Matt Proofing 170 gsm Photo Paper in A3+ from Fotospeed – 100 Sheets. This is a smooth, bright white, light-weight, all-purpose paper with a matt finish. This highly cost-effective paper maintains the same ink receiving layer as Fotospeed’s Matt Ultra 240 paper but as a fraction of the price. Making it ideal for proofing, document printing, album pages, portfolio work and all your everyday studio needs. Compatible with both dye and pigment inks.