Friday, June 10, 2005

Is your Digital Camera - IR Sensitive ?

If you know that your digital camera is IR sensitive, please ignore this blog. If not then read on.
This was a chance discovery while I was playing with my webcam. I happen to see this violet light coming out of the IR-port of my laptop (see Pic 1). On close observation I couldn't find anything with my naked eyes. Later I realized that my webcam is able to capture the IR- rays from my laptop. Later I experimented with my Kodak Digital Camera, and the results were the same. As also for the TV Remote (Pic: 2 & 3).

A little search revealed that this has been a subject of research and there's a lot relating to this concept on the Web.

Just to give you an excerpt:

Unlike ordinary films, silicon-based CCDs and CMOS sensors turn out to be quite sensitive to the near infrared (NIR) in the 700-1200 nm (0.7-1.2µ) range — so much so, in fact, that some of the incoming NIR has to be filtered out in order to reduce IR contamination artifacts to acceptable levels in the visible light images most buyers aim to take. The usual solution is to fit digital camera sensors with special internal IR cut filters (IICFs). These sensor-mounted filters vary in their IR transmission spectra, but most consumer-grade digital cameras let enough NIR through to allow some IR photography. Despite a clear trend toward ever-lower IR sentivities in higher-end cameras, but it gets harder with every passing year.

To further your knowledge on Infrared Digital Photography:
http://dpfwiw.com/ir.htm

IR captured on the Digital Camera

(Pics 1, 2 & 3)

Welcome To My Window

Welcome To My Window

You are here on my window, not by chance but because you were meant to be. This window is a reflection of a life that I dream of.....perhaps you dream of, or maybe we all dream of. It takes you to a place where you live your aspirations without asking yourself questions that you would never find answers to: "What is the meaning of life?" Every person is two persons: the person he is and the person he wants to be. It is here that you may find the person you always wanted to be.


There are many meanings to life that you realize as you grow. Change they say is the only constant and the essence of life. It is here that the clock stops ticking; and you find only ones’ that you love. One’s you have long left behind in your memory lane. And there are those moments that you recall from time to time and say to yourself: “Can I go back to those times?” It is here that you can live those moments.

You dream of a world to be; and so do you dream of a self to be. Open up the window to that world; open up the window to that self. Don’t loose before giving yourself a try; don’t loose the person you want to be before you die. For, you dream of a world to be; and so do you dream of a self to be.
Welcome to my window. You are here on my window, not by chance but because you were meant to be.