Quote Originally Posted by ChadS View Post
If I just needed thin DoF I'd use a 1000x microscope objective.
Wow - where'd you get one of those? My highest power objectives for routine use are 100x NA=1.4 and require oil immersion, although I do have a 150x NA=1.35 glycerol immersion lens, and a 150x NA=0.95 dry lens for materials work.