[AstroGuy]

Hi WasYoungOnce,

Thanks for the tidbit. I am aware of the information you have expressed. These days though, CCD's are getting much more efficient at lowering noise. They are also being manufactured way cheaper than the old days, especially some stuff comming from China. I know, some people are iffy at stuff that comes from China, I have come across some dodgy stuff but by the same respect also some great products.

The purpose of this thread was mainly to get some form of concensus as to what others users of such equipment have found to be an acceptable sensitivity level for a guide cam. I'm aware that exposure factors help but this is not what I'm after. BTW, I thought the term "Lux" was just another way to rate light quanta in the detection process.

From what I have gathered so far, the Sony HAD sensors with around .001 Lux sensitivity and less are being used by a lot of guidecams. It just so happens the CCD I mention I plan to purchase has a Sony HAD CCD matrix.

Thanks for the input.