The extension tubes for the Zeiss Telementor and the Telemator tubes are a must have accessory.

This set includes the following 3 extension tubes:

• 40mm M44
• 60mm M44 (rare to find)
• 70mm M44

More information on the Anamorfose website

Carl Zeiss Jena, Helical focuser for Telementor I , M44

Original Helical Focuser for the Zeiss Jena Telementor I 63mm f:830mm.

Rare to find accessory.

More information on the Anamorfose website

Moon, Zeiss Jena 1000mm f/5.6 Spiegelobjektiv

M13 in Hercules, Zeiss Jena 1000mm f/5.6 Spiegelobjektiv

The 1000 Spiegelobjektiv (mirror lens) was manufactured always in a Pentacon Six mount with appropriate35mm mount adaptor included ( M42, Exakta, & Praktina ).

This is one of the mythical lenses made by Carl Zeiss Jena with a fantastic finishing.  Mechanical and optical a masterpiece.

Tested the Spiegelobjektiv with a Sony Alpha 7S and it's an excellent lens.  Also for astrophotography

More information on the Anamorfose website

Lens diameter 60mm tube 65mm length 89cm.
1 terrestrial eyepiece that can be removed.
Internal focuser with one knob.

History
Boucart Opticien Fabricant à Paris, 35 quai de l'Horloge
Boucart started activities as optician in Paris in 1790. The company was specialized in microscopes but they also sold telescopes.

In 1820 Boucart was taken over by Kuivert Opticien, Paris. See the inventory of the Nachet Collection, 1929
Boucart isn't longer mentioned in the catalog of "L'industrie Française des Instruments de Précision" from 1901 - 1902

More information on the Anamorfose website

Rare Steinheil large zenith prism for refractors.
Steinheil was one of the most famous European telescope brands from the 19th century.

The zenith prism is a rare accessory.  Also the size is rare.  It's probably made for the large professional refractors.

More information on the Anamorfose website

Secretan 10cm large table top telescope +/- 1850

Early (+/-1855) 10cm (!) Secretan table top telescope with all the eyepieces and finder scope.
the scope has a very beautiful dark varnish. No cleaning needed. Will leave it as it is.

19th century table top telescopes have normally a diameter of 60mm or 75mm.  Larger models are very rare.

A very nice example of the classic French terrestrial and astronomical refracting telescope, here in a perfect original condition with all original lacquer entirely preserved and in original wood case.

Comes with a rare finder scope

Secretan, Marc Francois Louis

Nationality:  Swiss

Brief Bio:  1804-1867, mathematician; scientific instrument maker, Swiss

until 1844 - professor of mathematics at Academy of Lausanne;
1840 - worked with Friedrich von Martens and Samuel Heer producing daguerreotypes;
1844 - moved to Paris;
1845 - partnership with Lerebours as Lerebours & Secretan; used joint name until 1880s and beyond.
1855 - after retirement of Noel Paymal Lerebours became sole proprietor of Lerebours and Secretan, and signed himself as "Maison Lerebours et Secretan / Secretan, Successeur" and as "Opticien de S.A.M. l'Empereur." He also did work for the Paris observatory.
after 1860 - Secretan also issued catalogs as sole proprietor after 1860
Collaborated with William Eichens, designer of telescopes.
1860s - worked with Foucault, improved silvering techniques.
1867 - succeded by his son, Auguste Secretan (1833-1874) and nephew, Georges Secretan (1837-1906 )
1874 - succeded by his cousin, Georges.
c. 1900 - succeded by Paul Victor Secretan

More information on the Anamorfose website

School telescopes were a tradition in Germany in the 1920's.  In Eastern-Europe several telescope makers continued to make them after the 1950's.

I didn't know of Meopta making such school telescopes.  Couldn't find any information about this scopes.

Meopta is still known for excellent optics.  Tested the school telescope and the optics are sharp and very good contrast. 

The mount is very solid.

More information on the Anamorfose website

This is a vintage marine telescope, not a contemporary copy.

Originally the telescope was mounted on the railing on the deck of a ship. 

It's a very heavy instrument with excellent optics.  The views are realy spectacular.  Crisp sharp with a good contrast.

The telescope has a fixed eyepiece with a large eye relief.  Focusing is very smooth.

The telescope was probably made between 1900 and 1920.

More information on the Anamorfose website

A pyrometer is a device to the remote temperature-so without contact-to measure. The functioning of the pyrometer based on Wien's displacement law.

The pyrometer measures the wavelength in the infrared or visible light in which an object gives off most radiation to determine its temperature.

This device was created and marked by Eugène Ducretet in Paris around 1900. The item is in good working condition and is finished in brass with its original paint. Length of this object is 24.5 cm. Eugène Adrien Ducretet (November 27, 1844 -1915) was a French scientific instrument manufacturer, who performed some of the first experiments on wireless telegraphy (radio communication) in France.  He never completed a formal education, leaving primary school at age 15. After several years apprenticed to Paris engineer Paul-Gustav Froment, Ducretet opened his own workshop in 1864 at 21 Rue des Ursulines where with a few employees he manufactured classical physics research, teaching and demonstration apparatus, such as galvanometers, Wimshurst machines, and Crookes tubes. Over time his reputation grew and he became instrument supplier to several large Paris educational and scientific institutions. He was awarded a gold medal for his quality instruments at the 1878 Paris Universal Exposition and from then on his firm was a regular presence at important international expositions, winning another gold at the 1881 International Electricity Exposition in Paris. He was made a Knight of the Legion of Honour in 1885.

More information on the Anamorfose website

Beautiful direct vision antique spectroscope. The spectroscope works very well.

Is a large and heavy instrument.

Probably made around 1900.

The split mechanism is in brass and in perfect working condition.  Inside the tube is the prism system.

The spectroscope has a filar eyepiece.

More information on the Anamorfose website

Dramatic version of the Mercurius Transit

Mercurius Transit: 10cm Polarex prime focus

Mercurius Transit: 30cm Cassegrain f:44

Combination of Mutar and Barcom

Full frame Sony

Pier of the 4" Polarex - Unitron equatorial mounted refractor

The ATOS project becomes a Turtle project (my totem sign).  Slowly advancing but with a lot of perseverance like a turtle.

About every 3 weeks I travel to the Provence in search of the right spot for the observatories and the overnight stays for the visitors.  Every time I leave with  an agenda with about 7 or 8 appointments for visiting different places.  The selections of the sites starts behind my computer: searching for the right ads, contacting the sellers, gathering all the needed information, checking if the location is situated in a dark area, etc.

Then leaving for a trip of about 3.000km.  Meeting a lot of interesting people and visiting the most beautiful places.  I learn a lot about the local life.
I still have a feel good in this region.  Every time I feel more at home in the Provence.  I don't feel as a tourist or occasional visitor but more as a prospector in search of the right valuable source.

As a result of the visits I start to build a local network of friends and other people who help us.  (Special thanks to Jean-Luc, Caroline and Erik).

A problem with the different sites is meanly the organisation of the domain: not enough free space for the observatories, bad condition of the buildings, an inappropriate price or not suited for visitors.
But the main problem is obtaining the building permit for the observatories.  Most of the dark location are part of a natural reserve and it's very difficult or almost impossible to obtain a building permit for the observatories. Certainly for observatories with domes.  So the observatories will be "simple" roll-off roof observatories.  This observatories look like garden sheds.  This kind of observatories can very well be integrated in the landscape.

For locating the dark areas in the Provence I use a detailed light pollution map.  On site the Sky Quality Meter is my most important instrument.  A sky of minimum 21.5 mag/arcsec² is a base.

Meanwhile our house in Belgium is for sale.  An important step in the project. 
The whole family will be moving to France.  This means also looking for schools for my kids.

The work at the classic telescopes continues.  The 12" Cassegrain is ready.
Continue to restore the focusers and other accessories.  It 's to cold in the warehouse to work at the large scopes.  Within a couple of weeks the works will start again in the warehouse.

To be continued

The retrofit of the 30cm Cassegrain is completed.
The original telescope dates from the early 1960's.
New spider, renewed mirror cell, primary mirror cooling, new focuser and backplate. Repainted and varnished.

New find. 90mm f1170mm refractor on altaz fork mount.
The lens is extremely good. Sharp and good contrast. The lens has no coating. Must be made between 1900 and 1914. No indication of a brand.
Original wooden box for the telescope and mount.

The eyepiece has a strange diameter: 22mm. No standard diameter

The central colon of the mount be raised.
The mount and tripod are very stable.
The telescope, mount and tripod have been repainted by a former user.

The accessories of the large refractors and the cassegrains were hand made by Frantisek Kozelsky I the 1960’s.
He was clearly inspired by the Zeiss Jena accessories.

Strangly the eyepiece diameter is 30mm.