Jeff Enlow is working with a rare and near extinct medium, the 20x24 Polaroid film. He has a Kickstarter campaign to help him raise the funds required for this unique but expensive project.
His campaign page does a very good job of explaining the process and what he is trying to achieve; I'll leave you to explore it there.
The 20x24 Polaroid film is non-renewable resource and it would be a tragedy to see it wasted. Jeff has a very clear vision and his beautiful figure studies are a worthy effort for this dying art. Please support this project.