強悍的 APM-Riccardi Super ED 0.75x 平場減焦鏡

[社長]

Sorry overlooked the small size & full size versions! About the Equinox 120ED, the problem is how to mount the reducer on it. Some modifications are needed.

for Equinox, use Skywatcher reducer la.

[社長]

德國傳來三張100%原圖照片可作檢視(大圖下載需時)：

- 由Stephen Linhart拍攝
- 以APM 80/480測試(非LOMO鏡頭)
- 沒有做平場的
- 因為80小鏡用鋁管，100或以上為Kruppax CNC管，前者要求的溫度補償要大些

來郵以Google Translate翻譯
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Test results with APM 80/480 Riccardi Reducer

Hi Markus,

Here are a few of you with the results made ​​available to APM 80/480 with Riccardi Reducer.

They were taken with a ST-8300 with Baader LRGB filter set.

I hope you like it, you can them for promotional purposes, provided the author; use) will be happy.

I still have a couple of Halpha RGB images, which I certainly have difficulties with the processing. If you wish I can ask you to edit the raw data available. I still do not have much experience in image processing.

Other experiences I have had with the device:

Focus drift with temperature changes

From about 4 ° temperature difference between the recordings, one can detect a slight difference in sharpness.

Otherwise it's a very beautiful and powerful combination. The attached pictures were taken without flatfield and there is no visible vignetting.

Best regards,
Stephen Linhart

[社長]

----- Original Message ----- From: "Holger Saßning" <webmaster@astropictures.de>
To: "APM Telescopes" <anfrage@apm-telescopes.de>
Sent: Sunday, October 23, 2011 3:07 PM
Subject: NGC6960


NGC6960
>
> Bilddaten:
> Esprit 120ED with APM/Riccardi Reducer 0.75 x ,
> Atik383 mit Halpha und OIII,
> 12 X 15min each Filter,
> 21. and 22.10.2011 Berlin and Bugk (south Berlin)
> Author: Holger Saßning

[社長]

Dear Massimo

I work with my own 102mm f/7 Apo and I can confirm - great results. You are right, the reflex was from a ring inside the tube.

Now my results are perfect - no bad edge - because my apos has the better mechanic, than skywatcher. They make a good job with your reducer - congratulations.

Best regards

Wolfi

-----Ursprüngliche Nachricht-----
Von: APM Telescopes [mailto:anfrage@apm-telescopes.de]
Gesendet: Montag, 24. Oktober 2011 21:38
An: Massimo Riccardi
Cc: Ransburg, Wolfgang; Savio Fong
Betreff: Fw: Astrofotos zu Werbezwecken

Hi Massimo, Wolfi and Savio

the image is from last days from souther berlin with Skywatcher Esprit 120 and reducer. he state that the rotationring which holds the focuser to the tube was slightly loose, therefore you see a bit tilt , but otherwise for such light polluted location great and no reflection on the bright star Alnitak, which means the coating must be top and need no changes

Markus
----- Original Message -----
From: "Holger Saßning" <webmaster@astropictures.de>
To: "APM Telescopes" <anfrage@apm-telescopes.de>
Sent: Monday, October 24, 2011 8:55 PM
Subject: Re: Astrofotos zu Werbezwecken


> Hallo Markus
>
> im Anhang ist mein Fotoversuch an meiner Hassliebe .... dem
> Pferdekopfnebel.
>
> Wie schon geschrieben habe, ist mir bei der Aufnahme etwas verkippt,
> siehe links oben.
> Die Ursache war eine der 3 Schrauben die den Rotationsring am OAZ halten.
> Eine war nicht ausreichend angezogen und das Gewicht der Kamera hat zu
> einer leichten Verkippung geführt.
>
> Aber der Reducer produziert keinerlei Reflexe an Alnitak und das soll
> was heißen, also top.
>
> Gruß
> Holger
>

[社長]

Hi Everybody,

the famous optical designer from Italy , Massimo Riccardi designed for
APM-Telescopes a universal Reducer/Flattener , which is supplied with diffrent
settings as a universal reducer for russian made TMB-APM-LZOS Apos, but with
resetting also working same good with the new Synta/Celestron 120 mm F/7 and 150
mm F/7 FLP 53 triplet apos and also with APM and Astrotech Apos and United
Optics triplets. They might also work on many other apos, but w ehave no zemax
datas to guarantee that.

several infos you can find on our new webside at this link

http://www.apm-telescopes.net/en/index. ... =false&anz\
ahl=20&manu=0&cat=0

one of the first images we got from a combo Skywatcher 120/7 + Rediccardi
Reducer , see here
http://www.apm-telescopes.net/media/ima ... II_web.jpg

A friend have tested the large once with a full format camera and also got
perfect stars in center and at the edge, but he still working on his image
restauration, before publishing

we have shipped out last week many more and expecting soon many images from
users.
Its a breakthrough many owners of apos have been waiting for it for very many
years and the TMB Yahoo group is to my knowledge almost dead.

we have for LZOS apos 3 models, all using the same lenses, but diffrent airgaps
for optimisation

Set 1 is for LZOS 152/1200
Set 2 is for LZOS 203/1420
Set 3 is for all other lZOS apos with diffrent backfocuse setting.

the image circle covered is 52 mm with very low edge vigneting.

we have a second modell with smaller lenses same perfect for 42 mm image circle,
but still working with a 52 mm image circle if you can live with a larger edge
vigneting of about 35 %

we supply matched camera adapters on request and focuser adapters.

The revolution here is the superb performance, the very low edge vigneting and
only about half or less price then any available today from other companys for
such big image circle.

In total we have sold last 12 years thousands of TMB-APM-LZOS Apos where maybe
one or the other wants such a reducer flattener

get in touch with me if you want one and post your imaging results here at the
frefractor group, that other learning > its available now

clear skies

Markus Ludes
APM-Telescopes

[社長]

再來兩張，配APM 130/780的：

[社長]

趕及過年前，為一個台灣用戶造的接環。包括幾部份：

- Feather Touch 3545調焦座至M82接環

- M82準直校正環(因為平場鏡及相機重量會導致小型調焦座拗曲，但3545不會有問題)

- 平場減焦鏡

- 平場減焦鏡至Borg濾鏡盒接環

- Borg濾鏡盒，可用52mm濾鏡以減低全片幅拍攝的週邊減光

- Borg M57系統相機接環，比傳統T2接環加大通光孔徑，減低全片幅拍攝的週邊減光

另有0.1, 0.2, 0.3, 0.5, 1.0mm墊片以調節不加，或加不同濾鏡後影響的後焦點。

明天寄出，希望這位台灣用戶能把自己的APM鏡大力發揮，拍些精彩照片。

[willis]

趕及過年前，為一個台灣用戶造的接環。包括幾部份：

- Feather Touch 3545調焦座至M82接環

- M82準直校正環(因為平場鏡及相機重量會導致小型調焦座拗曲，但3545不會有問題)

- 平場減焦鏡

- 平場減焦鏡至Borg濾鏡盒接環

- Borg濾鏡盒，可用52mm濾鏡以減低全片幅拍攝的週邊減光

- Borg M57系統相機接環，比傳統T2接環加大通光孔徑，減低全片幅拍攝的週邊減光

另有0.1, 0.2, 0.3, 0.5, 1.0mm墊片以調節不加，或加不同濾鏡後影響的後焦點。

明天寄出，希望這位台灣用戶能把自己的APM鏡大力發揮，拍些精彩照片。

Is it for APM 130/780?

[社長]

no, APM 115/805 APO

[社長]

第二批下週德國發貨。

[willis]

第二批下週德國發貨。

What about the Riccardi sticker? Will it be arrived in this shipment?

[社長]

沒跟APM要那貼紙.... 原來你想要？

[willis]

有好過冇！不過唔急，下水先！

[社長]

標準型號，在400mm f8 RC上，成像極之優秀

注意樓下的Spot diagram已有點過火了，其實740nm對改濾鏡單反，甚至冷凍相機用的Astrodon濾鏡，也是用不著的，亦即在我們常用範圍，全片幅下星像是在25um方格內：

http://www.astrodon.com/custom/_2e2a/co ... forWeb.jpg

http://www.sciencecenter.net/hutech/idas/uibar-iii.htm

而高橋的旗艦攝星鏡FSQ106，Spot diagram只計算至Ha波段656nm：

http://www.takahashi-europe.com/en/FSQ- ... .spots.htm

這是一個例子，歐系及日系攝星鏡其實對自己有不同水平的要求。

Quote
-------------------------------------------------
That’s incredible ,my reducer seems working in very accepttable manner even on RC.

As you can see below I added it (the bigger one) to a 400mm F/8 RC and this is the performance on the 24x36 format:

If you don’t consider the 740nm it works fine even at the edge and the focal reduction is 0.75x (from F/8 to F/6). The bfl as you see is 91 mm.

Do you think there could be a new market for my reducers?

On the other hand and unlike the others reducer our reducer includes Ed glass which allows for a minor color spreading.

Massimo

[willis]

Wow! This is another excitement! I think one needs to make an adapoter for connecting the RC & the reducer. But 400mm RC is too big for most of the people. Don't know if the reducer work for 200mm/F8 RC. If the performance is good, then another interesting focal length 1200mm for me.

[社長]

若適於用400 f8的RC，基本上也適用於較大或較小口徑的f8以及較長焦比的RC，當然成像的Spot diagram表現有些許分別，最優化的後焦點也有少許差異，200 f8當然沒問題。

以APM-TMB系列的APO來說，這減焦鏡有三種不同的鏡間距離：

- 203/7
- 130/1200 and 152/1200
- 其他

所以RC應用第三類。

[willis]

以APM-TMB系列的APO來說，這減焦鏡有三種不同的鏡間距離：

- 203/7
- 130/1200 and 152/1200
- 其他

所以RC應用第三類。

Is it the same as my Riccardi reducer (105/650)?

[社長]

your reducer is type IV, custom lens space and custom optimized by Massimo Riccardi

[willis]

The only one in the universe!