Hi there , i was wondering if it is possible to display out to a projector whilst recording with the HMC 150 and what connections you can use for this , HDMI?
Yep, all three work great (though not simultaneously, if I recall correctly). In SD you even get options in the menu to do a crop, squeeze or letterbox for the aspect ratio conversion.
And for what it's worth, the RCA jacks are hidden behind a flap above the XLR ports. It took me (and a few other people here) a little while to find those!