jueves, 21 de octubre de 2010

Paso a paso: Fotografías UV a bajo costo

Instructables es otra de esas páginas interesantes para consultar en los momentos de ocio. Quizá sea un poco facilista, o bien, los proyectos no sean tan baratos de realizar por estas latitudes, pero no cabe duda, que es una muy buena fuente de ideas para desarrollar, aunque sea, al modo de cada uno :)

Hoy, y especialmente para los fotógrafos que quieran experimentar con analógica, o bien, con métodos ópticos poco ortodoxos: Como realizar fotografías dentro del espectro Ultravioleta “a la antigua”.

Photography in the Ultraviolet spectrum or "See the World Through the Eyes of a Bee".

 

For years I've wanted to mess around with UV photography. Unfortunately, all the websites on DIY UV seem to assume an infinite amount of money and access to specialized equipment on my part. There are two things that I don't like, when someone tells me I HAVE to spend a lot of money (quartz lenses starting at $3000) or that i need specialized equipment (Wratten 18A filters, not cheap either).

So I set out to do it my way, and here's my $5 solution to UV wavelength photography.

Photography in the Ultraviolet spectrum

step 1 - Finding a filter

I was wracking my brains trying to find a UV bandpass filter, when, quite literally, a light bulb went off in my head. A blacklight bulb that is. Blacklight bulbs are formed from wood's glass. Wood's glass is a uv & ir bandpass filter.
There are two kinds of blacklight bulb (at least), incandescent and fluorescent. I tested both, good for you, because the fluorescent kind DID NOT WORK. This is good because the incandescent is safer to work with, and cheaper.

Finding a filter

step 2 - Take your light bulb

and break it, once you've broken it, take a piece that will cover your camera lens and work out a mount. I used the same mounting technique from my previous instructable. Okay, I cheated and used a glass cutter.
Here it is already to mount on my digital camera.

Take your light bulb

 

step 3 - Go outside and take some pictures

You'll need bright sunshine, and maybe a tripod, you can use flash, it puts out plenty of UV and gives you a different look.

Go outside and take some pictures

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Fuente: http://www.instructables.com/id/Photography-in-the-Ultraviolet-spectrum/#step1

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