Infra red film...Infra red digital?

Artemis · Feb 17, 2005

On practical photography there was a thing about turning digital images to infre red ones...

I was curious...how can I do it with my 300D?

Scurra · Feb 17, 2005

I think it's something that is done in PS Arty I read a similar piece in Photography Monthly..

voodoocat · Feb 17, 2005

You can do it with PS but it's not like real infrared. It only simulates it. You can get an infrared filter like the Hoya R72. Now with the drebel a lot of lenses will have a hot spot in the center of the frame. I'm not sure which ones though.

Artemis · Feb 17, 2005

COuld you show me how to do it in PS?

...and later I may get the filter

Unimaxium · Feb 17, 2005

OOh this reminds me, I want to pick up the latest issue of PP in a bookstore. I bought last month's issue and liked it a lot.

Digital Matt · Feb 17, 2005

In PS, duplicate your background layer, invert it, set its' blend mode to color, then make a channel mixer adjustment layer, check monochrome, and put your blue channel at 100%, and the other two to 0.

I would highly recommend buying a Hoya R72 filter however. The results are much nicer.

I have a list of Canon AF lenses and which ones give a hotspot and which don't. It's a journal entry on my DA page, and you can find it here: http://mperko.deviantart.com/journal/4289193/

ferny · Feb 18, 2005

Take a look at these Dan.
http://dpfwiw.com/ir.htm <<< I read that page a long long time ago
http://www.wrotniak.net/photo/infrared/ <<< but I haven't read that one so it may be rubbish

Artemis · Feb 18, 2005

ferny said:
Take a look at these Dan.
http://dpfwiw.com/ir.htm <<< I read that page a long long time ago
http://www.wrotniak.net/photo/infrared/ <<< but I haven't read that one so it may be rubbish

Hehe thanks Jack

Tah Matt

I gave it a go...but im not sure it worked :S

spike000 · Feb 18, 2005

One thing to look out for if you use film.

Your 300v has an infra-red light on the inside used to assist with auto wind of the film.

It will mark dots on the film and be quite destructive if you leave the camera on or the film in for any length of time.

Spike

Artemis · Feb 18, 2005

I know....but if I was carefull...would the film come out ok? :S

Digital Matt · Feb 18, 2005

Arty, it helps to understand a bit more about infrared light, and how it is reflected. Not all things will photograph well in infrared, and similarly, not all photos will look good after the ps trick. Typically, outdoor scenes in bright light with lots of green vegetation and a nice deep blue and cloudy sky work the best.

Here is an example:

Artemis · Feb 18, 2005

hehe thanks, and thats a great picture! Ill show you what I got after doing the p.s. trick

Artemis · Feb 18, 2005

Think I did it wrong but this is what I got
Thanks again everyone!

thebeginning · Feb 25, 2005

what is the PS trick?

ksmattfish · Feb 25, 2005

spike000 said:
One thing to look out for if you use film.

Your 300v has an infra-red light on the inside used to assist with auto wind of the film.

It will mark dots on the film and be quite destructive if you leave the camera on or the film in for any length of time.

I've seen examples of this with other Canon 35mm AF SLRs (not this particular model), and the fogging was minimal. It was mostly around the sprockets, and intruded into the negative only a mm or 2.

Some labs use machines with internal IR lights.