File:Galilei's newer telescope, part with lens, Museo Galileo, Florence, Inv. 2427, 224092.jpg
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![File:Galilei's newer telescope, part with lens, Museo Galileo, Florence, Inv. 2427, 224092.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/f/f6/Galilei%27s_newer_telescope%2C_part_with_lens%2C_Museo_Galileo%2C_Florence%2C_Inv._2427%2C_224092.jpg/800px-Galilei%27s_newer_telescope%2C_part_with_lens%2C_Museo_Galileo%2C_Florence%2C_Inv._2427%2C_224092.jpg?20220816184959)
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Galilei's newer telescope. Designer and constructor: Galileo Galilei, ca 1610. Wood, paper, copper; length 1273 mm. Museo Galileo, Florence, Inv. 2427.
Summary
[edit]DescriptionGalilei's newer telescope, part with lens, Museo Galileo, Florence, Inv. 2427, 224092.jpg |
English: Galilei's newer telescope, part with lens. Designer and constructor: Galileo Galilei, ca 1610. Wood, paper, copper; length 1273 mm. Museo Galileo, Florence, Inv. 2427.
A telescope designed and built by Galileo Galilei around 1610. Wood, paper, copper. The double-convex lens has a diameter of 51 mm, is 2.5 mm thick in the middle and has a focal length of 1330 mm. The eyepiece consists of a plano-concave lens 26 mm in diameter, 3 mm thick in the middle and has a focal length of -94 mm. The magnification is therefore 14x, and the field of view is only 15 arc minutes (a quarter of a degree). The rest is made of wood, paper and copper.
Italiano: Cannocchiale di Galilei. Ideatore, costructore: Galileo Galilei, ca 1610. Legno, carta, rame; lungheza 1273 mm. Museo Galileo, Firenze, Inv. 2427.
Čeština: Dalekohled, který Galileo Galilei navrhnul a vyrobil asi už roku 1610. Část s objektivem. Dřevo, papír, měď. Oboustranně konvexní (dvojvypuklá) čočka objektivu má průměr 51 mm, uprostřed je tlustá 2,5 mm a má ohniskovou vzdálenost 1330 mm. Okulár je tvořen plankonkávní čočkou průměru 26 mm, uprostřed je tlustá 3 mm a má ohniskovou vzdálenost -94 mm. Zvětšení je tedy 14x, ostré zorné pole je pouze 15 úhlových minut (čtvrt stupně). Ostatní je ze dřeva, papíru a mědi. |
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Source | Own work |
Author | Zde |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:49, 16 August 2022 | ![]() | 3,941 × 2,623 (9.12 MB) | Zde (talk | contribs) | Uploaded own work with UploadWizard |
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON Z 6 |
Exposure time | 1/45 sec (0.022222222222222) |
F-number | f/8 |
ISO speed rating | 3,200 |
Date and time of data generation | 15:58, 25 May 2022 |
Lens focal length | 70 mm |
Width | 3,941 px |
Height | 2,623 px |
Compression scheme | Uncompressed |
Pixel composition | RGB |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | Zoner Photo Studio X |
File change date and time | 11:29, 20 June 2022 |
Y and C positioning | Centered |
Pair of black and white reference values |
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Exposure Program | Aperture priority |
Date and time of digitizing | 15:58, 25 May 2022 |
Meaning of each component |
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APEX exposure bias | 0 |
Metering mode | Spot |
Light source | Unknown |
Flash | Flash did not fire |
DateTime subseconds | 54 |
DateTimeOriginal subseconds | 54 |
DateTimeDigitized subseconds | 54 |
Color space | Uncalibrated |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
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White balance | Auto white balance |
Focal length in 35 mm film | 70 mm |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS tag version | 0.0.3.2 |
Rating (out of 5) | 0 |