On 01/14/2017 12:13 PM, couryho...@aol.com wrote: > check look at this listing they mention 38 mm? > > _http://www.ebay.com/itm/BAUSCH-amp-LOMB-STEREO-ZOOM-MICROSCOPE-38mm-RING-LI
<snip> Looks to be 38mm indeed. Rather than burn $40 on a protective filter, I'll probably just buy one of the Chinese coated "peel and stick" filters for $2. Shouldn't hurt until the real thing wanders my way for cheap... Thanks, Chuck
