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220-06-16
45㎝ F/4反射鏡のフーコーテスト画像。
この鏡はHabble optics社のサンドウイッチミラーです。セル変更で鏡を外し際に友人にテストして頂きました。鏡の真ん中に小さな穴がありますが全体的には過修正らしい。F/4惑星用に使えることが分かりました。
2020-06-16
Foucault test image of 45cm F/4 reflector.
This mirror is a sandwich mirror from Habble optics. A friend tested it when I removed the mirror to change the cell. There is a small hole in the middle of the mirror, but it seems to be overcorrected overall. I found that it can be used for F/4 planets.
Foucault test image of 45cm F/4 reflector.
This mirror is a sandwich mirror from Habble optics. A friend tested it when I removed the mirror to change the cell. There is a small hole in the middle of the mirror, but it seems to be overcorrected overall. I found that it can be used for F/4 planets.
