This is from a 12 plus year old lens guide. Check with Zeiss to see if they still have these available. Quality was great for creating tint samples,...
I used to cut this between two plano lenses just short of the bevel diameter and apply it to the flattest surface (albeit FT not applicable) also use...
Yes I have had plenty problem with Comfort Max, I do not dispense them anymore and went back to Comfort DRx and W2+ as my lower tier Varilux. Essilor...
In Introduction to Ophthalmic Optics (Meister and Sheedy) this is referred to as Prism by Obliquity, Systems for Ophthalmic Dispensing has a section...
The fitting and prism reference point should measure 63 with a tolerance of 0.33 Δ or 1.0 mm, depending on the power. Use a cutout chart to measure....
If all is edged correctly with a PAL, then the PD should measure correctly? for instance, take a look at the pic below. It is a PAL and it's supposed...
Those tiny bubbles are annoying. One thing that has helped me is to have a little dropper of distilled water on-hand. Not sure if it helps more than...
Get a bowl, full of water. Clean the back side of the Rx lens. Mark Fresnel at prism poles with an indelible pens like a lens marker (towards outside...