This paper features a double weight of 255 gsm and a white base tint providing neutral colors. Additionally, it is variable contrast paper with seven full grades of contrast available. These grades are accessible with the use of speed-matched filters. Multigrade FB Classic is designed for use with all enlargers and is equally suitable for printing from conventional negatives and from XP2 Super negatives. Safelights are recommended to have dark orange, dark brown, or red filters and a 15 W bulb.