Christian Schmeer wrote:IS noise has always been picked up by DSLRs as well, it's normal. That's why you should only use the built-in microphone for synchronisation purposes.
It's not normal and needs to be addressed for any shooting conditions, It is not the norm as most
Cinematographers are using NON IS Cinema lenses...Anyway
I guess you have never edited anything but your own DSLR footage Christian.In the case of the BMCC or any production I would rather use a shotgun mic on my Rig, Reason is if your Primary/Master Audio (Boom Operator-Wireless lavs) has any issues (lav rustling) you can use the cameras Audio for a quick cut and replace as long you used a Decent Shotgun Mic and captured decent sound, The Built in cameras MIC would never work in this scenario, and depending on the distance you are from the dialog/audio your trying to capture on board "RIG" shotgun mic may not work either but...
Having any decent second or third audio source recording is a must IMO,
Because doing a re-shoot that was perfect the first take... but the audio was borked and unusable can cost more than it's worth to fix in the long run, Better to just get it on the first take and save the headaches.
Trust me if you think about quality sound (redundant sound capture) now...You will have quality results and sound choices in the end result.