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File:Photoelasticity - TDK Head Cleaner - White background.jpg

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Original file ‎(5,542 × 3,690 pixels, file size: 7.51 MB, MIME type: image/jpeg)

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English: TDK tape head cleaner cassette "HCL-11" made of clear hard plastic. The plastic is birefringent and demonstrates internal stress as coloured patterns (photoelasticity) when photographed using cross polarisation. The polarising light source (an LCD monitor) has been rotated such that the polarising filter on the lens is similarly oriented and so lets through all the direct light, producing a white background.
Date
Source Own work
Author Colin
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Black background.
See also the two images juxtaposed.
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© User:Colin / Wikimedia Commons / 
CC BY-SA-4.0
© User:Colin / Wikimedia Commons
Camera Model Sony A77 II
Shutter speed 1/3s
Aperture f/8
Film speed (ISO) 100
Lens Sony DT 2.8/30 Macro SAM
Filter(s) Circular polariser
Flash LCD display providing white polarised light
Support Benro C1282TV1 Travel Angel II tripod
Notes Focus stack of 6 frame combined using Helicon Focus using the pyramid method. Dust removal with Photoshop and final adjustments using Lightroom.
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Date/TimeThumbnailDimensionsUserComment
current15:23, 18 March 2017Thumbnail for version as of 15:23, 18 March 20175,542 × 3,690 (7.51 MB)Colin (talk | contribs)Remove slight pink tint to white.
14:10, 18 March 2017Thumbnail for version as of 14:10, 18 March 20175,542 × 3,690 (7.45 MB)Colin (talk | contribs)User created page with UploadWizard

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