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 "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. العربية ∙ Deutsch ∙ English ∙ español ∙ français ∙ 日本語 ∙ македонски ∙ português do Brasil ∙ русский ∙ slovenščina ∙ ไทย ∙ українська ∙ 中文（简体） ∙ 中文（繁體） ∙ +/−

This picture won the third place in the Photo challenge Sensors in May 2020.

Quality image This image has been assessed using the Quality image guidelines and is considered a Quality image. العربية ∙ جازايرية ∙ беларуская ∙ беларуская (тарашкевіца) ∙ български ∙ বাংলা ∙ català ∙ čeština ∙ Cymraeg ∙ Deutsch ∙ Schweizer Hochdeutsch ∙ Zazaki ∙ Ελληνικά ∙ English ∙ Esperanto ∙ español ∙ eesti ∙ euskara ∙ فارسی ∙ suomi ∙ français ∙ galego ∙ עברית ∙ हिन्दी ∙ hrvatski ∙ magyar ∙ հայերեն ∙ Bahasa Indonesia ∙ italiano ∙ 日本語 ∙ Jawa ∙ ქართული ∙ кыргызча ∙ 한국어 ∙ kurdî ∙ Latina ∙ Lëtzebuergesch ∙ lietuvių ∙ македонски ∙ മലയാളം ∙ मराठी ∙ Bahasa Melayu ∙ Nederlands ∙ Norfuk / Pitkern ∙ polski ∙ português ∙ português do Brasil ∙ qaraqalpaqsha ∙ rumantsch ∙ română ∙ русский ∙ sicilianu ∙ slovenčina ∙ slovenščina ∙ shqip ∙ српски / srpski ∙ svenska ∙ தமிழ் ∙ తెలుగు ∙ ไทย ∙ Tagalog ∙ toki pona ∙ Türkçe ∙ українська ∙ Oʻzbekcha ∙ vèneto ∙ Tiếng Việt ∙ 中文 ∙ 中文（简体） ∙ 中文（繁體） ∙ +/−

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

• Quality image / Subject / Objects / Household Items   >   When on that page either scroll directly to image or find by file name after clicking on Edit button.

External link (in German):

• https://www.dhmd.de/emuseum/eMuseumPlus?service=ExternalInterface&module=collection&moduleFunction=search:

  As direct links are invalidated after 30 minutes, use search (if necessary, click on menue item Suche), enter the search phrase Fieberthermometer im Etui (medical thermometer in its casing) into the area next to Objektbezeichnung, and click on Start button.

I, the copyright holder of this work, hereby publish it under the following license:

This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.

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