Painkiller is an original exhibition of 48 Polaroid images by groundbreaking photographer Robert Frank taken from the 1970s through the present. Blue Sky  gallery in Portland closely collaborated with Frank in selecting photographs to be reproduced in a special series of enlarged prints for this show. Considered one of the most influential figures in the history of photography, Frank has redefined the aesthetic of both the still and the moving image via his pictures and films. Blue Sky presents Frank’s work again in Portland, having first shown his photographs in 1981. Painkiller closes this week at the Blue Sky Gallery in Portland, Oregon.