No it isn't...if the native resolution is below 360, upsample to 360. If the native rez is above 360 but below 720, upsample to 720.
Actually, the discussion about whether or not to upsample is discussed elsewhere...this segment dealt with is it worth upsampling high native rez images to 720 (or 600).
(Edited to add second line since under review of the video, I didn't specifically mention under 360PPI images in this segment)
watching both LR3 tutorials and these newer ones I too understood to upsample by 50% while lower than a certain threshold.
I was quite confused as I always thought to upres to the greater 360X multiplier just to avoid the job to be done by the printer/driver itself.
My question is: when upsizing from 360 to the final resolution (I'm speaking from the printer point of view when it receives the file from LR) will it use a serious algorithm or not?
I mean, should I always send 720 ppi files to the printer so that LR manages to upres better that the printer itself?
In worst case scenario, beside a longer time to export/send the file, it won't change nothing when printing from lower resolution, isn't it?
PS: forgive my english, I'm italian.