I disagree with most here. I have Fujinon 7X50's and 10X50's. These are amazing binos with no need to focus (individual eye focus) as well as flat plane imaging). In short I think they are as good as swarovski's. They have less eye strain than any bino I have ever used (including EL's because of the focusing issue). They are much cheaper and much heavier. Not trying to talk you into these, but wanted to give you some background on what I use. I am also young with good eyesight.
If I am looking for barbary sheep or coues deer, then I use the 10's, but its difficult for me to glass free hand with them. I have to sit and rest on my knees for any real glassing and a tripod is still much preferred. I can't imagine using a pair of 12's without a tripod. The eye strain is immense trying to free hand these. I have a buddy with 12's who can't find anything becuase he can't stand to look through them for more than 30 seconds at a time. I find way more (as in all) animals with my 7X50's. If I am doing a hunt with lots of glassing then my 10's go, but I make a point to sit and glass or sit with tri-pod and glass. If elk hunting or something that is not purely glassing and I am not looking for ears and tails etc., then I take my 7's.
So it all depends (on how you are going to use them), but If I were buying the swarovski EL 12X50's, they would be strickly used on a tripod and I would know that going in to it.