The layered crosshairs
In some of the photos that the astronauts took on the moon, the crosshairs in the photos appeared to be going behind objects. In ‘real’ photos they would have been visible in front of objects. Conspiracy believers say that this is solid evidence that the photos were actually taken on earth and had been badly altered to try and make it look like they were taken on the moon. However, if you look at the photos properly, you will see that all of the 'disappearing' crosshairs are aimed at white or bright objects. This shows that the crosshairs are not disappearing but merely being outshone by the objects they are being aimed at. The whiteness/brightness of the object floods out the original colour of the crosshair.