Negative to Positive

For this project i took the white picture and made a positive. I first had to make the test strip so that way i knew how many seconds i had to do. The order the pictures i went in is the process i went in. First i did it for 3 second inter-voles, then i went up to 8.5, then 9.5 and 15. I decided to go up so i could get more dark on there so i went up to 20 and it was to much black. So then i had to start and did it by 2 second inter-voles. Then i decided the 4 would be good and we tried it for a few strips and then the big picture was for 4 seconds. I had to adjust the light. I first had to make it the brightest 3.6 and then i made it so it was crisp  edges and reduced the light back down to 8 and started the hole process of doing the test strip.