Post here to ask any questions about hardware suitability, configuration in ZoneMinder, or experiences. If you just want to know if something works with ZoneMinder or not, please check the Hardware Compatibility sections in the forum, and the Wiki first. Also search this topic as well.
you can but i wont help. IR pass will block all visible light only allowing ir through. IR is still light and a big source of IR light is the sun, as the sun is causing you shadows, you will still have shadows with or without filters. You could pop down a local photographic shop and see if they have a cheap filter you could buy for testing purposes. If you rreally want one if you let me know the size and format of your lens ring i will see what i can find out. Although its a bit specilist, i think ive only ever used them twice, and that was for anpr work