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Camera and orchids were setup on my back porch. Exposure was made with available late afternoon light coming from a 90 degree angle. Bellows were racked out at around 400mm which brought cause for the following bellows exposure compensation: 400-229=171 which equals BF: 3.05 or 1.69 of stopping down. I used Bob Wheeler's Vade Mecum on my HP 48GX for the math. Film was rated at ASA 25 since I am only interested in the negative. After exposure, development was made for 30 seconds and then the papers were peeled apart. The negative was immediately placed in a solution of three liters of water and 75ml of Heico Perma Wash for 1-2 minutes and then a final rinse of clean water.