Last year a book came out from a photographer whose name escapes me, but he did long term exposures with a large pin hole camera, of construction projects and the like around NYC. His exposures took weeks or months.... the results were amazing. I should have bought the book darn it.
How might one approach doing something sort of like that? Layers of ND filters over tiny pinholes with slow ISO film... but does anyone have any rough calculations of how to extend the exposure over weeks at a time? (or do you just do an hour per day for example?)
Any other practical chit-chat relating to this might be helpful too.... I have a little project in mind that it would be pretty cool to do for.
Thanks
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