File:Curled soot flakes deposited on glass pane of wood burner - DSG9046.jpg
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[edit]DescriptionCurled soot flakes deposited on glass pane of wood burner - DSG9046.jpg |
English: Curled and cracked flakes of soot adhering to the glass pane of a wood burner. These flakes were produced by a incidental hot flame causing a small section of a previously deposited smooth layer of soot to break up and wrinkle. The image was backlit by an LED panel.
Deutsch: Gekrümmte und zerbrochene Rußflocken an der Glasscheibe eines Holzofens. Diese Flocken entstehen, wenn eine heiße Flamme auf eine zuvor abgelagerte glatte Rußschicht gerichtet wird, so dass diese zerbricht und sich aufkrümmt. Die Szene wurde von einer größeren LED-Flächenleuchte hinterleuchtet. |
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 Sony FE 90mm F2.8 Macro G OSS |
Camera location | 51° 28′ 48″ N, 7° 33′ 00″ E ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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![]() | This picture won the 17 place in the Photo challenge Abstract photography in September 2022. |
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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: Curled and cracked flakes of soot adhering to the glass pane of a wood burner.
- These flakes were produced by a spontaneous hot flame emanating from one end of a chunk of log faced towards the front pane. This caused a small section of a previously deposited smooth layer of soot to break up and wrinkle.
- The curved nature of the depicted soot flakes reminds one remotely of certain Chinese artwork, especially clouds and/or frothing waves. At lower left one can surmise the outlines of two flowers, reminescent of roses.
- In addition to the main soot-black shading various hues of nearly white to intense yellow are highly conspicuous in the areas where the soot layer has been peeled back. When viewed at full resolution small specks of brownish and even slightly red hues appear, mostly around specks of soot. I take an educated guess that all these colours are caused by secondary layers of hot vapours or soot, deposited on the glas pane after the cracks had opened, now extremely thin and thus translucent.
- By the way, the glass pane took no harm. As recommended by the manufacturer, some rubbing with wettened wood ash and applying a little elbow-grease removed all this grime completely.
- The magnification ratio of this crop as compared to a full frame sensor is approx. 1:2.5, i.e. 0.4x.
The image frame thus depicts an area of approx. 60mm x 60 mm. The multi-petaled "rose bloom" at lower left was in reality just 5.5 mm wide and barely visible. - Image series taken in Aplerbeck, Dortmund, Germany in September 2022.
Technical Details / Making of this Image
[edit]- Single image.
- [1] Camera: ILCE-7RM4: Sony Alpha 7RIV, 61 Mpixels, sensor size 9504x6336
- [2] Lens: Sony FE 90mm F2.8 Macro G OSS.
- [3] Setup/illumination: Scene backlit by an well-diffused LED panel at reduced intensity.
Bias (=exposure compensation) set to -3.0 to reduce the glare from behind and thus preserve the black edges of the cracked soot layers. - [4] Scope: 1 image out of a series of 5. Initial magnification factor based on full sensor size before crop: 1:1:4.5 (0.22x). Final dimensions / magnification: see section [10].
- [5] Camera / lens settings: aperture mode, electronic shutter, ISO 100, 1/125s, aperture 10.0, bias (=exposure compensation) -3.0, WB (white balance) 5600K, BrightnessValue 6.06, colour space 'Adobe RGB'.
- [6] ---
- [7] Adobe Lightroom: imported 'Adobe RGB' RAW (.ARW) file (a) Applied standard preset 004 (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:UNALTERED Texture+50 Vibrance+10 (c) tone curve:UNALTERED (d) exported as TIFF/16bit, 'ProPhoto-RGB' colour profile.
- [8] ---
- [9] Adobe Photoshop: (a) imported 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:NO (e) enhanced sharpness:NO (f) rotated:NO (g) cropped:5100x5100 (h) saved as PSD file (i) exported as JPG max. quality file (previously: 12 of 12) with embedded 'sRGB' colour profile.
- [10] Final dimensions: width of final image: approx. 60 mm, i.e. magnification factor based on full frame approx. 0.4x.
- [11] ExifTool: added user-related tags and reimported technical tags that hat been discarded during Photoshop EXPORT-AS-JPG processing from both original .ARW and intermediate .TIF files.
- [12] Wiki Commons categorisation: 'Category:Soot' and 'Category:Close-up photographs of textures'.
Wiki Links
[edit]Wikipedia en: Soot, Texture_(visual_arts)#Physical_texture
Wikipedia de: Ruß
Licensing
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- 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
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 10:33, 1 October 2022 | ![]() | 5,100 × 5,100 (4.32 MB) | Franz van Duns (talk | contribs) | Uploaded own work with UploadWizard |
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File usage on Commons
The following 7 pages use this file:
- User:Franz van Duns
- User talk:Franz van Duns
- Commons:Photo challenge/2022 - September - Abstract photography
- Commons:Photo challenge/2022 - September - Abstract photography/Voting
- Commons:Photo challenge/2022 - September - Abstract photography/Voting/Result
- Commons:Quality images/Subject/Objects/Other/Archive 2023
- Commons:Quality images candidates/Archives September 04 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 | Curled flakes of cracked soot layer deposited on glass pane of wood burner - DSG9046 |
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Camera manufacturer | SONY |
Camera model | ILCE-7RM4 |
Author | Franz van Duns |
Copyright holder |
|
Exposure time | 1/125 sec (0.008) |
F-number | f/10 |
ISO speed rating | 100 |
Lens focal length | 90 mm |
Date and time of data generation | 09:05, 29 September 2022 |
Short title |
|
JPEG file comment | Prepared for release to Wiki Commons with the help of 'ExifTool.exe'. Many thanks. |
Software used | Adobe Lightroom Classic 11.4.1 (Win) / Adobe Photoshop 23.4.1 (Win) |
Exif version | 2.32 |
Meaning of each component |
|
APEX shutter speed | 6.9657842861166 |
APEX aperture | 6.6438561438561 |
APEX brightness | 6.06 |
APEX exposure bias | −3 |
Metering mode | Pattern |
Supported Flashpix version | 1 |
Color space | Uncalibrated |
File source | Digital still camera |
Exposure mode | Auto exposure |
Focal length in 35 mm film | 90 mm |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Keywords | soot, flakes, glass pane, wood burner, deposited, backlit |
IIM version | 4 |
Lens used | Sony FE 90mm F2.8 Macro G OSS |
Structured data
some value
29 September 2022
51°28'48"N, 7°33'0"E
0.008 second
10
90 millimetre
100
image/jpeg
ab0b8bf323b7b5203d85baebd7f067b5e3153de9
4,531,663 byte
5,100 pixel
5,100 pixel
- Taken with Sony ILCE-7RM4
- Taken with Sony FE 90mm F2.8 Macro G OSS
- Photo challenge winners
- Quality images
- CC-BY-SA-4.0
- Self-published work
- Exposure time 1/125 sec
- F-number f/10
- ISO speed rating 100
- AdobeRGB photographs
- North Rhine-Westphalia photographs taken on 2022-09-29
- Images by Franz van Duns
- Quality images by Franz van Duns
- Quality images of photo art