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APM/Riccardi 0.75 x Apo Reducer/Flattener

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#1 APM M.Ludes

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Posted 10 May 2012 - 02:55 PM

The new Riccardi triplet Apo Reducer 0.75 was now successfully tested on the new Skywatcher Esprit Triplet FPL 53 Apo 120 mm F/7 = same scope as new Quantum 120 mm F/7 , it converts the original F/7 Instrument in a fast F/5.25 Astrograph.The reducer offers a mechanical backfocuse from end of reducer to Chip of 73.85 mm with a spot diameter at the edge of the Field of only 6 microns and a very low vigneting at the edge of only 20% for the smaller Riccardi reducer M63 which cost include focuser and camera adapters US $ 890 at current exchange rate. This reducer is available from stock by APM-Telescopes. You can order them also through your local dealer who has to contact us.

The Riccardi Reducer was now also tested with success on the TEC 140 Apo and TEC 180 Fluorite and the chinese triplet FPL 53 Apos from german based Telescope-Express company.



Massimo Riccardi, famous optical Designer from Italy, designed for APM-Telescopes a new 3 element ( with ED Glas) 0.75 x Apo-Reducer/Flattener Corrector for all TMB-APM-LZOS Apochromatic Telescopes. Tests show that it also works on Apos from other manufacturers very well

The corrector was designed to work with most diffrent telescopes, by changing little the backfocuse only.

The Coating of the corrector is optimized for modern CCD Camera spectral range.

The correctors performance was designed to have very zero to very low edge vigneting, tight spots nd a large corrected image circle

We choosed in the design 2 diffrent size of reducers

Model 1, small version has at both ends standart Metric M63 x 1 thread for which many adapters available off the shelf. It screws straight into the 2.5" Starlight Instruments Feather Touch focuser and new APM 2.5" Focuser

This small version has a corrected image circle up to 22 mm for the APM Triplets 80/500 and 80/480 and corrected image circle of 42 mm for all APM/LZOS Apos 100 mm up to 152 mm and a backfocuse from corrector mechanics to CCD chip, little above 70 mm

This smaller version works perfect with our Apo Telescopes from 80 mm up to 152 mm diameter with 2.5" and even better with 3" focusers

Model 2,big version has a corrected image circle up to 52 mm and a backfocuse from corrector mechanics to CCD chips, little above 75 mm. The big version has at both ends a metric M82 x1 thread and works perfect with 3", 3.5" and 4" focusers. Here also many adapters available off the shelf.

our own Maschine shop can and will make you any necassary adapter for perfect spacing and your focuser.

The big corrector is optimized for all TMB-APM-LZOS Apos 100 mm up to 254 mm diameter , plus APM Apo 107/700 and works also well on some chinese Apos with similar sizes and f-ratios

Riccardi - Reducer / Flattener Adjustment Flange large

For our new Riccardi Reducer / Flattener we can offer you additional for the exact adjustment at tilting this new adjustment flange. With three screws it is possible to adjust the reducer exactly straight to get the maximum sharpness over the whole field.

each corrector comes with both ends screw on metal covers.

The details for spot and vigneting can be found on our new webside apm-telescopes.net , or drop us a email and we send you links

Prices :

- small M63 apo reducer Euro 504 ( about $ 655 )
- big M82 apo reducer Euro 546 ( about $ 755)
- push pull optical axis adjusting flange Euro 66 ( about $ 87 )
- adapters for your focuser and your cameras on request

Delivery time :
- the reducers are in stock
- adapters need 1 to 2 weeks


Reduction Info of the Apo with this new reducer corrector
- APM 80 mm f/6 > f/4.5
- APM 80 mm f/6.25 > f/4.68
- APM 107 mm f/6.5 > f/4.87
- APM/LZOS 100 mm f/8 > f/6
- APM/LZOS 105 mm f/6.2 > f/4.65
- APM/LZOS 115 mm f/7 > f/5.25
- APM/LZOS 130 mm f/6 > f/4.5
- APM/LZOS 130 mm f/9.25 > f/6.9
- APM/LZOS 152 mm f/7.9 > f/5.9
- APM/LZOS 175 mm f/8 > f/6
- APM/LZOS 203 mm f/6.9 > f/5.17
- APM/LZOS 203 mm f/9 > f/6.75
- APM/LZOS 228 mm f/9 > f/6.75
- APM/LZOS 254 mm f/9 > f/6.75

there is no similar ED Reducer on the market with such great performance and such low price.

This Reducer will also work on the Stellarvue and Astrotech Triplet Apos very well

drop us a email and we send you all infos about polychromatic spotsize and vigneting infos

thanks for your orders




see images with a 80 mm Apo here http://www.apm-teles...CNC-2.5-TA.html

and with the APM 107 mm Apo here http://www.apm-teles...PM-Focuser.html


Details find here http://www.apm-teles...d=1180&sorting=

convert your Apo into a High End Astrograph with the APM-Riccardi 0.75 x Apo-Reducer/Flattener

#2 APM M.Ludes

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Posted 11 May 2012 - 09:20 AM

http://www.apm-teles...IRED-ALLG-A.jpg
http://www.apm-teles...IRED-ALLG-B.jpg

http://www.astromart...9/746965-25.jpg

thanks to a customer request Massimo Riccardi checked how this Reducer works on a Ritchey Chretien and to our surprise he found it works perfect on Ritchey Chretien Telescope

http://www.astromart...9/746965-26.jpg

#3 APM M.Ludes

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Posted 02 June 2012 - 02:57 PM

now it was also successfully tested at Meade ACF Telescopes :-), so we can offer it now also as Apo Reducer for ACF Telescopes

#4 APM M.Ludes

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Posted 02 August 2012 - 03:14 PM

we have the both versions , small and big in stock for any day shipping

#5 APM M.Ludes

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Posted 01 September 2012 - 02:22 AM

Working on many apos from many manufacturers very well, covering full format chip sizes with very low edge vigneting. Now in stock

#6 APM M.Ludes

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Posted 30 December 2012 - 10:03 AM

Maybe the best Reducer/Flattener for full format chips available on the market for most available apos

#7 APM M.Ludes

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Posted 26 February 2013 - 04:04 PM

we have all models in stock, give us a call now

#8 ahopp

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Posted 26 February 2013 - 04:47 PM

I have the Meade 14" ACF, will reducer/flattener work?

I also have the Meade 6000 80mm APO, will it work?

Can you provide benefits that I would enjoy on my scopes with this product?

Tony

#9 Daud

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Posted 27 February 2013 - 11:13 AM

Markus,what would be the impression using it for visual observing on fast F6 apo triplet with an Ethos eyepiece ?

#10 APM M.Ludes

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Posted 27 February 2013 - 03:29 PM

Hi Tony

it will work perfect on your 14" ACF yes

it will NOT work on your 80 mm apo, because you need minimum a 2.5" focuser and minimum 7.1" backfocuse

the benefit you will have on the meade is a apochromatic corrected 0.75 x FOV for imaging for full format CCD chip

#11 APM M.Ludes

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Posted 27 February 2013 - 03:30 PM

Daud

like any corector, this is also designed for imaging work only.No benefit for visual , sorry

#12 ahopp

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Posted 27 February 2013 - 07:23 PM

So, if I use this with my 14" ACF:

1) Reduce my focal length
2) Further flatten the field
3) Eliminate need for the Meade Reducer/Flattener

I use a Canon 5D Mark II, which is full frame, so this should be awesome. Which unit would I need?

Tony

#13 wasyoungonce

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Posted 27 February 2013 - 09:24 PM

Markus...has anyone tried the FR/FF on ES127 or any of the 127ED triplet F7.5, 952mm FL scopes?

Reason I ask is that ES has a hole in their inventory for a FR/FF for the 127ED.

Thanks

#14 APM M.Ludes

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Posted 28 February 2013 - 08:54 AM

Tony

excactly , one german used such Meade , my reducer and his full format CCD and thanks to him we know it works :-)very well. Then i asked Riccardi to check how our apo reducer works with RC and he was himself surprised how well it works with RC .
if you want one, drop me a email to anfrage@apm-telescopes.de and we will get you the quote

#15 APM M.Ludes

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Posted 28 February 2013 - 08:55 AM

Brendan

the ES 127 has a 2" focuser only and my reducer requires minimum a 2.5" focuser , so with 2" focuser it will not work, sorry

#16 ahopp

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Posted 28 February 2013 - 09:29 AM

Markus, does the reducer/flattener screw on the visual back of the scope, or, does it slide in like an eye-piece?

Tony

#17 wasyoungonce

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Posted 28 February 2013 - 04:47 PM

Sorry Markus I wasn't clear, I (like many others) have a Moonlite CFL focuser on my 127ED.

What I meant to ask is: "has this FR/FF been tried on a 127ED"?

I tried TV RFL-4087 with 2.5" custom adaptors and it didn't flatten the field so I am looking for a good FR/FF that is known to work with 127ED.

#18 APM M.Ludes

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Posted 02 March 2013 - 05:47 AM

Tony


the reducer has a M63 x1 Thread and needs a threadet adapter for the scope

#19 APM M.Ludes

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Posted 02 March 2013 - 05:51 AM

I have not sold yet one to a owner of such telescope , main reason, all standart 127 has a 2" focuser !

#20 Psyire

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Posted 16 March 2013 - 10:35 AM

Has this been tested on any ED doublets? Just wondering what the chances of it working on an Equinox/Eon 120? Of course I would have to upgrade to a 2.5" focuser as well.

#21 APM M.Ludes

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Posted 16 March 2013 - 02:12 PM

I think it was not tested on "any" ED, but it works on very many very good, the chance is very big, but you maybe need a variable adapter to test the best focuse






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