Can someone tell me how I can increase negative size, say beginning with a 6X6, how would you go about working it up to a 4X5 or even an 8X10 for contact printi ng. Do you have to do a print and then photograph the print to get a negative an d thereby lose detail? Or is there some way you can go from negative to negative and retain all the fine detail in the negative. I read somewhere that Edward We ston took portraits with a 4X5, but he eventually printed the final 8x10 with th e contact method; however the article neglected the details of the steps in the process. In another sorce, I read where you can go from a negative to a positive on film with an enlarger, but one: how would you time it (must be very slow spe ed film), and what are the steps to get back to the negative you need to do the contact print. If anyone happens to know, thanks in advance.