Beware of the Eden Quality ED 8x42!
I had one ( see Renze's link to my thread ), but the diopter adjustment ring went berzerk in less than a week! It's plastic, situated just behind the focusing wheel, and has clickstops and a little notch to adjust.
When I was out birding with the bin, I suddenly noticed that the close focus had improved all by itself, from 3.5m to less than 2 m!
Strange, I thought. Then I couldn't get trees at 300 yards sharp in focus, the focus wheel just banged at the infinity edge and anything over 200 yards was blurred.
I noticed that the diopter ring was the culprit, wandering freely, never to be able to be adjusted properly again! Rubbish build quality!
After I experienced a similar mishap with the Zeiss 7x42 FL's diopter adjustment ring that went berzek after a while, I swore never ever to buy a binocular with a combined focus wheel/diopter adjustment on the central hinge. What did I do? I bought the Eden Quality 8x42 ED sight-unseen from the internet! What was I thinking?!
After TWO faulty diopter adjustment designs I will steer clear from ANY diopter design placed on the central hinge, in combination with the focus wheel. I will exclusively buy binoculars with a separated focus wheel and diopter adjustment on the ocular, from now on.
That said, the Eden HD on the other hand, has the diopter on the right ocular, so this is OK and to be cheered very loudly!
Best regards,
Ronald