I tried a used 12x50 BN in a store in Tuscon recently, and was very impressed by the central sharpness, 68deg field, and compact size (exactly the same width and thickness as a Zeiss 8x42 FL, and only 1/2 inch longer). I just couldn't resist, and bought it. I'll be using it for stargazing, handheld, sitting comfortably and steadied, reared back in my big wicker armchair.
I really didn't believe such a high powered binocular could be this good. The star images are so tight, they are just beautiful. I love double stars, so that is the main thing to me. I've been using a 10x50 Fujinon for this range. In comparison, the Fujinon's higher transmission is noticeable, as is its sharper edge view. The two are equal in central star image quality. But, my eyes vary from night to night, so I can't just set focus and forget it like some astro buffs claim you can, but have to tweak every session, sometimes midway as my eyes tire. The easy center focusing of the BN makes its sharpness easier to realize. The BN's 12x, still not too much to steady when well braced, its 10 oz lower weight, and wider field, are enjoyable. With its excellent stray light control (a "glaring" weakness of the Fujinon 10x50) and very good CA suppression (how can this be with normal glass at 12x??) it could also be some fun for long-range seated duck spotting.
I also use a 16x70 Fujinon for stargazing in the same way, but its optics are not as good as the smaller binoculars, deep as it will take you in the sky. I usually stop it down to 60mm so the stars aren't so blobbly. Plus it is so arduous to handle that monster.
The 12x50 may well turn out to be my ideal hand held astro binocular. Of course there is the Nikon SE 12x50, which is brighter, lighter, and narrower fielded but sharper at the edge. But something about Trinovids calls to me, despite my injured (by a Zeiss FL) relationship with my 8x42 BA. I am not happy that the FL beats it, more like mad. I wish I would snap out of this CA-sensitive, brightness-loving phase.
The 12x50 Leicas of all series, BA through HD, have been discussed here by several forum members with never a bad comment. Thanks for the consciousness raising.
Ron
I really didn't believe such a high powered binocular could be this good. The star images are so tight, they are just beautiful. I love double stars, so that is the main thing to me. I've been using a 10x50 Fujinon for this range. In comparison, the Fujinon's higher transmission is noticeable, as is its sharper edge view. The two are equal in central star image quality. But, my eyes vary from night to night, so I can't just set focus and forget it like some astro buffs claim you can, but have to tweak every session, sometimes midway as my eyes tire. The easy center focusing of the BN makes its sharpness easier to realize. The BN's 12x, still not too much to steady when well braced, its 10 oz lower weight, and wider field, are enjoyable. With its excellent stray light control (a "glaring" weakness of the Fujinon 10x50) and very good CA suppression (how can this be with normal glass at 12x??) it could also be some fun for long-range seated duck spotting.
I also use a 16x70 Fujinon for stargazing in the same way, but its optics are not as good as the smaller binoculars, deep as it will take you in the sky. I usually stop it down to 60mm so the stars aren't so blobbly. Plus it is so arduous to handle that monster.
The 12x50 may well turn out to be my ideal hand held astro binocular. Of course there is the Nikon SE 12x50, which is brighter, lighter, and narrower fielded but sharper at the edge. But something about Trinovids calls to me, despite my injured (by a Zeiss FL) relationship with my 8x42 BA. I am not happy that the FL beats it, more like mad. I wish I would snap out of this CA-sensitive, brightness-loving phase.
The 12x50 Leicas of all series, BA through HD, have been discussed here by several forum members with never a bad comment. Thanks for the consciousness raising.
Ron
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