I have read in several places that 620 Brownies can be modified to accept regular 120 roll film. Can you tell me how its done? I have a Hawkeye and a Flash Six-20 that I'd like to experiment with. <p> Also, I have an old metal box camera from Sears Roebuck. I believe the model name is "Tower". It takes 120 film and has both an instantaneous and timed shutter setting. It looks very similar to some Kodak models I've seen. Can you tell me anything more about it? <p> Thanks for your help. Very cool web page by the way!