I noticed that Freestyle has Arista.edu Ultra 400 film in 4x5. Having read that this is actually rebranded Fomapan, I went to Foma's website to download the film stats. However, their site (http://www.fomausa.com) states that the 400 speed film isn't available in 4x5. Is their website out of date, have they stopped producing it in 4x5, or is this film actually someone else's product?