Re: not happy with Leupold light gathering
It's my belief that it has ALOT to do with the COLOUR of the light transmitted.
I've been testing a whole load of stuff over the last year or so. And recently have been playing with some reasonable Chinese stuff. One of these appears to be MUCH brighter but a light meter shows the lumens received to be near identical. Sadly dont have a spectrograph handy.
It's why (I think) I cant get on with Zeiss, Swarovski and Leupold. And yet S&B, Kahles I'm OK with. Zeiss actually make my eyes hurt. I seem actually to GENERALLY be more comfy with the older coatings used by the Russians - Odd isn't it.
I am aware that my eyes are very sensitive in this respect for other reasons - but it's just a thought.