File:Rotary graters - identical models A.S.805 (2022-05-28 focus stack).jpg

DescriptionRotary graters - identical models A.S.805 (2022-05-28 focus stack).jpg	English: Two rotary graters attached to a board. Identical models, both labeled A.S. 805. Made in Germany, 1930s or earlier. Distinct wear marks after 3 generations of continual use in our family. Composed of 16 focus stacked images. Deutsch: Zwei Nussmühlen (Trommelreiben) mit Handkurbel und zylindrischer Reibfläche an einem Brett befestigt, beide vom gleichen Bautyp A.S. 805. Hergestellt in Deutschland, ab 1930 oder noch früher. Ausgeprägte Gebrauchsspuren nach stetiger Nutzung durch 3 Generationen unserer Familie. Focus Stack aus 16 Einzelbildern.
Date	28 May 2022, 13:23:43
Source	Own work
Author	Franz van Duns
Taken with InfoField	This photo was taken with Sony FE 90mm F2.8 Macro G OSS
Taken with InfoField	This photo was taken with Sony ILCE-7RM4

Camera location	51° 28′ 40.8″ N, 7° 33′ 18″ E	View this and other nearby images on: OpenStreetMap	51.478000; 7.555000

NOTE: This image is a focus stacked image of "Rotary graters - identical models A.S.805 (2022-05-28 focus stack).jpg" consisting of 16 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. العربية ∙ Deutsch ∙ English ∙ español ∙ français ∙ 日本語 ∙ македонски ∙ português do Brasil ∙ русский ∙ slovenščina ∙ ไทย ∙ українська ∙ 中文（简体） ∙ 中文（繁體） ∙ +/−

en: Two rotary graters attached to a board.

• Identical models, both labeled A.S. 805.
• Frame made of cast metal. Wooden stopper, wooden handle. Metal grating cylinder.
• Made in Germany, 1930s or earlier.
• Distinct wear marks after 3 generations of continual use in our family.
• This focus stack is a composition of 16 individual images..
• Image taken in May 2022 in Aplerbeck, Dortmund, Germany.

See below for technical details concerning the "making of" this image.

de: Zwei Nussmühlen mit Handkurbel und zylindrischer Reibfläche an einem Brett befestigt.

• Auch Trommelreibe genannt.
• Beide vom gleichen Bautyp A.S. 805.
• Rahmen aus Metallguss. Holzstopfen, Griff aus Holz. Metallzylinder mit scharfkantigen Raspelaussparungen.
• Hergestellt in Deutschland, ab 1930 oder noch früher.
• Ausgeprägte Gebrauchsspuren nach stetiger Nutzung durch 3 Generationen unserer Familie.
• Focus Stacking-Aufnahme aus 16 Einzelbildern.
• Aufgenommen in Mai 2022 in Aplerbeck, Dortmund, Deutschland.

Technische Daten zum Bild: siehe nachfolgende Beschreibung im englischer Sprache.

• Focus stacked image.
• [1] Camera: Sony Alpha 7RIV, 61 Mpixels, sensor size 9904x6336.
• [2] Lens: Sony FE 90mm F2.8 Macro G OSS.
• [3] Scope: 16 images, magnification ratio 1:10.0 (0.1x).
• [4] Camera / lens settings: manual mode, electronic shutter, ISO 100, 1/80s, aperture 8.0, bias (=exposure compensation) 0.00, WB (white balance) 5600K, colour space 'Adobe RGB'.
• [5] FOCUS STACK recording: camera attached to sturdy tripod, rotated lens circumference by 0.33 mm between images, total focus span covered after rotating lens by 5.0 mm: approx 250 mm (from nearmost to most distant focus spot), self timer 5s, images stored both as JPG and 16-bit 'Adobe RGB' RAW (.ARW).
• [6] Adobe Lightroom: (a) Applied current 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; these are explicitly set for images with subdued colours): Exposure+1.23 Texture+50 Vibrance+10 (c) exported as TIFF/16bit, 'ProPhoto-RGB' colour profile.
• [7] FOCUS STACK processing: (a) tool 'Zerene Stacker' 1.04 (b) stacked all 16 TIFF/16bit images via 'DMap' 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 (c) mask: NO (d) Adjustment layer "colour balance": Removed tint within highlights: Cy~R-2 M~Gr+2 Y~Bl+20 (e) Adjustment layer "tone curve": 235>255 (f) enhanced sharpness:NO (g) rotated,cropped:NO (h) saved as PSD file (i) exported as JPG max. quality file with embedded 'sRGB' colour profile.
• [9] Dimensions: height of rotary grater, including wooden lid knob: approx. 225 mm.
• [10] Wiki Commons categorisation: 'Category:Grater'.

Wikipedia en: Grater

Wikipedia de: Trommelreibe

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