O’Rear used a Mamiya RZ67 medium-format camera on a tripod and Fujifilm’s Velvia color film that saturated green and blue colors.[7][10]: 2:29 [11] He credited the combination and said that if he had shot with 35 mm film, it would not have had an identical result.

Claim is it hasn’t been edited but it did use film that saturates certain colors by default