Solar Pointer

thingiverse

For the upcoming Mercury solar transit or solar eclipse, this guide will help you safely aim your camera at the sun. Just slide it into place of the flash and check if a cylinder shadow appears. If a shadow is visible, your camera isn't aligned properly. Adjust your camera until the shadow disappears completely. Don't forget to shield your camera lenses with Mylar film (such as Astrosolar). With this device, you're always positioned opposite to the sun, eliminating any risk of damage to your eyesight.