今早收到德國來信,這個減焦鏡可以修訂名稱,同時兼容RC鏡了:
F/10 :
http://www.deepsky-online.com/test/acfr ... ORIGIN.jpgF/8 :
http://www.deepsky-online.com/test/acfr ... CCARDI.jpgF/7.5 :
http://www.deepsky-online.com/test/acfr ... CCDT67.jpgF/6.4 :
http://www.deepsky-online.com/test/acfr ... CCDT67.jpg-----------------------------------------------------
翻譯成英文
-----------------------------------------------------
Savio
Find below images made with GSO Rc and a comparation between Riccardi Apo
Redcuer and AP CCD Reducer
We will name the same reducer in the shopw as a RC Rediucer, this increase a
lot the range where the Riccardi can be used
Gerrit right be carefull with your impression the Riccardi offers full
format chip and the Meade ACF Baffle is here the limit
-----Ursprungliche Nachricht-----
Von: Gerrit Viola [mailto:gerrit.viola@web.de]
Gesendet: Freitag, 2. November 2012 11:40
An: W.Ransburg - Teleskop-Service
Cc: Markus Ludes [APM Telescopes]
Betreff: Re: Reducer Contest / BPndig
man sieht deutlich, das der Riccardi-Reducer, bei den schwacheren Sternen
einen Tick harter Abbildet. Er arbeitet damit besser als der AP bei F/7.5.
Am 02.11.2012 um 11:37 schrieb Gerrit Viola <gerrit.viola@web.de>:
>
>> Hallo Wolfi, hallo Markus
>>
>> anbei die versprochene Testaufnahme mit dem Riccardi-Reducer und
>> einem Vergleich mit dem Astrophysics 67CCDT
>>
>> F/10:
>>
http://www.deepsky-online.com/test/acfr ... ORIGIN.jpg>>
>> F/8
>>
http://www.deepsky-online.com/test/acfr ... CCARDI.jpg>>
>> F/7.5
>>
http://www.deepsky-online.com/test/acfr ... _CCDT67.jp>> g
>>
>> F/6.4
>>
http://www.deepsky-online.com/test/acfr ... _CCDT67.jp>> g
>>
>> Ich denke die Bilder sprechen fur sich. Aber nicht tauschen lassen. Der
Riccardi bedient fast Vollformat und das Limit ist hier das ACF !!!
>>
>> Ich werde wohl hoffentlich noch dieses Jahr Gelegenheit haben, den
Riccardi am MPT300 zu testen. Auch eine Coma-Free-Optic (Aspharischer
Fangspiegel).
>>
>> Bei F/13.3 jedoch! Dennoch: Der AP CCDT67 oder der Borg Super Reducer
sollten das MPT300 auf 22 mm Bildkreis bis auf F/6.8 drucken.
>>
>> Gruse,
>> Gerrit Viola
>>
>>
>>
>
-----------------------------------------------------
原文
-----------------------------------------------------
Savio
Find below images made with GSO Rc and a comparation between Riccardi Apo
Redcuer and AP CCD Reducer
We will name the same reducer in the shopw as a RC Rediucer, this increase a
lot the range where the Riccardi can be used
Gerrit right be carefull with your impression the Riccardi offers full
format chip and the Meade ACF Baffle is here the limit
-----Ursprungliche Nachricht-----
From: Gerrit Viola [mailto: gerrit.viola @ web.de]
Posted: Friday, 2 November 2012 11:40
To: W.Ransburg - Telescope Service
Cc: Markus Ludes [APM Telescopes]
Subject: Re: Contest Reducer / BPndig
you can clearly see that the Riccardi Reducer, with the fainter stars
depicts a tad harder. He works so better than the AP at F/7.5.
On 11/02/2012 at 11:37 wrote Gerrit Viola <gerrit.viola@web.de>:
>
Wolfi >> Hello, hello Markus
>>
>> Attached the promised test recording with the Riccardi Reducer and
>> A comparison with the Astrophysics 67CCDT
>>
F/10 >>:
http://www.deepsky-online.com/test/acfr ... ORIGIN.jpg >>
>>
>> F / 8
http://www.deepsky-online.com/test/acfr ... CCARDI.jpg >>
>>
F/7.5 >>
http://www.deepsky-online.com/test/acfr ... _CCDT67.jp >>
g >>
>>
F/6.4 >>
http://www.deepsky-online.com/test/acfr ... _CCDT67.jp >>
g >>
>>
>> I think the pictures speak for themselves. But do not be fooled. the
Riccardi will serve almost full frame, and the limit is the ACF!
>>
I will probably >> hopefully this year will have the opportunity to
Riccardi to test on MPT300. A Coma-Free-Optic (Aspheric
Secondary mirror).
>>
At f/13.3 >> however! Nevertheless, the AP CCDT67 or Borg Super Reducer
should MPT300 on the 22 mm image circle to press on f/6.8.
>>
>> Regards,
Gerrit >> Viola
>>
>>
>>
>