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 "Hatiora salicornioides bottle cactus - triple buds plus a drop of sap" consisting of 135 images that were merged using Zerene Stacker Version 1.04 Build T2020-05-22-1330 (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: Hatiora salicornioides (bottle cactus) is an epiphyte native to eastern Brazil.

• This image shows three yet unopened buds projecting from the tip of one stem and a drop of sap clinging to a spicule at the tip of another stem.
• Image taken in Aplerbeck, Dortmund, Germany, interior photo.
• Original magnification ratio (9504 pixels): 2:1 (2.0x).
• Image cropped to 6336x6336 pixels, width approx. 12 mm.
• Height of rear bud approx. 5.5 mm.
• Taken in February 2021.

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

de: Hatiora salicornioides ist ein epiphytisches Kakteengewächs aus Brasilien.

• Hier ist eine Dreifach-Knospe an der Spitze eines Stengels abgebildet, daneben ein Nektartropfen an einer Spitze am Ende eines weiteren Stengels.
• Innenaufnahme, aufgenommen in Aplerbeck, Dortmund, Deutschland.
• Ursprüngliche Vergrößerung (9504 Pixel): 2:1 (2.0x).
• Bild beschnitten auf 6336x6336 Pixel. Bildbreite ca. 12 mm.
• Länge der hinteren Knospe ca. 5,5 mm.
• Aufgenommen in Februar 2021.

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

• Focus stacked image.
• [1] Camera: Sony Alpha 7RIV, 61 Mpixels, sensor size 9504x6336.
• [2] Lens: Canon lens MP-E 65mm F2.8 Macro Photo + Metabones Canon EF to Sony FE adapter.
• [3] Scope: 135 images, magnification ratio 2:1 (2.0x).
• [4] Settings: manual mode, electronic shutter, ISO 100, 1/50s, aperture 5.6, bias (=exposure compensation) 0.00, WB (white balance) 5600K.
• [5] FOCUS STACK recording: camera attached to focusing rack / automatic stepper Novoflex Castel-Micro, step set to 0.12000 mm, resulting step 0.1197 mm, total distance covered 16.04 mm (from nearmost focus to the most distant focus spot), delay between images 5 sec., duration 11 min., images stored both as JPG and 16-bit RAW (.ARW).
• [6] FOCUS STACK processing: (a) tool 'Zerene Stacker' 1.04 (b) stacked all 135 JPG images via 'PMax' method (c) exported as one TIFF/16bit image.
• [7] Adobe Lightroom: not required.
• [8] Adobe Photoshop: (a) imported one TIFF/16bit (b) enhanced contrast via tone curve (c) removed 'worm tracks' caused by sensor specks (d) enhanced sharpness of 'areas of detail' (e) cropped centre area to 6336x6336 pixels (f) exported as JPG max. quality file with embedded colour profile.
• [9] Dimensions: Width of cropped image 12 mm, height of rear bud approx. 5.5 mm.
• [10] NOTE: The sliver of golden glow above the top and rightmost buds is an inevitable artifact of focus stack processing that becomes exceedingly visible when, as here, enlargement ratios are higher than 1:1 and stack sizes exceed 20-40 images.

• Wikipedia en: Hatiora salicornioides
• Wikipedia de: Hatiora salicornioides

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