File:Solargraph from Sashegy - Budapest, 2014.01.01 - 2014.12.31 (2).jpg
![File:Solargraph from Sashegy - Budapest, 2014.01.01 - 2014.12.31 (2).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/f/f6/Solargraph_from_Sashegy_-_Budapest%2C_2014.01.01_-_2014.12.31_%282%29.jpg/541px-Solargraph_from_Sashegy_-_Budapest%2C_2014.01.01_-_2014.12.31_%282%29.jpg?20151026171321)
Size of this preview: 541 × 599 pixels. Other resolutions: 217 × 240 pixels | 434 × 480 pixels | 925 × 1,024 pixels.
Original file (925 × 1,024 pixels, file size: 137 KB, MIME type: image/jpeg)
File information
Structured data
Captions
Captions
Add a one-line explanation of what this file represents
Summary
editDescriptionSolargraph from Sashegy - Budapest, 2014.01.01 - 2014.12.31 (2).jpg |
English: 1 year exposure taken on the whole year of 2014. The Sun leave trails in her apparent motion from East to West. From the third elevation on Sashegy, Buda, Budapest, Hungary. Facing Hermánd utca. Description: 227_nagy_nyers_vagott-tukrozott(1) . This image, made using a technique known as "solargraphy" in which a pinhole camera captures the movement of the Sun in the sky over many months, was taken from the third elevation of Sashegy, on the plateau. The solar trails in the image were recorded over a year and clearly show the third top of the 256-metre altitude site. The idea for creating the solargraphs at Sashegy came from Bob Fosbury, an astronomer based at ESO Headquarters in Germany. The cans are constructed from small black plastic canisters used for storing 35 mm film cassettes. A pinhole in a sheet of aluminium foil is placed over a small aperture drilled into the side of the can, and a rectangle of black and white photographic printing paper is curled and placed snugly around the inside of the can. Two cans were mounted facing south on the rooftop of an ordinery house. The cans at Sashegy were exposed for a full 12 months from 1st of January, 2014 until 31st of December, 2014. The colours appearing in this pinhole camera picture are not related to the actual colours of the scene. The colour comes from the appearance of finely divided metallic silver growing on silver halide grains. With solargraphic images, the photographic paper is not developed but simply scanned with a normal colour scanner after exposure and then "inverted" — switched from negative to positive — in the computer. This reveals the latent image, which in a normal photograph consists of around ten silver atoms per billion atoms of silver halide grain and is usually invisible. On continued exposure however, the latent image clumps grow so that the first visible signs of an image are yellowish, which then darkens to sepia and finally to a maroonish-brown hue as the particle size increases. Eventually the maximum exposure produces a slate-grey shade. Sources: https://en.wikipedia.org/wiki/Long-exposure_photography#/media/File:Solargraph_APEX.tif
http://www.alternativephotography.com/wp/processes/pinholes/solargraphy-catching-the-suns-path-pinhole-camera |
Date | 2014.01.01 - 2014.12.31 |
Source | Own work |
Author | Elekes Andor |
Licensing
editI, the copyright holder of this work, hereby publish it under the following license:
![w:en:Creative Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/CC_some_rights_reserved.svg/90px-CC_some_rights_reserved.svg.png)
![attribution](https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Cc-by_new_white.svg/24px-Cc-by_new_white.svg.png)
![share alike](https://upload.wikimedia.org/wikipedia/commons/thumb/d/df/Cc-sa_white.svg/24px-Cc-sa_white.svg.png)
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 17:13, 26 October 2015 | ![]() | 925 × 1,024 (137 KB) | Elekes Andor (talk | contribs) | User created page with UploadWizard |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Unique ID of original document | xmp.did:630A3CCF0C5FE511A8C2C8ABFC3998CD |
---|---|
Software used | Adobe Photoshop CS6 Windows |