File:Mayall 4-meter primary blank (noao-04581).tiff
From Wikimedia Commons, the free media repository
Jump to navigation
Jump to search
Size of this JPG preview of this TIF file: 749 × 599 pixels. Other resolutions: 300 × 240 pixels | 600 × 480 pixels | 960 × 768 pixels | 1,280 × 1,024 pixels | 2,349 × 1,880 pixels.
Original file (2,349 × 1,880 pixels, file size: 7.39 MB, MIME type: image/tiff)
File information
Structured data
Captions
Summary
[edit]DescriptionMayall 4-meter primary blank (noao-04581).tiff |
English: Norm Cole in the center of the Mayall 4-meter primary mirror blank before polishing began at KPNO, with Harold Wirth in the background. Photograph by John Lutnes. |
Date | 30 June 2020, 21:53 (upload date) |
Source | Mayall 4-meter primary blank |
Author | John Lutnes/NOIRLab/NSF/AURA/ |
Other versions |
|
Licensing
[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.
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 08:53, 15 August 2023 | 2,349 × 1,880 (7.39 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/original/noao-04581.tif via Commons:Spacemedia |
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.
Image title | Norm Cole in the center of the Mayall 4-meter primary mirror blank before polishing began at KPNO, with Harold Wirth in the background. Photograph by John Lutnes. |
---|---|
Camera manufacturer | Canon |
Camera model | Canon EOS D60 |
Exposure time | 1/45 sec (0.022222222222222) |
F-number | f/11 |
ISO speed rating | 200 |
Date and time of data generation | 15:48, 2 June 2003 |
Lens focal length | 50 mm |
Width | 2,349 px |
Height | 1,880 px |
Bits per component |
|
Compression scheme | LZW |
Pixel composition | RGB |
Number of components | 3 |
Number of rows per strip | 1 |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop 7.0 |
File change date and time | 13:39, 3 June 2003 |
Exif version | 2.1 |
Date and time of digitizing | 15:48, 2 June 2003 |
Meaning of each component |
|
Image compression mode | 3 |
APEX shutter speed | 5.4918518066406 |
APEX aperture | 6.9188690185547 |
APEX exposure bias | −0.5 |
Maximum land aperture | 1.6959991455078 APEX (f/1.8) |
Metering mode | Average |
Flash | Flash did not fire |
Supported Flashpix version | 1 |
Color space | Uncalibrated |
Focal plane X resolution | 3,443.9461883408 |
Focal plane Y resolution | 3,442.0168067227 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |