Please check if you have applied any develop preset on import window? also, are shooting in raw only or jpeg+raw. Try and import a jpeg file in Lightroom check if that does the same cropping after import into Lightroom.
Thank you for your reply. I am shooting raw only, I will try jpeg + raw. I haven't applied any develop preset.
It was suggested to me that the ratio may be set differently in camera for shots taken with live view, which is what I usually use with freelensing or Lensbaby. I'm going to try to work on that too, but I'm not that quick with working with the camera manual so I will try tonight to see what happens with a jpeg.
But if I have imported the full size photo to my computer, I'm hoping there's a way to get the full photo into LR now.
Well Lightroom suppose to capture the smart preview of the images, so that you can edit them in Lightroom and export out and it should import the exact view of the image which you see outside the Lightroom. Let's see how it works with the jpeg files, if you have any camera you may try capture some raw images and test it with Lightroom.
Also, you can share one of the raw file with us via Dropbox download link and we can test it at our end.