i did the last project from negative to positive. I put the negative photo that I had before on top of the the blank photo paper and set the F stop to F11 and i did it for 20 seconds to get enough light to make the black change to white. I did many test strips to make sure the right amount of light was there and that everything changed from black to white. That is how I got my negative to positive.

The First strip was our first test to see how much light got into our coffee camera, we got just the right amount of light which explains the white, the second was black which shows that there is to much light in the camera at the time. The third we did for a shorter amount of time, then the fourth strip we got a little closer annd got some grey and black which showed the negative of the pumpkin and on the last 5x7 we did it for 10 seconds to get the right amount of light and negative.