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Does reciprocity failure (Schwarzschild effect) exist in digital ...
- https://photo.stackexchange.com/questions/37241/does-reciprocity-failure-schwarzschild-effect-exist-in-digital-photography#:~:text=In%20analog%20photography%20%28film%29%20there%20was%20an%20effect,making%20long%20exposures%20%28usually%20more%20than%20few%20seconds%29.
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Does reciprocity failure (Schwarzschild effect) exist in …
- https://photo.stackexchange.com/questions/37241/does-reciprocity-failure-schwarzschild-effect-exist-in-digital-photography
- In analog photography (film) there was an effect called "Schwartschild effect", or Reciprocity failure when making long exposures (usually more than few seconds). Some film brands created compensation tables for their films; for instance, you would need to double the time after 4 seconds, meaning if the meter says f/5.6 at 5 seconds you have to expose 10 seconds at the …
Physical mechanism of the Schwarzschild effect in film …
- https://pubmed.ncbi.nlm.nih.gov/16912385/
- In consideration of the importance of film dosimetry for the dosimetric verification of IMRT treatment plans, the Schwarzschild effect or failure of the reciprocity law, i.e. the reduction of the net optical density under 'protraction' or 'fractionation' conditions at constant dose, has been experimentally studied for Kodak XOMAT-V (Martens et al 2002 Phys. Med. Biol. 47 2221-34) …
Reciprocity (photography) - Wikipedia
- https://en.wikipedia.org/wiki/Reciprocity_%28photography%29
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Schwarzschild-Villiger Effect in Microspectrophotometry
- https://pubmed.ncbi.nlm.nih.gov/17792315/
- Schwarzschild-Villiger Effect in Microspectrophotometry. Schwarzschild-Villiger Effect in Microspectrophotometry. Schwarzschild-Villiger Effect in Microspectrophotometry Science. 1952 Aug 22;116(3008):203-4. doi: 10.1126/science.116.3008.203. Authors L …
Schwarzschild-Villiger Effect in Microspectrophotometry
- https://www.science.org/doi/10.1126/science.118.3066.382
- Schwarzschild-Villiger Effect in Microspectrophotometry Lucien Lison Science • 2 Oct 1953 • Vol 118 , Issue 3066 • pp. 382 - 383 • DOI: 10.1126/science.118.3066.382
Reciprocity (photography)
- https://yamm.finance/wiki/Schwarzschild_effect.html
- In photography, reciprocity refers to the relationship whereby the total light energy – proportional to the total exposure, the product of the light intensity and exposure time, controlled by aperture and shutter speed, respectively – determines the effect of the light on the film. That is, an increase of brightness by a certain factor is exactly compensated by a decrease of exposure …
The Schwarzschild effect of the dosimetry film Kodak …
- https://iopscience.iop.org/article/10.1088/0031-9155/50/21/N04
- The magnitude of the Schwarzschild effect or failure of the reciprocity law has been experimentally investigated for the dosimetry film EDR 2 from Kodak. When the dose rate applied to achieve a given dose was reduced by a factor of 12, the net optical density was reduced by up to 5%. The clinical importance of this effect is negligible as long ...
The Nature, Significance, and Evaluation of the …
- https://rupress.org/jcb/article-pdf/6/3/313/1071867/313.pdf
- The Schwarzschild-Villiger effect has been experimentally demonstrated with the optical system used in this laboratory. Using a photographic mosaic specimen as a model, it has been shown that the conclusions of Naora are substantiated and
DETERMINING EXPOSURE TIMES FOR PINHOLE CAMERAS
- https://www.pinhole.cz/en/pinholecameras/exposure_01.html
- Reciprocity law failure (Schwarzschild effect) Originally it was accepted that the photochemical change is caused only by the amount of absorbed radiant energy which is proportional to the sum of the amount of light and the length of time the material was exposed to this light.
Casablanca Settat photo spots | 1 photography spots
- https://www.photohound.co/country/morocco/place/casablanca-settat/photo-spots
- Discover 1 Casablanca Settat photo spots with PhotoHound, the app for travel photographers.
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