Well,i pretty much agree with all you..Binos are only tools,just forget about it and keep birding...It was shocking to discover it,though,because is a deeper scratch than your average cleaning mark,and cant think of the cause..My scope fell once,objective first ,on a gravel beach,and got a smaller mark than this one!!!!..
I transported the ZEN,in my recent trip to Spain,inside their hard case,it really feels secure ..maybe once or twice i put them inside my backpack,while birding,with the objective covers on,and maybe ,maybe,the objective cover fell off ,and they got scratched..but i dont know with what!!!...all my sharp instruments(pocket knifes and tools) stayed home ,observing airport security codes..( this prove that despite all security measures,scratches happens)..
In any case,I can not see any difference in performance,although i havent looked at stars yet.I hope no refraction spikes appear as a consequence of this.One of the things i love about the ZEN ED is how sharp stars show,just pin point and free of any coma(my unit anyway)
I dont think this has anything to do with a stress fracture,it looks like a surface scratch,although it went into the glass ,beyond coatings...If by any chance ,the scratch changes in size ,or become a crack,i will then contact ZEN..
Funny that i noticed this JUST when i got home,It was very exciting to do some birding in my country.When i lived there,i wasnt that much into birding,..It was a real pleasure to slowly discover all the most common ,and rare,species ..I am so happy i can appreciate and enjoy all those wonderful creatures,and is so interesting to rediscover my own country as a fantastic and "exotic" birding paradise,after all those years..I will move back there,hopefully in the next year,and i will look for a place to live next to the limits of the DELTA DEL EBRO NATIONAL PARK..You are all invited to visit!..Climate+birds+GASTRONOMY!!!!!
by the way,the ZEN ED were a delight to use and have become my favorite binocular ever,..definitely an instant classic!
Gosh i already forgot about that scratch!