I bought a new pair of Leica 10 x 42 bins last year and when I use them my eyelids and upper cheeks swell and go puffy. Has anyone else experienced this? It goes down gradually over a few hours following birding.
No such experience - I have Leica 10x42 and I know others who have them. Is it possible you are allergic to something in the casing? If it continues it might be worth arranging a doctor's appointment and making sure you have the symptoms when you see him by using the bins just before. Hope you work this out.
Robin
Wow I’ve never heard of that before.
I hope you manage to sort it put.
I can't image anything much worse than be allergic to my bins.
Rich