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Dishwashing liquid (BrE: washing-up liquid), also known as dishwashing soap and dish soap, is a detergent used to assist in dishwashing. It is usually a highly-foaming mixture of surfactants with low skin irritation, and is primarily used for hand washing of glasses, plates, cutlery, and cooking utensils in a sink or bowl.

The reduced surface tension of dishwashing water, and increasing solubility of modern surfactant mixtures, allows the water to run off the dishes in a dish rack very quickly. However, most people also rinse the dishes with pure water to make sure to get rid of any soap residue that could affect the taste of the food.

Focus Stacking

Used equipment:

Canon 60D

Canon MP-E 65mm 1-5x Macro Lens (@ 3x magnification)

Manfrotto tripod

Re-usable glass syringe with needle

Dishwashing liquid

Photoshop Lightroom 4 & PS3 (Extended)

Several light sources

Orange background

Focus stacking (or hyperfocus) is a digital image processing technique which combines multiple images taken at different focus distances to give a resulting image with a greater depth of field (DOF) than any of the individual source images. Focus stacking can be used in any situation where individual images have a very shallow depth of field; macro photography and optical microscopy are two typical examples.

Focus stacking offers flexibility: as focus stacking is a computational technique images with several different depths of field can be generated in postprocessing and compared for best artistic merit or scientific clarity. Focus stacking also allows generation of images physically impossible with normal imaging equipment; images with nonplanar focus regions can be generated. Alternative techniques for generating images with increased or flexible depth of field include wavefront coding and plenoptic cameras.

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Photo details

  • Uploaded on November 3, 2012
  • © All Rights Reserved
    by Erik van den Ham