As someone who has worked for over a decade in the field of technical photography for science and engineering, my view would be that such questions would be totally on topic for a general Photography question and answer pool.
"Photography Stack Exchange is for professional, enthusiast and amateur photographers.
If you have a question about … techniques and best practices"
To me would suggest that a high level discussion on how to tackle the photographic element of data capture and management of the images produced would logically fit within the realm of this exchange as it is currently being branded.
- Define the methodology and establish how photography can be used to achieve a goal, and then break things out into sub-problems/questions for other exchanges as needed after they're properly identified from the photographic standpoint.
Unless the community wants to rebrand itself as something along the lines of "Fine Art Photography", and clearly exclude everything that isn't focused on 'making pretty pictures', then encouraging a broad base of questions related to the photographic field is important to making this a useful resource that actually covers the breadth of the field it claims to:
"I want to use photography to do X" ... "Answer you can use Y and Z from Math and Physics, see [these questions/answers in] Math and Physics for further details on how to implement this" seems far more useful and constructive than "Not our department, go away".
This stance would also cover issues like discussions of custom equipment to achieve a photographic goal. - If I have equipment related issues to getting some specific photo I'm after, then this seems like the logical place to define what equipment is needed to do the job, how it should work, etc, but then specific questions on making that equipment would be directed elsewhere.