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Thousand Oaks Optical

Manufacturer of SAFE Solar Filters for Over 45 Years!

Visitors observe the annular solar eclipse from Grand Canyon National Park on May 20, 2012

NOTICE:  After a great 45 years of serving the astronomical community, we will be retiring on August 15, 2025. We want to express our sincere gratitude to our one million plus customers for your support and trust throughout these years. 

Orders will be accepted through August 14, 2025. Our website will remain available for any post purchase/technical inquiries.   

Pat Steele (Owner)

 

Used by NASA aboard the Space Shuttle. Other professional users include: ABC, BBC, CBS, NBC, CNN, NOVA, The Discovery Channel, National Geographic, and most major universities and observatories throughout the world.

We use the latest technology for manufacturing and developing new products. Tens of thousands of our solar filters and

millions of our eclipse viewers are in use worldwide. All filters are made in the U.S.

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Free ground shipping on all U.S. deliveries, excluding bulk filter material and shipments to U.S. territories.

Please see our Ordering Information page for up to date product availability and payment options.