Tag: safety

  • DIY emission filter for observer safety

    DIY emission filter for observer safety

    I can’t believe I missed this excellent post from Sam Lord @ Everyday Scientist on how to insert an emission filter on your ocular lightpath. Having been hit by some untold number scopes wherein I either was observing, and switched to a no-emission-filter spot on the dichroic turret, or where I was observing and for […]