The resources linked below are intended for broad distribution and may be freely reproduced, printed, and disseminated as long as no changes are made to them.| Solar Eclipse Across America
Our short name "ISO"| ISO
As noted in How to View a Solar Eclipse Safely, with one notable exception it is never safe to look directly at the Sun through a telescope, binoculars, or camera lens without a solar filter. That exception is during totality, the total phase of a total solar eclipse, when the dazzlingly bright solar surface is completely blocked by the Moon (which will happen only if you're within the path of the Moon's dark shadow). But totality is fleeting.| Solar Eclipse Across America
How to Use Solar Viewers | Indirect Viewing Methods | Do Solar Viewers Expire? | Cleaning Instructions | Welding Filters| Solar Eclipse Across America
Covering almost every product, process or service imaginable, ISO makes standards used everywhere.| ISO
We're ISO, the International Organization for Standardization. We develop and publish International Standards.| ISO