More on FAQ #855
855. If cropping to any non-rectangular shape disqualifies a photo from rinairs (and thus from TTG), what about photographs that were recorded as round because the recording area was larger than the image circle?
		    
		    So that the viewer knows that the image was not cropped to a circle (which would disqualify it from TTG; see “C” here), the photographer can simply present the photograph as a square or rectangle,* leaving as much or as little as they wish of the corner/edge darkening (see also questions #861-865).
            
• If the corners or edges are dark when showing the entire image circle or because of something in the scene (for example, shooting through a keyhole), an “IC” alert and explanation may be necessary.
• If the corners or edges are dark
because of something affixed to the front of the camera or lens (for example a vignetter), the “blocked” areas should be cropped out or the photograph will not meet rinairs and thus cannot meet P7.
*Most cameras automatically crop their lenses’ round light beam to a square or rectangle.
