대기수차 보정렌즈 - 러시아 Aries

행성과 같이 밝은 대상을 고도가 낮을 때 보면 대기의 굴절로 인해 색수차가 보이게 됩니다.
이를 제거 하기 위해 일본에선 안경점용 프리즘을 이용해서 쓰기도 하였는데,
러시아의 광학회사 Aries에서 이를 제대로 만들어 제품화 하는 모양입니다.
시제품이 AP의 사장에게 넘어가 제작과 판매 일정을 잡는가 봅니다.

2인치 천정미러 타입으로 프리즘이 들어 있어 이를 돌리면...
행성상을 집접보면서 대기수차를 보정하는 위치를 찾는 방식인데, 좋은 성능을 보인답니다.

다음은 AP의 간단 리뷰입니다.


Date: Fri, 20 May 2005 23:19:50 EDT
From: chris1011@aol.com
Subject: New stuff just arrived from Aries

Hi All,

I just received a shipment of long awaited eyepiece optics from Aries. So, I
will be quite busy for the next 2 weeks  checking and assembling them into the
barrels.

Valery also sent me a very interesting toy, which I tried out this evening
since it's fairly steady seeing and clear for once (almost full Moon of course).
This toy is a 2" diagonal with a built-in rotating pism set which can be
tuned to exactly cancel out Atmospheric dispersion.

Right now Saturn is low in the west (10pm). Using a 4mm eyepiece on my 160
refractor (300x), Saturn has a definite red and blue dispersion with my normal
diagonal. The Cassini division is only apparent near the anses and lacks
contrast. With the Aries dispersion corrector diagonal, I can dial in an exact
compensation, and the planet is pure white with no dispersion colors visible. The
Cassini division is now seen all the way around, and is dark black with
excellent contrast just like it would be straight up. This device will extend
planetary viewing, especially for Jupiter which is lower in the sky for me than
Saturn was at its best position. Right after sunset, the air around here gets real
steady for about 1/2 hour, but Jupiter is quite low and does have significant
dispersion color. This device will really help viewing during that fleeting
but steady time.

I have no idea what this device will sell for, but it looks like a very good
accessory for you planetary nuts.

Roland Christen