IR specific C mount lenses

[stingOM]

Are these any good for IR B&W photography on the m4/3?
http://www.electrophysics.com/Browse/Brw_ProductLineCategory.asp?CategoryId=191&Area=IS

Thanks.

[Sevo]

Well, they claim being ideal for near IR purposes, so they should be good by wavelength. But the lenses might be made to match security camera (frequently sub-TV in resolution) specs, in which case they might be rather poor performers on a camera with around forty times the sensor resolution...

[kds315*]

That site clearly states that

These objective lenses perform well for monochromatic imaging in the noted spectral range. It is important to note that they are not chromatically corrected for the entire spectral range.

So as they are not chromatically corrected, they may only be used with narrowband filters, but not for "normal" photography.

[ZoneV]

I suppose this are normal lenses with a special wide coating. The can not be used on the entire spectral range from ~320nm to probably 1800 nm. But I supoose (!) that the would work good for ~ 720 to ~1100nm IR photography.
But "good" is good enough for their application.
Because there is no "Megapixel" mentioned, they seem to be designed for sub 1 Megapixel quality. Probably VGA - I suppose that is not exactly what you are searching for.
Please don´t forget that an 1" image sensor has ~16 mm diagonal - not 25.4!