File:Estrazione dell'Allume, galleria mineraria.jpg
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DescriptionEstrazione dell'Allume, galleria mineraria.jpg |
Italiano: Museo Klitsche De La Grange ad Allumiere. Riproduzione di una galleria di una miniera di estrazione di Alunite nei Monti della Tolfa. Dall'Alunite si ricava l'Allume. La coltivazione delle miniere di Alunite, nella zona di Allumiere nei monti della Tolfa, è avvenuta principalmente a cielo aperto, la coltivazione in galleria fu introdotta solo negli ultimi anni dell’attività English: Reproduction of an Alunite extraction mine tunnel, in the Allumiere area of the Tolfa Mountains. Klitsche De La Grange Museum (Allumiere, Lazio) |
Date | |
Source | Own work |
Author | Albarubescens |
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This file was uploaded as part of Wiki Science Competition 2023. |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 21:50, 6 December 2023 | 4,528 × 3,346 (3.03 MB) | Albarubescens (talk | contribs) | Uploaded own work with UploadWizard |
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Camera manufacturer | NIKON CORPORATION |
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Camera model | COOLPIX W300 |
Exposure time | 1/25 sec (0.04) |
F-number | f/2.8 |
ISO speed rating | 400 |
Date and time of data generation | 12:23, 16 July 2023 |
Lens focal length | 4.3 mm |
Exposure Program | Normal program |
Exif version | 2.31 |
Date and time of digitizing | 12:23, 16 July 2023 |
APEX shutter speed | 4.643856 |
APEX aperture | 2.970854 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 24 mm |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |