Warning
This is one of the areas where algorithms are still in flux and calibration methods are not fully mature.
Differential throughput of lenslets. Scattered handful of low throughput lenslets, plus a regular grid pattern due to artifacts from the lenslet manufacturing photolithography.
Use ‘Divide by Lenslet Flat Field’ primitive with a relevant lensletflat file.
Currently done via code not yet integrated into the pipeline
Marshall Perrin, Patrick Ingraham
