On 01/14/2017 01:12 PM, couryho...@aol.com wrote:
Many other stereo microscopes also have this provision to add a clear
filter or aux booster or de-creaser in power lens. always best to keep
active optics covered with some protection to save from solder splash,
sharp things sticking up from scratching etc etc...
Also, flux smoke gets all over the lenses. That is one
downside on my Olympus, the bottom is not sealed. I made up
some card stock and glued it in place to try to prevent the
smoke getting inside. But, it still gets on the lenses
requiring periodic cleaning.
Jon
