On 6/12/2012 11:21 PM, M-M wrote:
In ,
wrote:

It also seems to be that a glass filter
will greatly extend the exposure time, making IR useless for anything
but landscapes.


True if the camera has an IR blocking filter. But if yours is converted,
you should easily be able to hand-hold the camera. I can get 1/125 @ ISO
100.

The sensor will see plenty of light come through- just not visible
light. So if you try to look through a Hoya R72 you will not see
anything but the camera will "see" a lot.


I was indeed referring to a filter like the Hoya R72 or a Wratten 87. I
don't think I could hand hold a camera with either of those.


--
Peter