摘要

相机位置	51° 28′ 40.8″ 北, 7° 33′ 18″ 东	在以下服务上查看本图像和附近其他图像： OpenStreetMap	51.478000; 7.555000

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注意：这是一张由 8 张图片组成的"Sony Alpha 7R IV rear view from elevated position, display extended.jpg"景深合成图片。此图片使用 Zerene Stacker Version 1.04 Build T2021-02-16-2045 (licensed) 合成。这张照片可能经过了混合、模糊、克隆、调色和透视修正等数字处理，因此，此图像被合并的部分可能与现实有所不同。由于镜头、透视图和视差失真，通常需要进行此操作。 العربية ∙ Deutsch ∙ English ∙ español ∙ français ∙ 日本語 ∙ македонски ∙ português do Brasil ∙ русский ∙ slovenščina ∙ ไทย ∙ українська ∙ 中文（简体） ∙ 中文（繁體） ∙ +/−

Additional Information

en: The Sony Alpha 7R IV is a mirrorless interchangeable lens camera.

• Internal designation: Sony Alpha ILCE-7RM4.
• This image shows a rear view of the camera body from an elevated position.
• The LC display is in almost fully extended.position.
• This focus stack is a composition of 8 individual images
• Image taken in February 2021 in Aplerbeck, Dortmund, Germany.
• Body shows wear and smudge marks due to continual use since purchase in October 2019 with over 7,500 images taken, many as focus stacking series.

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

de: Die Sony Alpha 7R IV ist eine spiegellose Wechselobjektiv-Kamera.

• Interne Bezeichnung: Sony Alpha ILCE-7RM4.
• Dieses Bild zeigt die Rückansicht des Kameragehäuses aus einer erhöhten Position.
• Das LC-Display is nahezu maximal ausgeklappt.
• Diese Focus Stacking-Aufnahme ist aus 8 Einzelbilder zusammen gesetzt.
• Aufgenommen in Februar 2021 in Aplerbeck, Dortmund, Deutschland.
• Das Gehäuse zeigt leichte Gebrauchs- und Schmutzspuren, da in Dauergebrauch seit Kauf in Oktober 2019, mit inzwischen über 7.500 Aufnahmen, zumeist als Fokus Stacking Serien.

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

Technical Details / Making of this Image

• Focus stacked image.
• [1] Camera: Sony Alpha 7RIII, 42 Mpixels, sensor size 7952x5304.
• [2] Lens: Sony FE 90mm F2.8 Macro G OSS.
• [3] Scope: 8 images, magnification ratio 1:5 (0.2x).
• [4] Settings: manual mode, electronic shutter, ISO 100, 1/25s, aperture 9.0, bias (=exposure compensation) -1.00, WB (white balance) 5600K.
• [5] FOCUS STACK recording: camera attached to focusing rack, rotated lens circumference by 0.5 mm between images, total focus span covered after rotating lens by 3.5 mm: approx 90 mm (from nearmost focus to the most distant focus spot), self timer 5s, images stored both as JPG and 16-bit RAW (.ARW).
• [6] Adobe Lightroom: (a) Preset 004 (Presence+Sharp+NoiseRed) (b) removed tint via dropper (c) exposure +0.91 (d) exported as TIFF/16bit.
• [7] FOCUS STACK processing: (a) tool 'Zerene Stacker' 1.04 (b) stacked all 8 JPG images via 'DMap' method (c) used built-in retouching to reconstruct details near some edges directly from original image (d) exported as one TIFF/16bit image.
• [8] Adobe Photoshop: (a) imported the stacked TIFF/16bit (b) masked camera outlines (c1) enhanced contrast of camera via masked tone curve adjustment layer (c2) reduced background to pure white via tone curve adjustment layer with inverted mask (d) removed larger dust specks and strands of hair (e) enhanced sharpness: not necessary (f) cropped: not necessary (g) exported as JPG max. quality file with embedded colour profile.
• [9] Dimensions: Width of image approx. 180 mm, width of camera: approx. 138 mm.

Links

• Wikimedia Commons: Collection of cameras and lenses on white background starting at file name "Sony"
• Wikipedia en: Sony α7R IV
• Wikipedia zh: 索尼 (Sony) α7R IV
• Wikipedia de: Sony Alpha 7R IV

Quality Image categorization

• Quality image / Subject / Objects / Cameras, Optics and Microscopes   >   When on that page either scroll directly to image or find by file name after clicking on Edit button.

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