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Photography is the process of recording pictures by means of capturing light
on a light-sensitive medium, such as a film or electronic sensor.
Light patterns reflected or emitted from objects expose a sensitive silver halide based chemical
or electronic medium during a timed exposure, usually through a photographic lens in a device
known as a camera that also stores the resulting information chemically or electronically.
In optics, an aperture is a hole or an opening through which light is admitted. More specifically,
the aperture of an optical system is the opening that determines the cone angle of a bundle of rays that come to a focus in the image plane.
Black and white photography:
Black and white is a broad adjectival term used to describe a number of monochrome forms of visual arts. Most forms of visual technology start out in black and white, then slowly evolve into color as technology progresses.
In photography, exposure is the total amount of light allowed to fall on the photographic medium (photographic film or image sensor) during the process of taking a photograph. Exposure is measured in lux seconds and can be computed from exposure value (EV) and
scene luminance.
Fine art refers to arts that are concerned with a limited number of visual and performing art forms, including painting, sculpture, dance, theatre, architecture and printmaking. Schools, institutes, and other organizations still use the term to indicate a traditional perspective on the art forms, often implying an association with classic or academic art.
The focal length of an optical system is a measure of how strongly it converges (focuses)
or diverges light. A system with a shorter focal length has greater optical power
than one with a long focal length.
A lens is a device that causes light to either converge and concentrate or to diverge.
It is usually formed from a piece of shaped glass or plastic.
An achromatic lens or achromat is a lens that is designed to limit the effects of
chromatic and spherical aberration.
In geometrical optics, a focus, also called an image point, is the point where light rays originating from a point on the object converge.
An image, or image point or region, is said to be in focus if light from object points is converged about as well as possible in the image; conversely, it is out of focus if light is not well converged. The border between these conditions is sometimes defined via a circle of confusion criterion.
A camera is a device used to capture images, as still photographs or as sequences of moving images (movies or videos). The term as well as the modern-day camera evolved from the camera obscura,
Latin for "dark chamber", an early mechanism for projecting images,
in which an entire room functioned as a real-time imaging system
The camera obscura (Lat. dark chamber) was an optical device used in drawing, and one of the ancestral threads leading to the invention of photography. In English, today's photographic devices are still known as "cameras".
A special release such as a book or a print, restricted to a specified number of copies.
They are released for a shorter time and in lower quantity,
with a running
number ("130 of 200") printed on the products which will increase in value,
as the company will not manufacture more then that number of copies.
With Museum Glass, you've got the clearest, best framing glass available.
The glass appears virtually invisible, reflection is
reduced by over 85%
with the highest light transmission, giving you an outstanding view of your
photograph.
This is a term used to indicate materials which have undergone laboratory analysis
to determine their acidic and buffered content is within safe levels in order
to meets the standards. Archival quality denote material that will last over long periods
(several decades) with minimal deterioration because of its chemical stability and physical durability.
Pigments are the main components of ink, containing the different colors.
The size of the pigment is very important for the ability to diffuse in the solution inks.
Qualities such as hue, saturation, and brightness are inherent in the ink,
and vary dependent on the source and type of pigment.
Pigmented inks contain agents that ensure adhesion of the pigment to the surface
and prevent it from being removed by mechanical abrasion or natural fade.
These materials are typically referred to as resins (in solvent-based inks)
or binding agents (in water-based inks).
Pigmented inks are advantageous when printing on paper because the pigment
stays on the surface of the paper. This make the print fade resistant
and endure the time with the most beautiful and vibrant color.
Professional quality acid free mat boards are neutral PH and buffered, ensuring that they will not
yellow or harm your valuable art over time.
Dry mounting is the technique of securing a photograph to a strong backing (usually a mat board)
with the use of adhesive to prevent folds, creases or bends in the photograph.
Canvas is an extremely heavy-duty plain-woven fabric used for making sails,
tents and other functions where sturdiness is required.
It is also popularly used as a painting surface, typically stretched.
Sepia tone is a type of digital photo in which the picture appears similar to
a traditional black-and-white print toned with sepia.
It appears in shades of brown, as opposed to grayscale.
There is no single color known as “sepia”, the term covers a range of yellow and brown mixtures.
NTSC is the analog television system in use in the United States, Canada,
Japan, South Korea, the Philippines, Mexico, and some other countries,
mostly in the Americas). It is named for the National Television Standards Committee
PAL, short for Phase Alternating Line, is a colour encoding system used in broadcast television systems in most of Europe and large parts of the world
CCD is a microprocessor, a programmable digital electronic componen
Three-CCD cameras have three separate charge-coupled devices (CCDs-microprocessor),
each one taking a separate measurement of red, green, and blue light.
Light coming into the lens is split by a trichroic prism assembly, which directs the appropriate wavelength ranges of light to their respective CCDs.
Three-CCD cameras are regarded to provide superior image quality to cameras with only one CCD.
By taking a separate reading of red, green, and blue values for each pixel,
three-CCD cameras achieve much better precision than single-CCD cameras.
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