File:Detail of white dove feather - rhachis with gap between barbs - DSG2101-1 - 2021-04-04 (magnification ratio 3x - HiRes).jpg
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Summary[edit]
DescriptionDetail of white dove feather - rhachis with gap between barbs - DSG2101-1 - 2021-04-04 (magnification ratio 3x - HiRes).jpg |
English: Macro image of the midsection of a white dove feather. The vertical rhachis (shaft) is the base from which parallel barbs protrude. Two disconnected barbs form a gap, thus displaying two kinds of barbules that hook up to form a perfect vane. The magnification ratio as compared to a full frame sensor is approx.1:3.0, i.e. 3x; the width of the image being approx. 12 mm. A series of images was processed as a HiRes focus stack that resolves both barbs and barbules across the image.
Deutsch: Makroaufnahme: mittiger Detailausschnitt einer weißen Taubenfeder. Der vertikale Federschaft (Rhachis) bildet die Basis für die dicht gereihten Federäste. Die Lücke zwischen den Federästen ermöglicht die getrennte Ansicht der Bogen- und Hakenstrahlen. Vergößerungsfaktor im Vergleich zum Kleinbild-Sensor: ca. 1:3,0, also 3-fach.Die Bildbreite deckt mithin etwa 12mm ab. Die initiale Bilderserie wurde per Fokus Stacking zu einem äußerst detailreichen Bild zusammen gesetzt, in dem jeder einzelne von den Schäften abgehende Strahl (Bogenstrahl und Hakenstrahl) im Detail sichtbar ist. |
Date | |
Source | Own work |
Author | Franz van Duns |
Taken with InfoField | This photo was taken with Sony ILCE-7RM4 |
Taken with InfoField | This photo was taken with Canon MP-E 65mm F2.8 1-5x Macro |
Camera location | 51° 28′ 48″ N, 7° 33′ 00″ E | View this and other nearby images on: OpenStreetMap | 51.480000; 7.550000 |
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This picture won the 22 place in the Photo challenge Macro photography in May 2023. |
NOTE: This image is a focus stacked image of "Macro image of the midsection of a white dove feather" consisting of 73 images that were merged using Zerene Stacker Version 1.04 Build T2022-04-21-0715 (licensed). As a result, this image underwent digital manipulation which may have included blending, blurring, cloning, and colour and perspective adjustments. As a result of these adjustments, the image content may be slightly different than reality at the points where the images were combined. This manipulation is often required due to lens, perspective, and parallax distortions.
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This image has been assessed using the Quality image guidelines and is considered a Quality image.
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Additional Information[edit]
en: Macro image of the midsection of a white dove feather.
- The vertical rhachis (shaft) is the base from which parallel barbs protrude.
- Two disconnected barbs form a gap, thus displaying two kinds of barbules that hook up (as all others in this close-up) to form a perfect vane.
- The magnification ratio as compared to a full frame sensor is approx. 3.0:1, i.e. 3x; the width of the image being approx. 12 mm.
- Focus stack derived from 73 images, the lens being attached to a "Novoflex Castel-Micro" focusing rack and automatic stepper, advancing 0.03 mm between images.
- Very high resolution: barbules all across the image are resolved in fine detail.
- Feather components: refer to Illustration: components of a feather
- Image series taken in Aplerbeck, Dortmund, Germany in April 2021.
- See below for technical details concerning the "making of" this image.
de: Makroaufnahme: mittiger Detailausschnitt einer weißen Taubenfeder.
- Der vertikale Federschaft (Rhachis) bildet die Basis für die dicht gereihten Federäste.
- Die Lücke zwischen den Federästen ermöglicht die getrennte Ansicht der Bogen- und Hakenstrahlen.
- Vergößerungsfaktor im Vergleich zum Kleinbild-Sensor: ca. 3,0:1, also 3-fach. Die Bildbreite deckt mithin etwa 12mm ab.
- Focus Stacking-Aufnahme aus 73 Einzelbildern.
- Sehr hohe Auflösung: die von den parallelen Federästen abgehenden Strahlen (Bogenstrahl und Hakenstrahl) sind im Detail sichtbar.
- Bestandteile einer Flugfeder: siehe Darstellung der Einzelbestandteile einer Feder
- Aufgenommen in April 2021 in Aplerbeck, Dortmund, Deutschland.
- Technische Daten zum Bild: siehe nachfolgende Beschreibung im englischer Sprache.
Technical Details / Making of this Image[edit]
- Focus stacked image.
- [1] Camera: Sony ILCE-7RM4, 61 Mpixels, sensor size 9504x6336.
- [2] Lens: Canon MP-E 65mm f/2.8 1–5x Macro + Metabones Canon EF to Sony FE adapter.
- [3] Scope: 73 images, magnification ratio 3.0:1 (1.0x).
- [4] Camera / lens settings: manual mode, electronic shutter, ISO 100, 1/20s, aperture 3.2, bias (=exposure compensation) 0.00, WB (white balance) 5600K, colour space 'Adobe RGB'.
- [5] FOCUS STACK recording: camera attached to focusing rack / automatic stepper Novoflex Castel-Micro, step set to 0.0300 mm, resulting step 0.0297 mm, total distance covered 2.13 mm (from nearmost focus to the most distant focus spot), delay between images 6 sec., duration 10 min., stored 73 images, both as JPG and 16-bit 'Adobe RGB' RAW (.ARW) files.
- [6] Adobe Lightroom: imported all 73 16-bit 'Adobe RGB' RAW (.ARW) files (a) Applied current standard preset 005 (WB, tint:unaltered, Exposure+0.91, Presence: Texture+30 Clarity+30 Vibrance+5 Saturation+3, Sharp: Amount+70, Radius:1.0 Detail:25 Masking:20, NoiseRed: Lum:50 Detail:50 Contrast:0 Color:30 Detail:50, Smooth:50, LensCorr:all) (b) Subsequent changes (final values stated): Exposure:0.0 Contrast-40 (c) exported as TIFF/16bit, 'ProPhoto-RGB' colour profile.
- [7] FOCUS STACK processing: (a) tool 'Zerene Stacker' 1.04 (b) stacked all 73 TIFF images via 'PMax' method (c) Stacking artefacts:NO, i.e. no focus-based retouching required at this stage (d) exported as one TIFF/16bit 'ProPhoto-RGB' image.
- [8] Adobe Photoshop: (a) imported stacked TIFF/16bit image, explicitly preserving embedded colour space 'ProPhoto-RGB' (b) removed sensor specks and visible specks of dust and strands (c) mask: NO (d) tone curve: 50>44, 140>189, 192>255 (e) enhanced sharpness:NO (f) rotated: NO (g) cropped: NO (h) saved as PSD file (i) exported as JPG max. quality file (6 of 7) with embedded 'sRGB' colour profile.
- [9] Dimensions: width of image: approx. 12 mm.
- [10] ExifTool: added user-related tags and reimported technical tags from both original .ARW and intermediate .TIF files that hat been discarded during Photoshop EXPORT-AS-JPG processing.
- [11] Wiki Commons categorisation: 'Category:Feather barbs'.
Links[edit]
- Wikipedia en: Flight feather
- Wikipedia de: Feder#Konturfedern, siehe dort Zeichnung rechts: Schematischer Bau der Konturfeder
- Wiki Commons: Illustration: components of a feather
Licensing[edit]
- 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.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:38, 19 May 2023 | 9,504 × 6,336 (19.59 MB) | Franz van Duns (talk | contribs) | Uploaded own work with UploadWizard |
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File usage on Commons
The following 55 pages use this file:
- User:Franz van Duns
- User talk:Franz van Duns
- Commons:Photo challenge/2023 - May - Macro photography
- Commons:Photo challenge/2023 - May - Macro photography/Voting
- Commons:Photo challenge/2023 - May - Macro photography/Voting/Result
- Commons:Quality images
- Commons:Quality images/Subject/Microscopic
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- Commons:Quality images candidates/Archives September 03 2023
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 |
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Camera manufacturer | SONY |
Camera model | ILCE-7RM4 |
Author | Franz Goschi |
Copyright holder |
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Exposure time | 1/20 sec (0.05) |
F-number | f/3.2 |
ISO speed rating | 100 |
Date and time of data generation | 12:51, 4 April 2021 |
Lens focal length | 65 mm |
User comments | Focus stacked image. [1] Camera: Sony Alpha 7RIV, 61 Mpixels, sensor size 9504x6336. [2] Canon MP-E 65mm f/2.8 1-5x Macro Photo + Metabones Canon EF to Sony FE adapter. [3] Scope: 73 images, magnification ratio 1:3.0 (1.0x). [4] Camera / lens settings: manual mode, electronic shutter, ISO 100, 1/20s, aperture 3.2, bias (=exposure compensation) 0.00, WB (white balance) 5600K, colour space 'Adobe RGB'. [5] FOCUS STACK recording: camera attached to focusing rack / automatic stepper Novoflex Castel-Micro, step set to 0.0300 mm, resulting step 0.0297 mm, total distance covered 2.13 mm (from nearmost focus to the most distant focus spot), delay between images 6 sec., duration 10 min., stored 73 images, both as JPG and 16-bit 'Adobe RGB' RAW (.ARW) files. [6] Adobe Lightroom: imported all 73 16-bit 'Adobe RGB' RAW (.ARW) files (a) Applied current standard preset 005 (WB, tint:unaltered, Exposure+0.91, Presence: Texture+30 Clarity+30 Vibrance+5 Saturation+3, Sharp: Amount+70, Radius:1.0 Detail:25 Masking:20, NoiseRed: Lum:50 Detail:50 Contrast:0 Color:30 Detail:50, Smooth:50, LensCorr:all) (b) Subsequent changes (final values stated): Exposure:0.0 Contrast-40 (c) exported as TIFF/16bit, 'ProPhoto-RGB' colour profile. [7] FOCUS STACK processing: (a) tool 'Zerene Stacker' 1.04 (b) stacked all 73 TIFF images via 'PMax' method (c) Stacking artefacts:NO, i.e. no focus-based retouching required at this stage (d) exported as one TIFF/16bit 'ProPhoto-RGB' image. [8] Adobe Photoshop: (a) imported stacked TIFF/16bit image, explicitly preserving embedded colour space 'ProPhoto-RGB' (b) removed sensor specks and visible specks of dust and strands (c) mask: NO (d) tone curve: 50>44, 140>189, 192>255 (e) enhanced sharpness:NO (f) rotated: NO (g) cropped: NO (h) saved as PSD file (i) exported as JPG max. quality file (6 of 7) with embedded 'sRGB' colour profile. [9] Dimensions: width of image: approx. 12 mm. [10] ExifTool: added user-related tags and reimported technical tags from both original .ARW and intermediate .TIF files that hat been discarded during Photoshop EXPORT-AS-JPG processing. [11] Wiki Commons categorisation: 'Category:Feather barbs'. |
Short title |
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JPEG file comment | Prepared for release to Wiki Commons with the help of 'ExifTool.exe'. Many thanks. |
Width | 9,504 px |
Height | 6,336 px |
Orientation | Normal |
Horizontal resolution | 350 dpi |
Vertical resolution | 350 dpi |
Software used | Adobe Lightroom Classic 12.3 (Win) / Adobe Photoshop 24.4 (Win) / Zerene Stacker Version Version 1.04 Build T2022-04-21-0715 (licensed) |
File change date and time | 12:51, 4 April 2021 |
White point chromaticity |
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Chromaticities of primarities |
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Exposure Program | Manual |
Exif version | 2.31 |
Date and time of digitizing | 12:51, 4 April 2021 |
Meaning of each component |
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APEX shutter speed | 4.3219280719281 |
APEX aperture | 3.3561438092556 |
APEX brightness | 2.478125 |
APEX exposure bias | 0 |
Maximum land aperture | 2.9708536585366 APEX (f/2.8) |
Metering mode | Pattern |
Light source | Unknown |
Supported Flashpix version | 1 |
Color space | Uncalibrated |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 65 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Keywords | feather, barbs, bird, dove, white, gap, disconnected, macro |
IIM version | 4 |
Lens used | Canon MP-E 65mm f/2.8 1-5x Macro Photo + Canon EF Adapter |
Image compression mode | 2 |
Flash | Flash did not fire, compulsory flash suppression |
Bits per component | 14 |
Compression scheme | Uncompressed |
Number of components | 1 |
Color space transformation matrix coefficients |
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Y and C positioning | Co-sited |
Rating (out of 5) | 0 |
Structured data
4 April 2021
51°28'48"N, 7°33'0"E
0.05 second
3.2
65 millimetre
100
image/jpeg
- Taken with Sony ILCE-7RM4
- Taken with Canon MP-E 65mm F2.8 1-5x Macro
- Photo challenge winners
- Quality images
- CC-BY-SA-4.0
- Self-published work
- Exposure time 1/20 sec
- F-number f/3.2
- ISO speed rating 100
- Photographs with aspect ratio of 3:2
- AdobeRGB photographs
- Created with Zerene Stacker
- North Rhine-Westphalia photographs taken on 2021-04-04
- Images by Franz van Duns
- Focus stacking images by User:Franz van Duns
- Quality images by Franz van Duns
- Pages with maps