Celestron advertises this for some of their Skymaster binos. I've seen it in the 25X100 ads.
"Four-element objective lens for ultra sharp focus across the field of view"
So what's it all about? Did they count the prisms as objective elements or did they count left and right together? Or did they really use four elements in each objective?
dan
"Four-element objective lens for ultra sharp focus across the field of view"
So what's it all about? Did they count the prisms as objective elements or did they count left and right together? Or did they really use four elements in each objective?
dan