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发表于 2015-11-25 05:19
来自： 美国 ATT用户
来自：http://www.cloudynights.com/topi ... on-binomania/page-2
Hi Edu, i try to explain my impressions.
A- I think that is necessary to judge the BT performance in proportion of it optical scheme: it is a simple short focal lenght achromatic. Do not look at the price, for now.
If you look in the Vixen with this premise, the images of the deep sky from 25 to 60X are good. Obviously moon and planet show more chromatic aberration.
Obviously I can not forget my experience with the Kowa Highlander, the APM 100 ED APO and Docter Aspectem. These binoculars are very sharp and don't show C.A. I like BT126 only for the brightness and lightness.
It 'obvious that it is not able to compete with high-contrast images of Kowa Highlander or APM APO but Kowa does not show, under the same sky, the arms of M51 that I see, however, in the Bt126.
If you want a big binoculars, enough compact, to watch the sky deep, at medium-low magnifications the BT126 might be for you.
The APM, however, is almost a binoscope, less bright, maybe, but could show you moon and planets at high enlargementes.
. Obviously my 2 cents.
B- It's possible, but i think it's preferable to ask your distributor, also for reasons of liability. The model I tried was well collimated to 60X, but if you have a good telescope, I do not think you will leave it at home
to watch the moon with BT 126.
I think there are two types of fans. Those who love the great fields of view and those who like to see even some "speck of light" (read, galaxies). In the second case, the BT126 could bring some benefit.
Personally I am undecided between the two, because, during the day, i use Kowa 883 and in astronomy i observer with Takahashi FS128. For these reasons I am quite addicted to see high-contrast images even in daytime. Excuse me for my poor english. |
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发表于 2015-11-25 14:33
来自： 上海市 移动数据上网公共出口
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