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File:Medical mercury thermometer with velvet-lined cardboard box - focus stack (2020-05-25).jpg

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Original file(9,543 × 6,394 pixels, file size: 18.7 MB, MIME type: image/jpeg)

Captions

Captions

Medical mercury thermometer in front of its velvet-lined protective cardboard box.

Summary[edit]

Description
English: Medical mercury thermometer and corresponding velvet-lined protective cardboard box. Manufactured in Germany before 1920. Hand-painted numerals to be read when held in vertical position. Length of glass tube: 126 mm.
Deutsch: Medizinisches Quecksilberthermometer und zugehörige Kartonschachtel mit Samteinlage. Hergestellt in Deutschland vor 1920. Handgemalte Ziffern, Ablesung in senkrechter Position. Länge des Glaskolbens: 126 mm.
Français : Thermomètre médical à mercure avec sa boite ; fabriqué en Allemagne avant 1920 ; les chiffres sont peints à la main de façon à pouvoir être lus lorsque le thermomètre est en position verticale.
Date
Source Own work
Author Franz van Duns
Camera location51° 28′ 40.8″ N, 7° 33′ 18″ E Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo
NOTE: This image is a focus stacked image of "Medical mercury thermometer with velvet-lined cardboard box - focus stack (2020-05-25).jpg" consisting of 9 images that were merged using Zerene Stacker Version 1.04 Build T2019-10-07-1410 (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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en: Medical mercury thermometer.

  • Glas tube.
  • Original velvet-lined cardboard box with clip.
  • Manufactured in Germany before 1920 by "C. & Cie D.".
  • The numerals are obviously hand-painted.
    They are arranged to be read when held in vertical position.
    This differs from the horizontal arrangement of numerals as displayed in the external link depicting an almost identical model together with its protective casing (see below).
    Both hand-painting and vertical arrangement of numerals indicate an even earlier production date, maybe 1900-1915.
    Note: according to numerous images mercury medical thermometers later displayed numerals that were preferredly arranged for horizontal viewing.
  • Length of glass tube: 126 mm.
  • Image taken in May 2020.

Technical details describing the making of of this image:

  • Lens: Sony FE 90mm F2.8 Macro G OSS.
  • ISO 1600, shutter speed 1/4s, aperture 11, bias(=expos.comp.) 0.00, 16-bit RAW (.ARW), WB (white balance) 5200K.
  • FOCUS STACK / imaging: tripod; self-timer: 10 sec.; 9 images; rotated focus ring from near to far by 0.5 mm increment after every exposure (0,5 mm experimentally verified as best compromise of image overlap for this lens at aperture=11).
  • Lightroom / .ARW: (a) Preset 003 (Presence+Sharp+NoiseRed) (b) expos.+1.14 (c) small adjustments to presets (d) exported as TIFF/16bit.
  • FOCUS STACK / Zerene Stacker 1.04: stacked 9 TIFF/16bit images, (b) exported as TIFF/16bit.
  • Photoshop / TIFF/16bit: (a) rotated by 0.35 degrees (b) removed remaining dust and sensor specks (c) exported as JPG/max. quality file with embedded colour profile.


de: Medizinisches Quecksilberthermometer.

  • Glasgehäuse.
  • Original-Kartonschachtel mit Samteinlage und Federklemme.
  • Hergestellt in Deutschland vor 1920 von der Firma "C. & Cie D.".
  • Die Kombination aus eindeutig handgemalten Ziffern sowie die Ablesung in senkrechter Position zeigen auf ein deutlich früheres Herstellungsdatum, möglicherweise 1900-1915.
  • Länge des Glaskolbens: 126 mm.
  • Aufgenommen in Mai 2020.

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


Links:
  en: Medical mercury-in-glass thermometer
  de: (Medizinische) Quecksilberthermometer
  fr: Thermomètre à mercure

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Date/TimeThumbnailDimensionsUserComment
current16:17, 31 May 2020Thumbnail for version as of 16:17, 31 May 20209,543 × 6,394 (18.7 MB)Franz van Duns (talk | contribs)Uploaded own work with UploadWizard

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