i can simulate a 1000mm extreme telephoto and pretty much any other focal length, definately not true to as that 1000mm is set in more like 650 700mm but the margin does get larger the more extreme it is. it is predictable just not accurate(annoying but ill probably change that in the code and update the repository sometime i have time) mite export the other one you’re talking about. what it seems the most plausible is the focal length differences. but then we go to the quality problem between the website editor and the ue. ill research further and if when i fix ill update this thread with any code changes and or config changes i made to fix. any suggestion on the quality issue? we go from natural to video game look.