Hi MEMS workers, I want to measure the deformation of some MEMS scale or a bit larger structures by Photogrammetry. I need to have a good distribution of grey areas and white areas in the images. For this, I have to spray some tiny dot particles. I need a sprayer of that capacity. Also, an appropriate spray material would be required. I tried to use some powders like Titanium oxide and some other commercially available things but they do not seem to work for that level. Could anyone suggest me a way out? Is it possible to sputter something? It should not make a continuous deposit, what I need is a contrast between the different points.. Thanks in advance for your help.. Ramji ===== Ramji Dhakal M S Mechanical Engineering, SUNY Binghamton, NY __________________________________ Do you Yahoo!? Exclusive Video Premiere - Britney Spears http://launch.yahoo.com/promos/britneyspears/