I am a rep for Vortex. Having said that, I have had the opportunity to spend a lot of time at the Cabela`s optics counter this year. As mentioned, the Razor HD would be a better comparison to the Conquest. However, I own a set of Viper HD 10x42 as my personal binos. They have done an excellent job for me the last 4 years ive owned them. I have done many side by side comparisons in store to Zeiss , Swaro and Meopta. The Viper HD is a very strong runner compared to the Conquest. Only time I think you would ever notice a difference MIGHT be in very low light conditions. Not one customer that I sold binos to at Cabela`s picked the Conquest over the Viper or Razor after doing side by side comparison. A couple people chose the Swaro EL over the Razor and the Meoptas were never a factor.