mark l wrote:4x10-most people cut 8x10 in half, dead easy. I believe Ilford with their once a year large format custom order will do fp4plus and hp5plus in 4x10. Not aware of anyone doing colour as a stock product, someone correct me if I'm wrong.
Beat me to it!
I have a faint recollection of Fuji doing dedicated E-6 4x10 at some point, based on seeing it advertised on eBay and/or LFPF.
I think that Tom612 (username on LFPF) used one recently, so he might know more. I'm not sure if he's a member here.