Thanks Les. I have read your column in Practical Photoraphy, in times when read that magazine. I liked your nature b/w photographs(sand dune and if I can remember well of one canyon)

I must stay with non laser option. Money reason. But, next thing is interesting. If alingment is that much important, what happens when I raise one side of paper easel(or rotate enlarger head) in order to correct converging verticals in architecture photos. In that case alingment is way too much destroyed...