Home Forums Hunting & Shooting Hunting Optics Leica Trinovid vs Ultravid

My best guess would be that they did what the DEVA testers did. You duplicate the spectrum of light for both daylight and twilight, they are different, and pass it through the binocular. Then you measure how much of it comes out the other end with a photo specktral meter.
If these figures are correct, the Ultravid should be noticably brighter and sharper than the Trinovid.
Did they say when each of the tested binoculars were built ? Most optics makers are continually tweaking their products to improve their performance. An older BA, for instance, may not be noticably as bright as the latest Ultravid. But a late model BN might be very close or even essentially equal. E