Yesterday I have observed one more time 12 Lynxis with my Telementor (Equipment: look here) - successful: I splittet this doublestar.
First I used my 9mm Vixen - orthoscopic eyepiece at 93x: The star could be seen longish but not splittet. Then I took my 5mm Ortho
(168x) and - in moments of still air - I could split 12 Lynxis and so I saw two star-points side by side, separated by a darker
zone between. This zone was not real black but perspicuous darker than the stars.
After this, I tried eta Orionis (1"5-4/5), but here I could not see some interesting, because of strong seeing. Something longish
was visible (168x) but not sure.