Actually, I don't think you would find an angle finder to be inconvenient. Looking down into the viewfinder is different, but not at all uncomfortable. Unless, of course, the somewhat lower camera angle is problematic.
Keep in mind that any device that magnifies the view will also restrict you to viewing the center of the viewfinder, so you will lose your sense of framing. For landscape, that's OK, as long as you can switch between the magnified and unmagnified view. An angle finder will let you do so, but you must re-focus it each time, which is a little bit of a pain. |
