Those who do not show their work have a reason.
Consider the circumstance: you know that ISO 100 film is more sensitive than Ilford Multigrade paper. You may even know by what factors. How you learned to gauge the exposure for paper also applies to film. If your darkroom prints are exposed for 8 to 20 seconds, what would you guess the exposure would be for an ISO 100 film? Certainly not the same time. Film is much more sensitive than paper. You could determine a relationship between the film and the paper used in your darkroom.
The standard light has been a mark of lab experience for more than 70 years.
Direct questions deserve direct answers.
Direct answer: The exposure is 5 seconds at 3 footcandle at the film plane.
Answers which involve much handwaving are smoke screens… cover ups.
As one form of claiming power, of having influence among the Hobby Snobby Forums, you gain points by being obtuse in your answers. The more complicated the answer, the less likely you will have to demonstrate the answer. Hobbyists are filling idle time. They don’t need the answer; if they did, they could test their system, learning the answer specific to their methods and tools.
What would be useful is teaching them how to setup, configure and use their specifics. That can be done using Web2 features. Not interested. The last group I taught has grown onto their own studios… Ask them how.
Key point: learn how to question the answers given. This will free you to find your answers to your questions.
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