Monday, August 24, 2009

Effect of Infrared Filter

In infrared photography, the film or image sensor used is sensitive to infrared light. The part of the spectrum used is referred to as near-infrared to distinguish it from far-infrared, which is the domain of thermal imaging. Wavelengths used for photography range from about 700 nm to about 900 nm. Usually an "infrared filter" is used; this lets infrared (IR) light pass through to the camera, but blocks all or most of the visible light spectrum (the filter thus looks black or deep red).
When these filters are used together with infrared-sensitive film or sensors, very interesting "in-camera effects" can be obtained; false-color or black-and-white images with a dreamlike or sometimes lurid appearance known as the "Wood Effect," an effect mainly caused by foliage (such as tree leaves and grass) strongly reflecting in the same way visible light is reflected from snow[1]. There is a small contribution from chlorophyll fluorescence, but this is extremely small and is not the real cause of the brightness seen in infrared photographs. The effect is named after the infrared photography pioneer Robert W. Wood, and not after the material wood, which does not glow under infrared.
The other attributes of infrared photographs include very dark skies and penetration of atmospheric haze, caused by reduced Rayleigh scattering and Mie scattering, respectively, compared to visible light. The dark skies, in turn, result in less infrared light in shadows and dark reflections of those skies from water, and clouds will stand out strongly. These wavelengths also penetrate a few millimeters into skin and give a milky look to portraits, although eyes often look black.

Monday, August 17, 2009

Photos with Polarize Effect.

Hard Mix Produces a posterized image consisting of up to eight colors: red, green, blue, cyan, magenta, yellow, black and white. The blend color is a product of the base color and the luminosity of the blend layer. Here are a few of my altered effect.

Sunday, August 16, 2009

Some Favorite Shots

These are some of my favorite shots and was much commented in my flickr profile. Putting it up to share with Photography lovers. Here we go.................

Thursday, August 13, 2009

Chiang Mai Zoo

Chiang Mai Zoo is the first commercial zoo in Northern Thailand. It is located in 100 Huay Kaew Road, Chiang Mai just north of Chiang Mai University. The zoo has been established 16 June 1977.
The privately operated zoo which includes a large variety of animals. In addition, it provides two large aquariums. On 28 October 2008, an aquatic tunnel with a length of 133 metres was opened to the public.
Overall, 400 animal species are represented in the zoo including two giant Pandas, penguins (18 species) and elephants.
The area covers 200 acres. The company owned Chiang Mai Zoo Monorail takes visitors around the premises .