SBAUstars:
SC036395 SBAU telescope workshop TimC using wetted newspaper to keep mirror from sliding
SBAUstars:
SC036402 SBAU telescope workshop TimC mirror Ronchi test microfiber cloth crawling on his back
SBAUstars:
SC036404 SBAU telescope workshop TimC mirror Ronchi test 5 lines outside Radius showing bump in middle and turned down edge
SBAUstars:
SC036408 SBAU telescope workshop TimC mirror pitch lap on newspaper calendar section lady
SBAUstars:
SC036410 SBAU telescope workshop TimC mirror on top of pitch lap should work center but only outside making contact w cerium solution
SBAUstars:
SC036414 SBAU telescope workshop TimC mirror Ronchi test outside R lines should be straight for spherical surface
SBAUstars:
SC036417 SBAU telescope workshop TimC mirror Ronchi test looking thru diffraction grating