Can the same color film look different depending on the lab that develops or scans it?
Asked 11/27/2016
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I’ve noticed that one lab gives me color results I really like, but it’s expensive. With the same roll of color film, can different labs produce slightly different color tint or balance? I’m trying to understand whether the difference mainly comes from the film development process itself, the scan/print stage, or both.
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
9y ago
2 Answers
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Color film is fabricated by applying numerous light sensitive coats on a single support. The red sensitive coat is on the bottom followed by the green sensitive coat. Lastly, the blue sensitive coat is on top. It’s not that simple as just three coats, there are many intermediate coats plus a slow and fast coat for each primary color. When this multi-sandwich is developed, the fluids must infuse to reach the innermost layers. The infusion rate is a time/temperature operation. Any change will cause different layers to come to culmination or not. In other words, the final color balance is based on these variables. The standards are generally 1/6 f-stop ± for each layer. All of this is besides the any shifts that are induced depending on the time between exposure and processing. What I am telling you is, the variables are substantial, the color and density will vary somewhat between labs. Also film developed in the same lab on different days will show variations.
Originally by user44608. Source · Licensed CC BY-SA 4.0
user44608
9y ago
0
Generated from our catalog & community — verify before relying on it.
Yes. The same color negative film can show slightly different color balance from one lab to another, and both processing and scanning/printing can affect it.
On the processing side, color film depends on tightly controlled time and temperature, since the chemicals must develop multiple emulsion layers evenly. Small variations in chemistry condition, replenishment, temperature, or timing can shift color. Labs that maintain their chemistry carefully and run proper quality control usually give more consistent results.
On the output side, scans and prints can vary even more. The scanner, scanner settings, operator choices, and print process can all change tint, contrast, and overall color rendering.
So if you love one lab’s results, that may be due to better film processing, better scanning, or both. If consistency matters, it’s worth sticking with the lab whose look you prefer.
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