Other Telescopes and their Masters 

Jörg Peters wants to collect as much light as possible in to both eyes. Therefore he built an 28 inch sophisticated all aluminum bino telescope. The Alt/Az is computerized with a Dan Gray / Mel Bartels servo control.

Such precisely made mirros of that size I saw never before.

More Details here

Bigger, Thinner, Faster! Kai Kretzschmar openes new horizons at large thin mirror making. His 28" f/3,1 mirror is made of Schott Borofloat at 25 mm edge thickness leaving less than 11 mm in the middle! Using modern interferometric test, sophisticated test support and local polishing techniques make this feasible.
More pictures here
Timm Klose doesn't like to stay on ladders. Therefore he designed his 20" f/4 as Lowrider. Most parts are made of aluminum at a total weight of 35 kg only. The mirror was refigured by Roland Herrmann.

Details: finished, raw Assembly, top finished, top raw, mirrorbox finished, mirrorbox raw

In the meantime Tim has built several Ultralight Dobsonians and has traveled with them to Namibia. See Website

Werner Reimann's 20" f/5,6 Lowrider with only 27 kg (60 lb) total weight. Due to the folded lightpath a small ladder is sufficient even though the focal length is 2.88 m. The mirror is selfmade out of 25 mm thick Borosilicate glass. Werner is a master of large ultrathin mirrors and has made several telescopes for his club members. See Astronomischer Verein Schwerin

His latest extreme mirror is a 64,5 cm f/3,7 out of 25 mm Borofloat

14z_gesamt.jpg (79788 Byte) Jörg Peters minimalist all aluminum air travel Dob at under 14 kg (30lb).
More pictures here 
gesamt_2.jpg (72435 Byte) Achim Strnad's finished mirror pulled off the bolts out of the board where it was stored, fell on the tiles and broke into countless pieces (see picture). But he is a real mirror master, this accident couldn't stop him from making a new one that became at least as good as the first one. The telescope is called Phoenix, weights 23 kg (50 lb) in total and is assembled via 8 bicycle quick clamps in a view minutes. 
To Achim's ATM-Pages
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Image by Wolfgang Rohr
Ernst Schoeberl (2. from left) showed up at ITT with a full carbon telescope in sandwich construction at a total weight of 23.5 kg. The mirror weights 15.2 kg. The whole carbon structure tips the scale at 6.8 kg!
More pictures here
peter_10_gesamt.jpg (93454 Byte) Peter Wickelmaier with his 10" f/6 with a sled focuser. This allows enough travel for use with a binoviewer wothout compensation lens. The mirror is self made
More pictures here
Erhard Hänssgen enters the Meter class with his 42.1 inch f/4.5 monster scope. As you see from the picture, a quite "handsome" size. The primary mirror thickness is 2.5" only. Various fans blow from the back and the side, to cool the mirror. He chose mahogany ship-plywood and coated it with epoxy. The instrument is transported in a trailer.
Looking at the Orion Nebula you loose all dark adoption.
More pictures here
Pictures from ITV 2003

Pictures from setup and break down procedure  ITV 2003
Many dditional pictures on the webpage of Robert Houdart
joerg_25_1.jpg (82758 Byte) Jörg Peters impressed at ITV 2002 with his 25" f/4.5 nobel Dob, which he just finished for the meeting after 3 years of building. The powder coated all aluminum altazimuth construction is equipped with digital setting cycles and stepper motors with GOTO function. The instrument can be disassembled into two parts and transported in a van.
More pictures here
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click on the images to expand them to higher resolution

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Klaus Jünemann's 6 kg (13 lb) light and ultra compact 8" Chapeau Claque at the International Telescope Meeting Vogelsberg (ITV) 1996. All components fit into each other, the trusses are foldable and fit into every suitcase or backpack. The 4 parallel truss design is structurally inferior, but it works fine at this size. In order to bring the balance point down, counterweights are being used in form of wooden boxes mounted low at the bearings, which can be filled on the field with stones, bolts or eyepieces.

At a later stage this scope was equipped with digital setting circles. 

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The Master himself with an improved version of his 9" Bino at the Bavarian Telescope Meeting (BTM) 2000. The eye separation is adjusted at one of the primaries with a turning knob on a long shaft and a cord mechanism. The smallest possible separation is is even sufficient for my small head. Finally I could enjoy high in the Alps my favorite pancake edge on galaxy NGC 5907 floating in 3-D.
s_hammel_bino_1.jpg (55536 Byte) Stefan Hammel's award winning 3,1" f/6,6 Mahogany Bino. The eye separation can here be adjusted by sliding one of the tubes along it's axis. Wonderful craftsmanship of a professional woodworker.

 

b_schatzmann_1.jpg (53460 Byte) Inspired by my 17.5" Aristarchos Bernd Schatzmann showed up with his18" wood art: Inclined mirror box corners and crescent moon shaped altitude bearings. I decided for similar bearings on my 24" too. A bit heavier than my 17.5", but solid like the rock of Gibraltar.
b_schatzmann_2.jpg (47610 Byte) ...Mirror mirror in my hands...
r_benner.jpg (46576 Byte) Rafael Benner's 30" f/5 with the appropriate large footprint leather at ITV 1996. Extreme aperture fever infection risk! At good conditions the Helix fills the eyepiece with overwhelming details. It even shows structure in the 6-th component of  Stephan's Quintet NGC 7320C!
ruedigers18zoll1.jpg (24048 Byte) Ignoring all good meant advises of other ATM-ers Rüdiger Heins made his 18" f/5 out of 24 mm (0.95") plate glass and supports it on bubble warping laminate (see image). Result: It works fine, the mirror became very good and that is what counts at the bottom line! The highlights: Accessible mirror cell from the back side, one ring top, cheap aluminum trusses from tent surplus store fixed with bicycle clamps.

The coating was not set yet, when he started his next one: A 24.4" f/4.5. Here are Rüdiger's ATM pages: http://www.geocities.com/ruedigerheins

ruedigers18zoll3.jpg (22189 Byte)    ruedigers18zoll2.jpg (29848 Byte)    ruedigers18zoll4.jpg (37512 Byte)    ruedigers18zoll5.jpg (37098 Byte)

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Jörg Peter's compact 8" f/4 travel scope at the ITV 2001. The trusses are all connected with each other. The ultra low Helical Crayford focuser is home made by a friend. All aluminum parts are powder coated, they look really professional.

For transport all parts fit into each other, the altitude bearings are rotated into a horizontal position, the rocker serves as the cover, wonderful work

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gundula_18f345.jpg (44807 Byte) Gundula Hinrichsen's ultra short 18" f/3,45 came to the Telscope meeting ITV 2001 into a Porsche. Elegant straight forward construction. At 1,55 m zenith height even small people can avoid the ladder.
btm_volker.jpg (96344 Byte) This gentleman is taken into this list in advance. His dust collecting 10" mirror still waits to be build into a travel scope.

Further telescopes with own web pages see Links
Further telescopes of the Munich ATM-group (German Text)

ITV awards 2007
ITV awards 2005
ITV awards 2004
ITV awards 2001
ITV awards 1997

You want to enjoy one of the mid European telescope meetings? Information is here

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