by jrburns47 » Wed Apr 26, 2017 9:19 pm
Right - did google & ebay searches for them and found many variations on the theme. None exactly like these though. Thorlabs looks like the most apt for holography and only slightly more expensive than others with the added benefit of anodized black and apparent end rectilinear precision. 80/20 has black but the sides are not flat.
Right - did google & ebay searches for them and found many variations on the theme. None exactly like these though. Thorlabs looks like the most apt for holography and only slightly more expensive than others with the added benefit of anodized black and apparent end rectilinear precision. 80/20 has black but the sides are not flat.