I am looking at the Zeiss Conquest HD binos in 8X42 or 10X42 and possibly the Cabelas (Meopta) Euro HD 10X42. A 3 are about the same price. The Zeiss say 90% light transmission and the Cabelas say 99.9% light transmission. I have owned cheaper binos in several different sizes but want a good pair. I have a small pair of Pentex 10X24 UFC III that I have had for many years and used some. I cannot afford the Swarovski or Leica stuff. My question is : For general big game hunting in the USA and PG hunting in South Africa(trip set for May 2013) which power would be most usefull. Most of my hunting her(USA) I have not used binos much partly due to conditions and not having a really good pair of Binos.