Process Variations
There are two versions of the E-6 process. Commercial laboratories use a six-bath chemical process. The 'hobby' type chemistry kits, such as those produced by Tetenal, use three chemical baths that combine the color developer and fogging bath solutions, and the pre-bleach, bleach and fixer bath solutions. The three-bath process has a discrete color developer step in between. However, the three-bath version of the process suffers from poor process control, with color shifts and color crossover, mainly because of insufficient bleaching, fixing or both in the bleach-fixer ("blix") stage.
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