OneMoonGoon92 said:
How do the Leica's perform in lower light conditions? (For those that have used them of course)
There is no appreciable difference when comparing the better $1k binos, as long as you are comparing the same configuration. They all perform somewhat decently, including the Leica. No 10x42 does great in low light. However, most owners will accept what performance they do get, mostly because they don't have a large exit-pupil bino to compare them to.
If low light performance is truly a concern, then you should be looking at a good 10x50, or possibly a 56mm if you can stand the weight.
If you would like a recommendation from someone who has used almost everything under the sun -- a truly excellent 10x that I would consider to be in the realm of a "low-light" bino is the Swarovski 10x50 EL SV. Smaller than a lot of other 10x50's, and with a wider FOV than their 10x42. It is one of the best binos you can buy, of any size, maker, or price. These might be discontinued, but they pop up on the used market from time to time. Another great one is the Zeiss 10x56 Victory FL. These have been discontinued for years, but are nonetheless a great pair of binos. They do hold a bit weird though.
C