George Gunn, a member of Outwood Community Video, captured the mysterious figure while filming on a local footpath.
It was not until he got home to edit the footage that he noticed the figure, which he said seemed to resemble a roman soldier.
Mr Gunn, 75, said: "It's too weird. I can't explain it.
"I wouldn't like to say whether it is a ghost or not.
"Some of the club members said it was a trick of the light but some thought it was definitely a ghost.
"A lot of people have said it was flare from the sun. What I can't understand is that it was underneath branches.
"There was a terrible breeze at the time and if there was movement above and around it that should have shown up on the camera, which it didn't.
"I have had a camera a long time and done an awful lot of photography and I have never had flare on the lens before."
The figure stands still in the picture before fading in and out when a pair of joggers move through it.
Club members believed there had been a Roman settlement nearby.
Mike Hooley, 63, said: "At first I just couldn't believe it because I don't believe in ghosts.
"I thought it must have been a trick of the light.
"I can't see it being something to do with the lens.
"We showed it to the members and one or two of them thought it was a ghost, but most were sceptical like me."
He said the group planned to research the area's Roman history.