albeit rather expensive, this cam seems nice:

http://www.astronomycameras.com/en/products/usb-cameras/mono/dmk31au03as/
1024x768 @ 30fps, usb 2.0, comes with no ir filter

In the very cheap cammeras the IR filter are solded in the same tube that contain the lens, but are not in contact!!!

You can cut the end of this without fear to touch the lens (I did it with a common kitchen knife!!)

Does the SPC900-NC have a filter, mine seams to see IR reasonably well, but its a pretty solid unit that doesn’t look like it wants to come undone…

Anyone have any info on this camera or a cunning method for prying it open without destroying it!

thanks!

nebulus - 07 May 2008 08:10 AM

Does the SPC900-NC have a filter, mine seams to see IR reasonably well, but its a pretty solid unit that doesn’t look like it wants to come undone…

Anyone have any info on this camera or a cunning method for prying it open without destroying it!

thanks!

There is usually one of three ways to remove an ir filter; depending on the camera model. remove filter from bracketing, remove filter from lens (glued on usually), and remove filter coating from lens (labor intensive: remove lens from cam and dremmel with a buffer attached, or super fine grain sand paper and a touch of water possibly). so it depends on the model type really. I have a feeling spc900 is one you can pry the two lens pieces apart, maybe wedge them apart with an exacto knife and patience?
try this link, didn’t read too much into though it appears it is easier to replace the lens assembly with another unit: http://www.instructables.com/id/SJJ5AK1F3JESX0H/

Thanks Elite!
I was being far too gentle with the lens mount ring! (managed to break the tripod mount from the base with far too much ease last night)
A little tug and it popped off no problem!
The link you posted was ideal, have several lens coming from ebay too so many thanks!

MSI Starcam Clip works really nice, easy to remove filter just like Microsofts VX-1000. Clear blobs in my DI setup

http://www.msi-computer.de/index.php?func=proddesc&prod_no=632&maincat_no=132&cat2_no=262

Price around 15 Euro.

Creative Labs VF0070 Webcam Live! Ultra For Notebooks
IR Filter Removal Notes

Microsoft Lifecam VX-1000, $23.99 from newegg

http://2.bp.blogspot.com/_bU63RVcrtbw/SJu9CEhwJxI/AAAAAAAAA_I/zFlJsmUo7EM/s1600-h/IMG_0011.JPG

The IR block filter is on the back of the lens assembly. pops out with a knife. easy peasy.