ykia said:Email the file to me and I can print for you. I suggest about 150dpi min.
Thanks, what is the highest DPI can go?
This is the link of a zone plate photography site , is anyone also interested to try out? Think can make about 50 pcs in a A4 transparency.
Btw, the one I making is 45mm focal lenght, f-stop : f39.3