File:Focal Plane Testing (ann20006a).tiff
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[edit]DescriptionFocal Plane Testing (ann20006a).tiff |
English: Parker Fagrelius, a DESI Collaboration member and NOIRLab scientist, tests the wedge-shaped petals for DESI’s focal plane in a clean room at Lawrence Berkeley National Laboratory in April 2019. Ten petals, each containing 500 robotic positioners that are used to gather light from targeted galaxies, form the complete focal plane. The focal plane is now installed on the Nicholas U. Mayall Telescope at Kitt Peak National Observatory, a Program of NSF’s NOIRLab, near Tucson, Arizona. |
Date | 1 June 2020 (upload date) |
Source | Focal Plane Testing |
Author | Marilyn Sargent/Lawrence Berkeley National Laboratory |
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[edit]This media was created by the National Optical-Infrared Astronomy Research Laboratory (NOIRLab).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public NOIRLab website, along with the texts of press releases, announcements, images of the week and captions; are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. | |
This file is licensed under the Creative Commons Attribution 4.0 International license.
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current | 20:48, 17 September 2023 | 5,100 × 3,400 (30.91 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/original/ann20006a.tif via Commons:Spacemedia |
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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.
Camera manufacturer | Canon |
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Camera model | Canon EOS 5D Mark IV |
Author | Marilyn Chung |
Exposure time | 1/1,250 sec (0.0008) |
F-number | f/2.8 |
ISO speed rating | 2,000 |
Date and time of data generation | 09:21, 1 April 2019 |
Lens focal length | 50 mm |
Width | 5,100 px |
Height | 3,400 px |
Bits per component |
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Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 17 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop 21.1 (Windows) |
File change date and time | 17:04, 1 June 2020 |
Exposure Program | Manual |
Exif version | 2.31 |
Date and time of digitizing | 09:21, 1 April 2019 |
APEX shutter speed | 10.287712 |
APEX aperture | 2.970854 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 2 |
Color space | Uncalibrated |
Focal plane X resolution | 1,866.6666564941 |
Focal plane Y resolution | 1,866.6666564941 |
Focal plane resolution unit | 3 |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Scene capture type | Standard |