Posts Made By: Markus Ludes

Just as a info to anybody , please don't wonder if we do not reply from now till August 6 any email, we are on business trip to Russia to make your products even better

thanks for notice

Markus Ludes
APM-Germany

In case somebody drop me a email, we are able to reply again by monday september 29, when we are back from our major starparty

thanks and have fun by the discussions

Markus Ludes
APM telescopes, Germany

Today we received the first of the new lightweight maksutov Cassegrain Telescopes from INTES MICRO with follow improvements
1, weight reduction to now only 37.7 pound, so they are in the similar range now like AP, TEC and Aries, but with much faster delivery time
2, new drak green transparent multicoating, from front nearly no more visible
3, now the standart quality is 1/8 wavefront shown by Zygo testreport

best wishes
Markus

New Telescope Modell from INTES MICRO/Russia

ALTER M 615

This new Telescope from INTES MICRO is a 6"F/15 ( 152 mm f/2.250 mm ) Maksutov Cassegrain with smaller central obstruction of about only 25% include secondary baffle. Delivery is similar as on the M603, with moving mirror focusing with zero image shift, piggy back camera holder, 8 x 50 japanese finderscope, transporting handle, cooling fan 12 Volt, interf. Testreport, paddet transporting case, mountrail, 2" William Optics Stardiagonal with 97% Reflection, 30 mm 80° BW-Optic 2" Ultrawideangle eyepiece. The tubeweight is about 6 kg ( ~ 13.2 lbs)

The APM retail price in Europe incl. 16% VAT is Euro 1.390
The APM Exportprice for foreigner countrys is US $ 1,390

Delivery starting nin February/March 2004

we taking now pre-orders

Be informed this telescope with such configuration will be available exclusivly from APM/Germany. Other dealers will not come with cooling fan, Zygo Testreport, Williams diagonal or 30 mm 80° eyepiece

Markus Ludes

INTRODUCING
CORONADO PST™ (PERSONAL SOLAR TELESCOPE)
A SUB ANGSTROM HYDROGEN ALPHA TELESCOPE FOR SOLAR OBSERVING. WILL GIVE EXCELLENT VIEWS OF PROMINENCES AND SURFACE DETAIL.

Design Parameters of Coronado PST™

1) Optical:

· Objective focal length 400 mm
· Clear Aperture 40 mm
· Wavelength of Operation 656.3 nm (H-alpha)
· Nominal Spectral Bandwidth of Operation <0.1A
· Blocking Efficiency 10¯5
· Internal optical re-focusing mechanism provides compatibility with most conventional eyepiece lenses.
· Built in Sun finder


2) Mechanical:

· Advantage: telescope body does not have moving or extending parts.
· Objective threaded to take SolarMax40 and create <0.6A telescope.
· Approximate Dimensions of Main Body 15” L x 2.1” W x 3” H
· Eyepiece (not CEMAX) included with initial offering.
· Case available as an add on. Shipped in molded foam that fits directly into custom case.

best wishes

Markus

I like to say thank you these days to all my customers who asked questions but also bought used Zeiss stuff from me. We do our best to find more used Zeiss Items for you folks next year.
For this moment I building my own Zeiss APQ Traveller, I came across with a APQ 100/640 lens used before as collimator and build now a nice tube around. A APQ 130/1000 lens from collimator was offered to me too, but now I bought this year already 2 pc original Telescopes Zeiss APQ 130/1000. I am still stocking Zeiss AS 63 mm lens and C 50 mm lenses. A friend of mine bought recently a Zeiss AS 200/3000 for whom we build now a nice foldet tube.

FRor my personal future large Apo I keep the famous Zeiss 50 mm 70° widefield eyepiece and the 100 mm 90° Huygens

again wish you all merry christmas , a happy new year and many wonderfull nights with your Zeiss equipment

Markus Ludes

hi friends

just ready for the year 2004 we introduce now our new modified Maksutov Cassegrain Binocular 150F/12 with moving mirror focuser, 1.25" eyepiece holders for interchangable eyepieces.
The Bino comes include a tilt-in-build mechanism and is ready to be used with aManfrott 400 Photo head for terrestical use. For astronomical use a additional tilting adapter is neccassary. The bino is such strong and perfect build, that collimation never can get lost and that it handles power up to 400 times with no douple image at all.

the price for such bino is $ 4,990

please see more images in next 2 emails

Markus Ludes

hi friends

just ready for the year 2004 we introduce now our new modified Maksutov Cassegrain Binocular 150F/12 with moving mirror focuser, 1.25" eyepiece holders for interchangable eyepieces.
The Bino comes include a tilt-in-build mechanism and is ready to be used with aManfrott 400 Photo head for terrestical use. For astronomical use a additional tilting adapter is neccassary. The bino is such strong and perfect build, that collimation never can get lost and that it handles power up to 400 times with no douple image at all.

the price for such bino is $ 4,990

please see more images in next 2 emails

Markus Ludes

hi friends

just ready for the year 2004 we introduce now our new modified Maksutov Cassegrain Binocular 150F/12 with moving mirror focuser, 1.25" eyepiece holders for interchangable eyepieces.
The Bino comes include a tilt-in-build mechanism and is ready to be used with aManfrott 400 Photo head for terrestical use. For astronomical use a additional tilting adapter is neccassary. The bino is such strong and perfect build, that collimation never can get lost and that it handles power up to 400 times with no douple image at all.

the price for such bino is $ 4,990

please see more images in next 2 emails

Markus Ludes

Hi Everybody, as promissed I post when I have news.Today I received 2 next Orion 80 ED ( sold again).

How these both ??????????????

1, Colorcorrection: The colorcorrection in this both at my daytime benchtest ( tonight it seems to be clear so I will also check in the evening under real sky). Outside-defocused there is deep red rings, inside-defocused, there is the green ring, same as in other sample. Infocuse ( sharp point) the airydisk looks rather white soroundet with a slightly redish first diffraction ring.If you do a very little defocusing than you can see immediatly the green or reddish color. Both defocused images show either reddish or greening/yellow fressnell rings, where a high colorcorrected apo show white fressnelrings.

To show you very accurate how this colorcorrection looks on the high quality bench, look at this image made from a 3 years old Sky 90.
http://aberrator.astronomy.net/scopetest/assets/images/results_R9001.jpg
The 2 right images showing defocused outside , its excactly same what the orion show. 2 left images showing on Sky night more purble, which is in the Orion more deeper red.
I have in stock only Zeiss, TMB and small high end Tak FC scopes, so I cannot compare the Orion colorcorrection really against Tak douplet Sky 90 or Tele Vue douplet, but from my memory the Orion is in any case a bit worser

2, spherical correction.
Scope 1 of today show real good spherical correction similar to the what the Sky 90 show ( but no zone visible in the Orion )and have a clear sharp snap in focuse
Scope 2 is same as scope 1 , but show in center a zonal deffect, somewhat brighter as you see in the Sky 90 image but still have a real sharp snap in focuse.

best wishes
Markus