Keep the IR filter or not??

[nephilim]

Hi all, x-box cam arrived today for modding which i'll start at the weekend. I've got everything I need & read/watched a load of tutorials BUT the one thing i'm slightly confused about is wether I keep the IR filter in OR take it out?? What are the differences with either option?

[Uplooker]

You require an IR/UV filter to be in the imaging train due to the fact that IR light comes to focus at a different focal point than the rest. Sooo, keep it.

Not sure how you will do that. Mosty normally buy a separte IR/UV filter which you then screw into the "nose piece" that you have purchased to enable the camera to fit /be held in the EP holder.

Ian

[nephilim]

Ah, the tutorial on here said nothing about re-attaching it so I assumed it wasnt necessary.

[JamesF]

IIRC the IR fitler in the Xbox camera is separate small piece of "glass" fitted into the lens mount behind the lens. I removed the lens mount and popped it out on my cameras because I was going to be using them with a "proper" IR filter on the front of the nosepiece. The camera does seem quite IR sensitive though, so if you don't have a separate IR filter I'd leave it in place for the time being.

James

[Uplooker]

I am not familiar with the mods to a x-box cam, only a Phillips SPC880. With that you unscrew the lens, which has the IR filter on it. You then purchase a nose piece like this one:

http://www.firstlightoptics.com/adaptors/125-low-profile-nosepiece-to-webcam-lens-thread-toucam-840k.html

and attach that to the webcam, where the lens was removed from. You then screw a IR/UV filter into the other end.

Hope that helps,

Ian

[nephilim]

Thanks. So i can just 'pop' the filter back in once iv taken out the lense? Sorry 4 all the questions but im COMPLETLY new to this haha.

[JamesF]

My recollection is that when you unscrew the lens, the filter is behind it in the lens mount (glued to the lens mount, perhaps). So just remove the lens and leave it at that.

James

[turbotim]

On my life cam studio that i use for only planets i had to take out the ir filter and the lens, all mine is now is a chip pointed toward the sky! Now i was supposed to save the ir filter for it if i wanted to use it for terresteral viewing during the day or something.