In some cases, photographs taken in crop circles show a strange effect: as if a colour filter was on the lens when the picture was taken. The colour varies form green and grey to orange and red. The 'filter' is not always complete, sometimes only part of the photograph is effected. The photographs below (taken in the Litchfield formation van 1995) are a clear example.

The following photograph was shot by British crop circle researcher Busty Taylor in the direct vicinity at Chilcomb (near Winchester, UK) back in 1987. A mysterious object appeared on the picture (you can see the formation on the right upper part). Especially in the early crop circle years, this weird object was quite often photographed in crop circles by various people. The photographers never saw the object with the naked eye...

In 1993 American crop circle researcher Ron Russell shot this spooky picture in the direct vicinity of a crop formation at Oliver's Castle (Wiltshire, UK). Many people recognised a ghostlike, human figure, complete with limbs... (The two black silhouettes at the background are members of Asahi TV and CSETI).

In June 2002 Ron Russell photographed once again something extraordinary. While measuring electrostatic data in a crop formation at Kanses (USA), this yellow glow appeared on his photograph.