Here's my dilemma: I shoot with Olympus OMD mirrorless cameras. There are times I switch from native 4:3 to 16:9 aspect ratio when shooting raw stills for inclusion into audio slideshows or videos. The problem I can't seem to overcome is Lightroom (5.7 and 6) wants to crop my RAW files to 16:9 and I can't find a way to keep it from doing that. I want to control that myself. Is there an obscure setting some place that prevents Lightroom from doing the crop on ingest?
The challenge with the initial "correct answer" is that makes for composing for full screen on a shoot more difficult as I want the frame filled with what I'm shooting in 16:9 yet I want to ingest native 4:3. My old copy of Capture One 7 Express doesn't crop my images during import and I find it remiss on Adobe's part to impose that on users like myself. Let me shoot the way I want and leave my imported images untouched and let me make the cropping choice in post. I begrudgingly have moved back to Lightroom 6 for other features like printing books through Blurb but this one issue of cropping my raw images on ingest has left me with a bad taste in my mouth.