No apologies necessary I understand where you were going with that. I do agree that it’s not just about exit pupil and transmission. That’s why I made mention to lesser glass elements and also equivalent coatings which can have a great effect in low light conditions. We definitely seem to have a difference in our opinions as to which pair of binoculars between an Habicht 7x42 and an SF 8 x 42 is brighter in very low lighting. I have not tried anything that was brighter in very low light than thsee Habicht’s, and that includes 742 UVHD+, 10x56 SLC’s, 8x42 SF and 8x42 Noctivids. It’s the only reason I keep the Habicht’s considering what I consider multiple shortcomings, tunnel vision FOV, very heavy focuser and a small eyebox with short eye releif.
I know there are a few other members here that have tried both that should be able to weigh in.
I know what you mean. But my point is not wich is the brighter Glass. My point is in wich glass i can compare the differences in shaddow Areas better. And here is the SF for me the Winner. And i dont think the better Twilight Factor from 8 time mag is the point, because a Dialyt 7x42 is in real Low Light for my Eyes much better than the Habicht 7x42. As i Bought my First 7x42 Habicht years ago (think in 2015) i bought The Habicht Special for Low light viewing. And compared to my SF and Dialyt he cant Keep up. So I sold the Habicht. A few Months ago i bought a New Habicht 7x42 GA again, because i like The Brightness, sharpness and Coloration plus 3d effect from this Glass for my hiking and mountain Sports. But in low Light i dont use it much...