Arne Bischoff
Member

Thankyou!Welcome to Birdforum!
You're right. I should have bought the NL 10x42 in the first place. But I was absolutely fascinated by the resolution and handholdability of the 12x. For daytime use, I love it. But I do a lot of bird monitoring in dusk or dim light and dark woods for the local national park and here the exit pupil of the 12x42 is a major constraint. This is why I bought the EL 8,5x42 for a really healthy discount later. The 5mm exit pupil is enough for my 42 year old eyes in lowlight and I did not want a 56 bc it's just too big. In theory, this makes for a perfect combination. Both are optically excellent, lightweight, portable and I have always the right tool for the job:I don't quite see this... if true, why didn't you already get NL 10x42? I've been using 10 and 15x for 30+ years now (8 and 15 initially but never mind) and it still strikes me as the perfect combination.
- Daytime observations, wide spaces, long distance: NL 12x42
- Low-light birding, woodlands: EL 8,5x42
But this is where my indiosyncrasies kick in. Which ever bino I take for the day, I wonder, if the other would not have been better in this occasion. When I take the EL, I miss the hyper clarity and detail. If I take the NL, I miss the low light performance of the 5mm exit pupil. This is stupid and I know it. I tried the EL10x50, but the eye relief is not large enough for my glasses. It is noticeably tighter than the 8,5x42 and it's annoying although the overall view is great.
And this is where I have high hopes in the NL 10x52. I could sell both my binos and have one glass to rule them all. I know, 10x is working for me in terms of detail and I would have the light of the large exit pupil.
So this is my reasoning. Sorry for oversharing, but you asked (kinda)