A:
Technically, no. To be assured waterproof/fogproof binocs you need to buy nitrogen filled ones (and they will be billed as water/fogproof). In Nikons, this would be their action extreme line, (which also have fancier eyecups) costing more than action. However, I hand out four pairs of 8X40 actions to Yellowstone guests on my tours everyday in all weather conditions--my only precaution is not leaving them in a cold vehicle overnight, which I can do with extremes--and have had no problems with fogging (till someone drops a pair in a creek someday!).