Do you have access to buying in date Velvia 50 in 4x5? Just curious with all the various eBay vendors selling it, yet it is long gone now from every place except what appears to be possibly a very few Asian locales. I'm not even sure if this is true or if Fuji stopped the production entirely on that product.
I have no idea about sheet film as I have no cameras for that type. I'll have a look next time I'm in the shop.