Refraction
When light rays change path as they pass through one transparent object, such as a lens element, to the next.
Search SWPP and BPPA
Information provided by: SWPP BPPA
More Photographic Terms ...
Refraction
Techniques Glossary Refraction
When light rays change path as they pass through one transparent object, such as a lens element, to the next.
Refraction Abstracts
I recently posted about how to capture a subject inside a single drop of water. This time, I want to show you how to create some interesting abstract images using multiple drops.
REFRACTION
As if this is not enough, there are more problems. When light travels from air to water it slows down as it meets the denser medium..
Refraction - This technique utilizes transparent substances to slow and bend light.
Refresh Rate - The rate at which the image is redrawn on the LCD viewfinder. The higher this rate the smoother the picture.
Refraction
The bending of rays of light as they pass from one medium into another, e.g. from air to water, or from air to glass.
Reflector ...
Refraction - bending of a ray of light in its passage between optical media of different densities
Over exposure - the result of too much light being permitted to act on a sensitive material ...
Refraction. Change of direction of a ray of light passing obliquely from one transparent medium into another of different density, e.g. from air into glass. The basic reason why lenses bend light rays and so form images.
Refraction
The directional shift or "bending" of light rays as they leave one density medium and enter a different one. Or why your legs are short in water when viewed from the air.
REFRACTION - Refraction is a change of direction of a ray of light. Light that is traveling in a straight line alters course - bends - when it strikes light-transmitting substances at any angle other than perpendicular.
[edit] Refraction
Note, n = 1 in a vacuum and n > 1 in a transparent substance, where n is the index of refraction.
Refraction is what makes lenses work. However, refraction in commonplace materials can be harnessed to make interesting photographs. Some of the earliest microscopes were nothing more than a flat plate of metal with a tiny hole in it.
Refraction:
The bending of light as it passes through areas of different density, such as from air through ice crystals or through a camera lens.
Relative humidity: ...
Refraction - change in direction of light rays as they pass obliquely from one transparent medium to another of different density, e.g. air to glass.
Index of refraction
A property of a medium that measures the degree that light bends when passing between it and a vacuum.
richard: while refraction plays some minor part in making "sweet light", the large-scale color-warming of morning or evening light is primarily due to diffraction, ...
Angle of Reflection Angle between the ray of light and the normal drawn to the point of refraction. Angle of Refraction Angle between the refracted ray of light and the normal drawn to the point of reflection.
This refraction, in turn, depends on the nature of the glass used in the elements, the curvatures of the element surfaces, and the separation of the elements.
In practical underwater photography terms, the refraction of light means that what you see won't be exactly what you get, unless your eye and the camera lens are exactly parallel.
Caused by the differences in refraction of the colored rays of the spectrum. It is "axial" when light rays pass through a lens cause the lens to focus at different points, depending on the light wavelength.
The best time to shoot landscapes that include the moon is shortly after the sun has set, just as the moon is beginning to rise: The moon appears largest at this time because of the visual land reference of the horizon and the refraction of the ...
You'll have only the camera's built-in flash, and the housing's flat port will create refraction and make the widest zoom less wide than it would be above water.
Standard lenses change the direction of light through refraction, but DOE changes the light path through diffraction.
Photo Glossary - A
-Abbe number - denotes the degree of refraction of light of different wavelengths to different extents, given by a transparent material, such as glass. The lower the Abbe number, the greater the dispersion of colors.
This is due to the fact that the index of refraction of water is greater than air. This happens behind flat surfaces, such as your mask, a compact camera underwater housing, or a macro port. It does not happen when using a dome port.
refractometer
an instrument for measuring idices of refraction.
refractory
a material that has a relatively high melting temperature and is capable of enduring continuous high temperature.
' They look like prisms or refractions of light with combinations of long bands of brightness coupled with circular blobs.
When sunlight reflects from water droplets, we see rainbows. Refraction causes the light to decompose into different wavelengths (colors) just like in a prism.
Lenses that boast higher grades of glass are able to cut down on this. More expensive glass elements can offer close to zero refraction and reflection making them very appealing to photographers who want to print large detailed photos.
Canon are keen to point out that the S60 has a lens which utilizes 'UA lens technology'. This has lens elements which have 'ultra high refraction index glass' which allows the entire lens system to be thinner (yet maintaining the same image quality).
There is refraction and reflection, and even in the clearest water there are tiny particles, whether plankton or other articulate matter, which produce an effect called backscatter.
The optical center is the point on the optical axis where it passes through the (theoretical one) plane of refraction of the lens
Focal Plane Edit ...
46 includes cloth and fur simulation, physics caching and baking, shading, glossy reflection and refraction, raytraced soft shadows, improved rendering features, and more.
Overview: Blender Homepage.
Download: Blender Download Page.
47 The narrow bright halo moves toward the medium of higher refractive index if the focus is raised, and toward the medium of lower refractive index if the focus is lowered. This effect, caused by the refraction of light, ...
I was looking into getting the f/1.8, being cheaper, but was told it has bad ghosting and refractions at night ans is a poor build quality.
It was also suggested that I look into getting a Sigma 50mm f/1.4 EX DG HSM instead.
To reduce the chances of this happening, shoot just before sunrise or just after sunset when there is still some light in the atmosphere from the recently set sun. (It bends around the Earth's curvature due to refraction in the atmosphere).
very hot now, and a more powerful version, Photoshop CS5 Extended ($999 MSRP) offers exciting 3D extrusions through its Repousse feature. With it you can also create exciting 3-D images with realistic lighting, shadows, reflections, and refractions ...
It provides significantly reduced gloss differential (the difference in sheen between lightly and heavily inked areas) and bronzing (warm-colored refraction based on angle of view).
Such lens elements, multi-layer diffractive elements, are nearly flat lens elements with extremely fine grooves etched into them. They exploit the principles of optical diffraction rather than optical refraction.
Is it a single color or many colors mixed together? Does it have a frequency like sound? And what are some of the common properties of light, such as absorption, reflection, refraction and diffraction?
all the minute particles suspended in water; the result can look like a snow storm. Also note that if you're holding a camera underwater and aiming it without your head in the water then your aim will probably be a little wonky due to the refraction ...
 See also: Light, Photograph, Image, Camera, Lens
|
