"Agfa Billy Record folding camera for 6x9 cm on 120 film where the lens has been replaced with a pinhole 0.4 mm giving f/250 at focal length 100 mm. Exposure time 4 seconds. Film Ilford FP4+ developed in Adox FX-39 II, diluted 1+9, 8.5 minutes at 20 degrees C. Image crop to 16:9 ratio."