香港天文论坛
http://www.hkastroforum.net/viewtopic.php?t=10276
测试者：香港镜王陈玉麟先生
Dear Telescope Enthusiasts,
After waiting for such a long time we finally get a clear night with stability good enough to test the new Maxivision 5 inch APO. Frankly speaking I just couldn’t belief my eyes.
The new Maxivision 5 inch apochromatic triplet telescope just performs so good than I cannot belief my eyes. It could easily be pushed up to 100X per inch and it gives a contrast, resolution and color correction, according to my memory, still better than that of the AstroPhysics 130 EDT.
Memory is not reliable. So we carried out an AB comparison test on the spot. Target was the lunar surface.
It happened that we just had a Thomas Back 7 inch Apochromatic Triplet telescope by the side and so we AB compared the performance of the TMB and Maxivision. In a magnification of about 300X ( TMB 7 inch f/8 used a Pentax XL 5.2 mm eyepiece, gives 275X. Maxivision 5 inch f/7.5 : used a TeleVue 2.5 X barlow + Takahashi LE 7.5 mm eyepiece gives 318 X ) Except that the TMB is much brighter everything we saw are identical in both telescopes, with the Maxivsion slightly at a higher contrast, and slightly at a less color aberration. We could hardly detect any advantages ( except more brightness ) in the Thomas Back comparing with the smaller Maxivision.
Thomas back is already regarded as the top performer in triplet apochromatic refractor. So is it high time for us to think twice before spending money on a Takahashi TOA 130, AstroPhysic EDT130 or a TMB 5 inch ? Since at 1/3 the price you get a same performance ( or even better ) Maxivision 5 inch APO.
I didn't say that Thomas Back is not good. Indeed Thomas Back performed excellently. But the fact is, the Maxivison is just too good.
Best regards
Chan Yuk Lun
翻译：TONGKW
致：各位天文望遠鏡狂熱人仕
在等待了很長時間，我們終於有一個足夠清晰與大氣穩定的晚上來測試此新的 Maxvision ”大有可觀” 5 英吋口徑複消色差折射鏡。我可以坦白地說我只是不能相信我的眼睛。
此新的”大有可觀” 5 英吋口徑複消色差折射鏡的表現是這麼好我不能相信我的眼睛。此鏡可以輕易地被推往放大率每英吋100x，而據我記憶所及此鏡的反差，解像力及色差修正是仍然較壹枝 Astro Physics 130EDT 優勝
記憶是不可靠的。所以我們進行了一次 A 與 B 的對比測試。目標是月球的表面。
我們剛剛有了一枝 Thomas Back TMB 7 英吋口徑 f/8 複消色差折射鏡在一起作此對比測試。在放大倍率約 300x （TMB 用賓得 XL5.2 毫米目鏡得出 275x ”大有可觀”用 TeleVue 2.5 × 增焦鏡加上高橋 7.5 毫米目鏡得出 318 x ）。除了 TMB 的影像有極為比較高的亮度， 這 2 枝鏡的其他我們所見都是相同只就是”大有可觀”有些微較高的反差及些微不及的色差修正。
我們幾乎不能夠測出 TMB 與”大有可觀”在比較上有任何優勝（除却光亮度）。
TMB 已被認為是最佳表現的三片鏡片複消色差折射鏡。因此我們以後要三思而後才可花錢購買高橋 TOA130 ，Astro Physic EDT130 或 TMB 5 英吋？皆由於以 1/3 價錢的”大有可觀”你可以得到相同表現（或更佳）。
我並沒有說 TMB 是為不好。事實上 TMB 的表現是非常出色。但事實上”大有可觀”是太好。
謹致問侯
陳玉麟
除了香港资深天文爱好者的测试外，台湾PK·Chen也对maxvision ED APO给出了很好的评价
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本帖最后由 大观星仔 于 2007-10-20 20:31 编辑 ]
