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Precise cuts of the new marble are required to match the original Vermont marble inside the Idaho State Capitol, Boise, Idaho in June 2009. The majestic south face of the this building has been a landmark of southern Idaho for almost a century.

Using only stone and water. No steel tools here, friends.

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Peru & Bolivia - April-May 2008

My Encore Precision copy bass.

The utmost precision is needed of these operators who are cutting and drilling parachute packs in an eastern factory, Manchester, Conn. Their function is beneath continual close supervision. Pioneer Parchute Firm (LOC)

 

Image by The Library of Congress

Rittase, William M.,, 1894-1968,,...

 

Read more about Lastest Precision Cutting News

 

(Posted by a Precision Machining China Manufacturer)

Men's mountain bike winner Julien Absalon, Beijing Olympics 2008.

My entry for the contest "Engineering 5".

6:00 in the morning. My insomnia was as persistent as ever and I had been up for nearly 48 hours straight when I ventured into the woods and found this tiny masterpiece. Spiders terrify me but I've always been amazed by their webs. I was shaking with fear as I crouched down close to the ground to capture this shot. Thankfully my love for the beauty in nature is more powerful than my fear!

 

Now had it been a banana spider, I wouldn't have been closer than 5 feet!

Among my camera collection, FOCA's are probably the ones that mean the most to me. Called sometime with respect the « French LEICA’s », the FOCA’s are very far from any simple Leica copies. They were independently designed and prototyped in the clandestine by clever French engineers of the O.P.L. (« Optique & Precision de Levallois ») company in Paris, France, during the WWII. They were then manufactured in series as soon as possible after the war end in 1945 to 1962 in various versions. Overall about 150.000 units were produced (for the focal curtain shutter bodies). FOCA’s are amazing of precision, optical quality, and a real joy to use.

 

I selected this mid-range PF2B FOCA circa 1955 and its normal lens OPLAR 1:2.8 f=5cm for a relaxing photowalk enjoying a sunny mild afternoon in Lyon, France. For all the views the lens was equipped with 42mm push-on filter, AUV for the two first frames then, for the rest of the film, a FOCA Yellow x2.5 filter. A Genaco metal shade hood was aditionnaly used for all the views. For the fun, I added an external collimated viewer FOCANOX f=5cm.

 

The film used was a 36-exposure Ilford Pan 100. Expositions were determined for 100 ISO (or 50 ISO to compensate the absorption of the Yellow filter) using an Minolta Autometer III lightmeter fitted with a 10° finder for selective metering privileging the shadow areas.

 

View Nr. 28: 1/100s f/6.3 focusing @ 15m (Yellow filter)

 

Stele to Pierre Dupont*, March 3, 2025

Jardin des Chartreux

Cours du Général Giraud

69001 Lyon

France

 

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*Pierre Dupont (23 April 1821, Lyon, France – 25 July 1870) was a French songwriter.

He sang his own songs, as they were composed, at the workmen's concerts in the Salle de la Fraternité du Faubourg Saint-Denis; the public performance of his famous "Le chant du pain" was forbidden; "Le chant des ouvriers" (1846) was even more popular; and in 1851 he paid the penalty of having become the poet laureate of the socialistic aspirations of the time by being condemned to seven years of exile from France.

The sentence was cancelled, and the poet withdrew for a time from participation in politics. He died in Lyon, where his later years were spent, on 25 July 1870.

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After completion, the film was rewound and processed using 350 mL of Adox Adonal (Agfa Rodinal) developer prepared at the dilution 1+25 for 9min at 20°C.

 

Digitizing was made using a Sony A7 camera (ILCE-7, 24MP) fitted to a Minolta Auto Bellows III with the Minolta slide duplication accessory and Minolta Macro Bellow lens 1:3.5 f=50mm. The diffuse light source was a LED panel CineStill Cine-lite.

 

The RAW files obtained were inverted within the latest version available of Adobe Lightroom Classic (version 14.2) and edited to the final jpeg pictures without intermediate file. They are presented either as printer files with a frame or the full size JPEG's together with some documentary smartphone color pictures.

  

About the camera :

 

This FOCA camera is in an exceptional state of conservation and looks exited from a sort of time capsule since 70 years!

 

I was not so very optimistic about the real state of this camera because of the scars description of the seller, but I finally won the bid for tiny price on September 26, 2023 and the camera arrived to me a few days later.

 

According to the serial number this PF2B should be a model-4 from year 1955 (model-4 spans the years1954-1957). The shutter is a type-3 that equipped the version 16 to 17 in 1956. Curiously, the camera has also the type-6 rewind large button only appeared in 1957 on the model-5 of PF2B's. Maybe a latter upgrade required by the customer or prosed by the after-market service?

 

The camera was kept clearly in original box with the serial number hand written on the right side. The OPLAR normal lens 1:2.8 f=5cm is a model-3 version-4 from 1955 with the "ECD/9" diaphragm graduation 2.8...3.5...9....18.

 

In the box Botton was the user manual, a Kodachrome brochure in French and several cashier ticket from the seller "PHOTO BANGARD", 29, Quai du Fossé, Mulhouse, France, also identified in the inner side of the camera back with a sticker.The cashier ticket are probably to related to the camera since the amounts in French Francs does not correspond to any price list of that time.

 

In addition the camera has a leather ever-ready bag in excellent condition. When I first detailed the camera, I soon appeared that it almost pristine with very little sign of use. All functions works flawlessly and the shutter curtains are as new. The view finder and range finder are very clear and contrasted as the day 1. The lens is also very nice with the coating in quite good condition.

 

The camera was so nice and easy to clean that I could test it with a film the day after the receipt.

  

About the FOCA PF2B camera's and the normal lens OPLAR:

 

The Foca type PF2B (PF for "Petit Format") was constructed in France by the company "Optique & Precision de Levallois" (OPL) starting from 1947. It was manufactured in the Chateaudun OPL factory, route de Jallans, France. The factory, constructed in 1938, is still at the same place under the name of SAFRAN now producing precision devices for aerospace appliances.

 

The camera is equipped with the collapsible 36mm screw-mount OPLAR lens (a modified Tessar formula with an additional fifth rear element) 1:2.8 f=5cm. The focal shutter of the PF2B has timing of 1/1000, 1/500, 1/200, 1/100, 1/50 and 1/25s plus the B pose. A slow exposure device below 1/25s could be installed by the aftermarket service and was installed basically for the FOCA PF3 type.

 

Photo taken during the community volunteering day at Holy Trinity School in Kensington and Chelsea

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Joey and his pro pose. LOL if you observe carefully(not asking you to), you'd realise I missed focus. I wanted to focus on the tip of the cue. > <

The owners of my neighbourhood soba shop in Ikenoue every night fold up the rear-view side mirror and precision park so close to the concrete brick wall like this.

En un entorno controlado y minimalista, la luz dirige la escena y el cuerpo se convierte en lienzo.

Esta imagen retrata el proceso con enfoque, calma y respeto por el oficio: técnica, concentración y dominio del espacio.

La composición en blanco y negro elimina distracciones y refuerza la atmósfera íntima del trabajo manual, donde cada línea importa y cada decisión es definitiva.

 

Una mirada honesta al proceso detrás del resultado.

Taken with Panasonic Lumix GF1 with Panasonic Lumix 14-42mm f/3.5-5.6 G Vario Aspherical MEGA OIS Lens

The stones that make up the walls at Machu Picchu are cut and stacked with such precision

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