-Gelatin filters - filters cut from dyed gelatin sheets and held in front of the lens or studio light.
-Gelatin sugar process - daylight printing process using paper with a sugar and dichromate coating, which hardens on exposure to light.
When not in use, gelatin filters should be stored in their original package, or they can be stored in clean paper between pages of a book. Gelatin filters should be kept flat and stored in a dark, dry place.
Kodak Wratten #87, #88A gelatin filters
B+W #87 52mm glass filter
Nikon AF-1 gelatine filter holder
Nikon HN-12 lens hood
28-37mm step-up ring (available at CKCPower)
37-52mm step-up ring
46-52mm step-up ring
Bogen tripod & ball head ...
Colour compensating filters
Gelatin filters that can be used to adjust the colour balance during picture taking or in colour printing. Abbreviated CC filters.
Filters come in both glass and gelatin versions. You can find them at B&H Photo, Tiffin, or BW. For glass filters you may need step-up rings from CKCPower. For gelatin filters, you'll need a filter holder.
GELATIN - A nearly transparent substance, obtained by boiling animal tissue in water, used as (1) the medium for suspending light-sensitive silver halide crystals on photographic film, and (2) in the manufacture of gelatin filters.
You can also make the Harris shutter by making three square gelatin filters (No. 25 red, 61 green, and 38A blue), cut and taped over a black cardboard.
 See also: Camera, Gelatin filter, Photograph, Light, Color
  
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