One of our MFT’s users requested:
_To the team at Instytut Fotonowy,
We are collectively writing to you here as a group of current and future Automated MFT users to respectfully request the addition of an averaging and standard deviation function in the MFT software. As it stands, averaging multiple fading curves from similar areas is a cumbersome activity that requires manually exporting the curve data into a third-party software for treatment. We understand there is a consensus within the MFT team at Instytut Fotonowy about possible issues related to surface homogeneity and averaging, which might not be wholly representative. However, we in our day to day practice, as well as more in depth research studies, greatly benefit from the assessment of uncertainty in the measurement by averaging and standard deviation, particularly when running blue wools and other reference samples. We would argue that it is essential for a meaningful interpretation of the fading data, as illustrated by the many published works in the MFT literature. We hope that you see this function as valuable in the further development of your software and instrumental capability.
Thank you for your consideration._
- Signed by 12 users
One of the purposes of the Micro Fading Tester is to recognize the most light sensitive areas in the artworks in order to protect them against the light. The result of the averaging operation is that the problem of the most sensitive dye/area, that requires the most care, becomes “dissolved” with more stable dyes. Then, instead of paying attention to the most sensitive areas, one may adapt the exposure policy to the average level, neglecting the most sensitive areas.
Being aware of it, several other questions may arise:
- Is the user fully aware of that risk? We take into account that a large group of users are more familiar in history of arts, not necessarily in (photo)chemistry or physics, and may not fully understand the result neglecting the most unfavorable readouts.
- Who will take responsibility for the damaged artworks? Instytut Fotonowy would not like to be blamed for results, that give rise to improper lighting policy and then for fading the painting.
However, we understand that the averaging issue is wanted by the users’ community. We may add it to the next software release.
In the meantime some questions concerning responsibility and awareness should be answered.