Hey,
before plastering Mantis with minor stuff that may or may not be wrong:
CoronaAO has the MaxSamples (per pass?) setting. Disregarding AA, 1 Ray per Sample with 1000 passes obviuosly renders 8 times slower than 1000 Samples with only 1 pass with identical Image result (Attachments), however the maxsamples setting in CoronaAO may be incorrect:
setting it to 1 produces 5 Rays/sample instead of 1 per sample, thus 200 Passes with maxsample setting 1, equal 1 Pass with maxsample setting 1000 in identical imagequality and rays cast and NOT 1 pass with maxsample setting 200, like one would assume.
This is a minor nitpick I suppose, yet still an incorrectness with the overall Rays/Sample count.
Lastly, Corona needs to clerify in the Wiki or documentation that although the image is 1:1 the same in 1pass with 1000samples and 1000passes with 1 sample (disregarding AA), it does NOT equal the same rendertime by far. This may or may not be important when balancing Samples and Rays for an Animation.
(eg. I found out, with simple geo and not too complex normalmaps 8passes is enough at 1080p in terms of AA, thus I limit passes to 8 and adjust Lightmultiplier and GI to kill noise, so that Animations render fast, without loss in quality)