Which major telescope manufacturer issued a massive recall in 2006 after their mirrors were found to contain harmful levels of beryllium that could cause respiratory problems when cleaned?

In the competitive world of astronomy equipment, product recalls can significantly impact brand reputation and consumer trust. This poll explores one of the most notorious product recalls in astronomical equipment history that changed how manufacturers approach quality control and customer safety. Test your knowledge about this pivotal moment that reshaped the industry's approach to product testing and transparency.

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Celestron
Meade Instruments
Orion Telescopes
Takahashi