5 second intervals. The darker it is the longer it has been exposed to light, so you would count up in 5's, the darker part at the top was exposed for a total of 30 seconds.
In this case i thought the best exposure time would be 15 seconds maximum exposure time.
This it the result of a 15 second exposure time.
After doing this print i drew on it showing what photographs i intend to use for the project by drawing round the picture.
Here is another contact print of more photographs taken. I couldn't fit all the negatives in to the neg board so had to do to contact sheets.
Nots i have but down showing me what thoughts i have on the shot and also the settings i had at the time of the shot taken as a reference for me in the future.