Re: Will IR Illuminator work with any CCD Camera?

["redbelly" <redbelly98@xxxxxxxxx>]

Helpful person wrote:
> ray wrote:
> > On Sat, 30 Dec 2006 19:28:31 -0800, wdoe999 wrote:
> >
> > Simplest way to find out if a particular camera is IR sensitve: look at
> > the lcd or evf while someone holds a TV remote and punches a few buttons
> > for you - see if you can see the signal.
>
> This is not a good test.  The IR from a remote control is very bright.
> It can be seen by cameras with an IR filter installed.

If so, one could aim the remote at the wall or a sheet of paper,
instead of directly at the camera.  If the camera sees a bright spot on
the wall, then it can see IR.

Just tried this with my own camera, which I'm pretty sure has an IR
filter.  It sees a bright flash when a remote is pointed directly at
it, but nothing shows up when both the camera and remote are pointed at
a sheet of paper.

> Just check with the camera manufacturer that there us no IR filter
> present.

That also works, unless you get some sales yahoo that doesn't know
anything that's not listed in the general camera specs.

Shuckey wrote:

> How is the remote's infrared light changed (modulated?) into visible light?

It isn't.  The camera either can or cannot detect the IR from the
remote.  If it can, a person will know it by looking at the camera's
LCD monitor.

Mark