Jonida Kananaj
Wednesday, April 18, 2012
Tuesday, March 20, 2012
All Calatheas belong to the maranta family-Marantaceae. Calathea genus includes about twenty five species. Calathea are native to tropical Americas. Many Calathea species are popular house plants, and commonly called Prayer Plants or Zebra Plants. Typically tropical, Calathea need heat and humidity and shade from direct sunlight. Each night, Calthea Prayer Plants leaves fold together upwards, mimicking human hands folded in prayer! Calathea leaves are pleated ovate and dark green.
Calathea insignis, also called Rattlesnake Plant, has tapering, narrow, erect foliage, yellow green with lateral ovals, alternately large and small, with maroon underside. Calathea makoyana, Peacock plant, comes with oval shaped leaves with opaque, olive green lines and oval areas alternately short and long, in a translucent field of yellow green. The underside of the leaf is purple red color.
Calathea roseo-picta grows elliptical leaves, in a dark green upper surfaceand purple underside, red midrib, and a red zone fading to pink near the margin. Dark green Calathea louisae leaves are broadly ovate, with light green splotches along the midrib and have a purple underside.
Facts About Calatheas
- Calathea is generally believed to have been first introduced to Hawaii in the early 1970's. Most Calatheas are native to the dim-lit South American rain forest surfaces.
- The most commonly available Calatheas for indoor gardens are Calathea insignis - Rattlesnake Plant, Calatheas makoyana - Peacock Plant, and Calatheas zebrina - Zebra Plant.
- Calathea is usually confused with and closely related to the species Ctenanthe, Maranta and Stromanthe.
- Calatheas' lovely striped leaves have burgundy undersides, sold sometimes as Sromanthe amabilis or Ctenanthe amabilis.
- Calatheas are produced by divisions or tip cuttings, with nodes to form the roots. Mist and reduced light are important during the early stages of propagation.
- Calatheas are ideal for removing toxins from the air, caused by cleaning products, modern furnishings that are made of synthetic materials and so on.
Growing Calatheas
- Keep Calathea in bright indirect light.
- Calatheas actively grow from march to october when the soil is moist.
- During winter allow the top soil to dry between waterings.
- The ideal temperatures are 60-70 degrees farehheit.
- Feed Calatheas once every two weeks.
- Repot during late spring when the plant becomes crowdy in its containers.
Calatheas Plant Care
- Calathea do tolerate a wide temperature range and do well indoors so far as a high degree of humidity is given.
- Calathea show brown edges on the leaves if the air is too dry.
- Humidifiers or pebble trays can be used to maintain humidity around Calathea.
- Calthea thrive in water controlled containers.
- Caterpillars, mealybugs, mites, and scales are the major arthropod pests of Calathea.
Thursday, March 15, 2012
CAMERA ELEMENTS
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The Lens
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Before the image makes it to the film or digital sensor in your camera, it has to travel through the lens. Digital technology has given anyone with computer skills the ability to learn how to edit and fix pictures. However, the better the lens, the better the quality of the image. There are many different lens options for cameras, from the widest fish-eye lenses to the super-telephoto ones that can record an image from a mile away. One example of a super-telephoto is Canon's 1200mm telephoto lens.
2.The Shutter
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A properly exposed picture results from successfully controlling the amount of light that reaches the film or digital sensor. While the lens aperture will control how much light transfers through the lens by changing the size of its opening, the cameras shutter controls how long that light contacts the film or digital sensor. The shutter also gives the photographer control of the type of image he wants to shoot. A slower shutter speed and the technique known as "panning" will create an image that displays movement. And a fast shutter speed, with some cameras--like Canon's 1D professional camera--having the ability to record images a 1/16,000th of second, photographers can make a water droplet appear to be suspended in air.
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3.The Sensor or Film
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Once the image travels through the lens and the shutter, it eventually arrives at the film plane or a digital sensor. Film is still used today, although not nearly as much as previously. Film is a material that is specially designed to be sensitive to light. When it is properly exposed, it records what it views. Through the developing process, it is converted to negative that a print can be printed. Digital sensors are also sensitive to light when power is sent through them. They, along with an internal image processor, turn the image into binary digital data that is later assembled to resemble the picture the photographer shot.
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Tuesday, March 6, 2012
Say I do... Marry me
The camera is the image-forming device, and photographic film or a silicon electronic image sensor is the sensing medium. The respective recording medium can be the film itself, or a digital electronic or magnetic memory.[6]
Photographers control the camera and lens to "expose" the light recording material (such as film) to the required amount of light to form a "latent image" (on film) or "raw file" (in digital cameras) which, after appropriate processing, is converted to a usable image. Digital cameras use an electronic image sensor based on light-sensitive electronics such as charge-coupled device (CCD) or complementary metal-oxide-semiconductor (CMOS) technology. The resulting digital image is stored electronically, but can be reproduced on paper or film.
Nikon D3 DSLR
Nikon have always been at the forfront of
quality professional cameras, and the Nikon D3 digital SLR builds on the
Nikon reputation. Make no mistake this is one expensive professional
camera, a work horse to pay the bills and a damn fine camera for those
who can justify its pro level price tag.
The Nikon D3 is a 12.1 mega-pixel camera featuring a high ISO rating allowing quality low light photography without the noise that plagues other digital cameras in this situation. The LCD is a high resolution treat allowing easy access to the menus and photo viewing.
The Nikon D3 is a 12.1 mega-pixel camera featuring a high ISO rating allowing quality low light photography without the noise that plagues other digital cameras in this situation. The LCD is a high resolution treat allowing easy access to the menus and photo viewing.
Thursday, March 1, 2012
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