etc
Well-known member
I already have the most excellent Zeiss 10x54 HT and am debating whether to get the 12x or 15x.
My concern about 12x50 is that 12x is not a good match for the 50m objective in terms of exit pupil size. Making it harder to use. OTOH, both binoculars have an almost identical exit pupil size. I suppose I am really comparing them both versus 10x56 which has a more generous 5.6mm exit pupil size.
I get that the EL line is more Alpha than the SLC line. My concern about the 15x is that it's not hand-holdable. And will be married to a tripod and thus useless most of the time. However I wonder if that's not a bad thing. Meaning for off-hand viewing I can use 10x54 HT and for tripod use, 15x56 SLC.
Or just get the 12x50 EL for a more compact experience. 12x might be overall more useful than 15x, given a wider FOV and lighter weight. My 12x54 HT is already kind of heavy, the SLC has to be even heavier.
I think I would have preferred a 10x50 EL (but it's overdrive past infinity is insufficient for my needs, only 5 diopters versus 7 for 12x50 EL and 8 dioptrs for the SLC line).
A 12x56 configuration would probably appeal to me more than a 15x.
One factor heavily in favor of the SLC is that the 15x56 has a much better twilight factor.
(As a footnote, I went from 8x42 to 10x54 and never regretted it. It resolves more and obviously more vibrant at night. Just the moonlight is enough to make it useful while with the 42x can't see anything at all.)
Bottom line, the bigger objective is more enticing but the 12x power is more enticing as a general purpose power versus a niche 15x which seems to be a great match for astronomy.
My concern about 12x50 is that 12x is not a good match for the 50m objective in terms of exit pupil size. Making it harder to use. OTOH, both binoculars have an almost identical exit pupil size. I suppose I am really comparing them both versus 10x56 which has a more generous 5.6mm exit pupil size.
I get that the EL line is more Alpha than the SLC line. My concern about the 15x is that it's not hand-holdable. And will be married to a tripod and thus useless most of the time. However I wonder if that's not a bad thing. Meaning for off-hand viewing I can use 10x54 HT and for tripod use, 15x56 SLC.
Or just get the 12x50 EL for a more compact experience. 12x might be overall more useful than 15x, given a wider FOV and lighter weight. My 12x54 HT is already kind of heavy, the SLC has to be even heavier.
I think I would have preferred a 10x50 EL (but it's overdrive past infinity is insufficient for my needs, only 5 diopters versus 7 for 12x50 EL and 8 dioptrs for the SLC line).
A 12x56 configuration would probably appeal to me more than a 15x.
One factor heavily in favor of the SLC is that the 15x56 has a much better twilight factor.
(As a footnote, I went from 8x42 to 10x54 and never regretted it. It resolves more and obviously more vibrant at night. Just the moonlight is enough to make it useful while with the 42x can't see anything at all.)
Bottom line, the bigger objective is more enticing but the 12x power is more enticing as a general purpose power versus a niche 15x which seems to be a great match for astronomy.