E-6 is the reversal process for color slide (transparency) film such as Fujichrome and Ektachrome. It requires dedicated chemistry and tight temperature control, so fewer labs offer it than C-41.
8 labs
2-chōme-3-10 Honchō, Aoba Ward, Sendai, Miyagi 980-0014, Japan
1-chōme-3-1 Tsutsujigaoka, Miyagino Ward, Sendai, Miyagi 983-0852, Japan
1-21-1 Kagitorihonchō, Taihaku-ku, Sendai, Miyagi 982-0805, Japan, Aeon Supercenter Kagitori, 1F
2F, Aeon Sendai Saiwaicho SC, 5-10-1 Saiwaicho, Miyagino-ku, Sendai, Miyagi 983-0836, Japan
5th Floor, East Seven Building, 1-2-47 Tsutsujigaoka, Miyagino Ward, Sendai, Miyagi 983-0852, Japan
982-0011 Miyagi Prefecture, Sendai, Taihaku Ward, Nagamachi 7-chōme 20-15, The Mall Sendai Nagamachi Part2, 3F, Japan
1-23 Sakanoue, Furuuchi, Izumi-ku, Sendai, Miyagi 981-3123, Japan (inside York Benimaru Izumi Furuuchi)
1F, 4-chome-1-8 Tsutsujigaoka, Miyagino-ku, Sendai, Miyagi 983-0852, Japan