Daniel Zielinski

Outlandish values were creating huge loops in the lines produced. Could not read the values on the Y axis. Was driving me nuts, but then I tried changing the angle of the light on the chart and...problem solved! The chart I'm using is printed on photopaper and it has a gloss. Get the lighting angle wrong and the lensprofile chart has a fit. Other charts look mostly normal. The chart orientation numbers were all less than 0.10. That doesn't matter if the lighting angle is creating some kind of reflection...I...

Won't produce a good lensprofile except by accident. Move the chart a tiny amount and the orientation numbers jump around like crazy. My last attempt gave me a big red circle with a line through it. "Fiducials not found, probably incorrect chart type." But everything is right there in the image. Well...what chart was I using? YOUR CHART. I guess that explains it. I have the chart inside a frame with a glass covering to hold the chart flat. Maybe it's any reflections that are driving the software...