本帖最后由 funder 于 2019-4-17 13:43 编辑
事实上目镜性能对望远镜的性能影响非常大，Fujinon这里是个严重短板。不过Fujinon本来就不是给天文设计，只是兼职，最大的市场是船用和岸用观测镜。兼职总是干不过专业的，这个兼职选手在这个领域几十年没有人竞争，现在也该退休了。
裕众150现在发布的是ED版本，不是APO版本（SD版）, 不过以后可能会出升级的SD版。
我没比较过裕众和富士，但是Cloudynights上有人先拿到了，并且给了评论：
https://www.cloudynights.com/topic/651162-apm-150ed-review/#entry9157384
摘录和Fujinon 150的比较部分：
简要翻译：
有个机会和我朋友的富士150MT比较了一下，简单来说就是没得比，原因有几条：
富士是固定25倍，比较窄的目镜使得富士好像残疾；
裕众（APM）标配的UF目镜在各个方面都秒杀了富士的目镜（blow it away)，特别是整个视场的锐度，色差。
富士的6mm出瞳直径毫无用武之地，除非你能到真正黑暗的天空下；一般来说，很多深空天体最好用的倍数应该是35~60倍；
这只富士是直视的，所以看45度仰角以上时很痛苦；
富士在亮星下色差明显，暗星也会受到影响而不完美；
有一个机会我给裕众（APM）配上了32mm增山目镜（标称85度，实际有人测量是77度左右），这样两者就都是25倍，做一个“公平”比较。在日落时分观测猎户座大星云时，裕众比富士更容易更早看到目标。
当只有富士150时，这些本都不是问题，但是有句话说“没有对比就没有伤害”，裕众150只是(把大双的水平）提升到了另一个层次。
I had a chance to compare a friend's Fujinon 150MT to the APM150 and it basically comes down to several reasons why there is no comparison.
The primary reason is being fixed at 25x with somewhat narrow feeling eyepieces makes the Fujinon severely handicapped. The APM with the 30mm UFF simply blows it away in every category, particularly in sharpness across the field and color fringing. The large 6mm exit pupil of the Fuji does not work great unless you have darker skies, and best powers for framing many deep sky objects is from 35x to 60x.
The Fujinon has straight through viewing which makes it awkward above 45 degrees for me using the factory pedestal.
The false color in the Fujinon shows up distinctly on bright stars, while making fainter stars less than perfect.
Using a pair of 32mm Masuyama eyepieces to match powers at 25x, I was looking at the Orion Nebula complex during sunset and it was easier to pick out stars in the APM well before they were visible in the Fujinon.
These factors would not be as problematic if I didn't compare the Fujinon against the APM, but the APM150 just takes it to another level.
猜测裕众ED版的售价应该不高于富士的普通版，如果不是为了高密封的航海用途，实在想不出有买富士的理由。
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