[2020] Greater Focus Lens blueprint has disappeared from the market

Hello Thewookie88! Could you double check your market filters, if you own any of the Greater Lenses and have the filter hide owned checked you will not be able to see any of the items.

Disabling the filter is showing me all five Greater Lenses and selecting any will give you the option to either purchase them for 40 platinum or the blueprint for 200000 credits.