After my first attempt at 4x5 infrared pinhole shots I made a few changes.
I removed then re-glued the filter mount in the camera, making sure to keep the glue on the outside of the filter so it laid flat against the wood. The glue was causing some issues with light leaks and strange light reflections so I was hoping to eliminate these. When the camera was ready, I headed out to expose a few sheets of film. I looked for bright, sunny 16 conditions before setting up the tripod and taking the shot. Then I made sure to reverse my dark slides on the film holders after exposing a frame to prevent unintentional double exposures. When I came home to develop the sheets I made sure to stand develop only two sheets at a time. I saw some nice improvements.
I was getting the white trees and dark skies that I wanted but there was some odd light flare on the bottom right of each frame and it was consistent across the four sheets I exposed. I used some black gaffer's tape and taped up the edge inside the filter mount where the metal and glass connected. The glue was also covered.
I went out on the last sunny afternoon we've had in the PNW and exposed another two sheets of IR. I think I may finally have the camera properly setup for infrared film. Now it's just a matter of sunshine, not an easy thing when I live in Seattle.
I'll be sure to update the blog once the sunny weather returns. How are your experiments coming along? Got any plans for Worldwide Pinhole Photography Day?