Thanks John! I have a Schneider Componon S 50mm lens in my enlarger and I print mainly 8x10 and smaller. Occasionally I make an 11x14. Will this pose a problem while using the Bes-Align? I do not quite understand why I may have to use a 75mm lens or longer, although my dad thinks that the Bes-Align may change the focal point (?) Thanks again for all your advise! Regina(posted 9266 days ago)