, measured on one pair. Not a per-batch guarantee. Every test listed was passed.
Relative spectral uncertainty: 10 % (95 % confidence; k = 2).
ICS Laboratories, Inc. · Report T20416-01-1 · edition 1 · 26 November 2025
Conformity
EN ISO 12312-2:2015
Category II PPE · Regulation (EU) 2016/425
Certificate
CE-PI-20251128-01-01-9A
EU type examination · CCQS Certification Services Ltd · Ireland · NB 2834
Modules B + C. Batch-traceable production.
Use, care and replacement
01
Inspect
Before every use. Discard at any fault: a scratched, punctured or loose filter.
02
Fit
Seated properly before you look. Whenever any part of the Sun is visible.
03
Children
An adult watching, and a secure fit. The size is adult, adjustable.
04
No optics
Not with telescopes, binoculars, cameras or other optical devices.
05
Soft cloth
Store dry, out of the sun and away from damage.
06
Replacement
The period is the one in the batch instructions. Service life is not guaranteed.
Celestech Vision Solar, SL · L'Hospitalet de Llobregat · Barcelona
Questions
Before you look.
The standard, the origin, children, and care.
Walk the 2027 eclipse map, read the filter safety notes, or open the FAQ.
What does EN ISO 12312-2:2015 actually guarantee?
That the filter is made for looking straight at the Sun. Model A1 is category II PPE under Regulation (EU) 2016/425, with an EU type examination. It does not mean any dark lens. The published transmittance is for the tested pair, not a guarantee of every batch.
What if I stack two pairs of sunglasses?
They are still sunglasses. Polarised, category 4, or stacked, they do not replace an EN ISO 12312-2:2015 filter. Neither does an X-ray sheet or smoked glass.
When is totality?
2 August 2027, in the morning. The IGN maximum is 10:46:53 in Cádiz, 10:47:29 in Tarifa, 10:47:42 in Algeciras and 10:47:47 in Ceuta. Málaga is 10:49:06, Motril 10:50:12 and Melilla 10:50:32. On the Almería coast, Roquetas de Mar is 10:51:19; the city of Almería stays partial.
Are they made in Spain?
Yes. Model A1 is manufactured in Spain: an FSC-certified board frame, by Celestech Vision Solar, SL, in L'Hospitalet de Llobregat (Barcelona). It is a national product.
Can children use them?
The size is adult and adjustable. Children need an adult watching and a secure fit. If they do not sit firmly on the face, they are not for looking at the Sun.
Can I use them with a telescope or a phone?
No. Do not use them with telescopes, binoculars, cameras or any other optical device. They are for the eye, in direct observation.
How do you care for them, and when do you replace them?
Inspect them before every use. If the filter is scratched, punctured, loose or faulty in any way, throw them out. Clean with a soft cloth. Keep them dry, out of the sun and away from damage. The replacement period is the one in the instructions that come with the batch. Service life depends on condition and storage, and it is not guaranteed.
