They make two different 8 and 10x40 conquests-just make sure you know which ones you are paying for.
The better and more expensive ones are the Conquest ABK which have the more efficient Abbe Konig prisms which are the most effective on the market-least light loss because of less reflective surfaces than standard Pechan roof prism like in the standard conquest (and just about every other roof prism design).
The ABK conquest is brighter and a little sharper than the standard conquest.