Quote Originally Posted by Les McLean
. . . I sometimes get two laser spots bouncing back from the glass but one is always stronger than the other and that is the one I use for alignment purposes. . . .
Les - I'm curious. Assuming the two laser reflections are coming from the two surfaces of the bottom glass, wouldn't the dimmer reflection represent the top surface upon which the negative is resting? If so, wouldn't that be the better reflection to use?