I have little use for the scopes with objectives over 40mm. They end up towering above the normal eyeline and seldom improve lowlight sighting appreciably. In the last 30 years, I can't remember a single time when my scope failed to give me a useable sight picture during legal shooting hours. I've even shot coyotes on snow by moonlight using a standard 40mm front lense.
Just this morning, I put the crosshairs on a deer fully 15 minutes before shooting time and the weather was heavily overcast. Last night, I stayed after shooting hours just to watch for deer leaving cover at last light-they would have been easily shootable almost 30 minutes after shooting time again, overcast sky conditions rather than a clear backlit sky.