Pup
Philosopher
- Joined
- Dec 21, 2004
- Messages
- 6,679
Don't see a thread on this, so I might as well start one, mentioning some of the obvious things.
Even on a sidewalk, is it possible the rumble of traffic could affect the key? Easy enough to tell by watching it as traffic goes by.
Checking for magnets or using a non-ferrous key.
If it's outdoors, might be helpful to have a grid or some obvious reference point attached to the jar behind the key, from the camera's point of view, so something in the background doesn't give any chance for an illusion of movement, if the clear sides of the jar don't photograph perfectly due to lighting or whatever. "See, it moved in relationship to those weeds!" "You mean the ones blowing in the breeze?" "There was no breeze."
And it goes without saying that "touch the surface that the jar is sitting on" doesn't include jumping up and down inches from it with all your might, but I'll say it anyway.
Even on a sidewalk, is it possible the rumble of traffic could affect the key? Easy enough to tell by watching it as traffic goes by.
Checking for magnets or using a non-ferrous key.
If it's outdoors, might be helpful to have a grid or some obvious reference point attached to the jar behind the key, from the camera's point of view, so something in the background doesn't give any chance for an illusion of movement, if the clear sides of the jar don't photograph perfectly due to lighting or whatever. "See, it moved in relationship to those weeds!" "You mean the ones blowing in the breeze?" "There was no breeze."
And it goes without saying that "touch the surface that the jar is sitting on" doesn't include jumping up and down inches from it with all your might, but I'll say it anyway.