Film Emulation Filters

One of the major new features in version 1.1 of Viewfinder Preview is film emulation filters. Selecting a film emulation in the Settings will apply a filter to the preview view to replicate the colour and tone characteristics of that particular film stock. Selecting a black and white film will give you a black and white view. The emulation is done through large colour look up tables. Given a source colour the colour look up table returns an emulated colour. These colour look up tables or presets have been authored by Pat David. He has been kind enough to share them through a Creative Commons Attribution-ShareAlike license. The presets are an approximation of the film stocks and in some situations there has been a level of artistic license in generating them. They are not exact replicas. The four images above show the same bunch of flowers with different film emulation filters applied. The presets used are Kodak Portra 160, Ilford HP5 Plus 400, Fujifilm Neopan Acros 100 and Fujifilm Velvia 50.

The film emulation filters are also applied to any photos you take with the app while they are enabled.

The colour film presets available are

• Agfa Precisa 100
• Agfa Vista 200
• Fujifilm Pro 160C
• Fujifilm Pro 400H
• Fujifilm Provia 100F
• Fujifilm Superia 400
• Fujifilm Velvia 50
• Kodak Ektachrome 100 VS
• Kodak Ektar 100
• Kodak Portra 160
• Kodak Portra 400
• Kodak Portra 800.

The black and white film presets available are

• Fujifilm Neopan Acros 100
• Ilford Delta 100
• Ilford Delta 400
• Ilford Delta 3200
• Ilford FP4 Plus 125
• Ilford HP5 Plus 400
• Ilford Pan F Plus 50
• Ilford XP2
• Kodak T-Max 100
• Kodak T-Max 400
• Kodak T-Max 3200
• Kodak Tri-X 400
• Rollei IR 400
• Rollei Retro 80s.