A courtyard window at Eastern State Penitentiary in Philadelphia Pennsylvania. The prison was built in 1829 and closed in 1971.
Sakai Toyo 5x7" large format metal field camera with 4x5" film back.
150mm Caltar-S II F 5.6 lens in Copal BT shutter.
Kodak Ektascan BR/A single-sided X-Ray film shot at ISO 100.
Exposure was 1/8 second at F22.
Developed in Rodinal/Adox Adonal 1:150 dilution for 7 minutes @ 20 degrees Celsius in Mod54 daylight developing tank.
4x5" negative scanned with Epson V600.