Digital BW, The Print

John,

Thanks for your reply. It's my understanding that the Bayer filter is 
more or less impossible to remove without destroying the sensor. Is 
this your understanding?

Also since Foveon has no Bayer filter it would seem that Sigma cameras 
might be an excellent candidate for IR conversion, based on the sensor. 
Unfortunately I haven't seen many examples of a Sigma conversion, 
plenty of Canons and Sonys.

Thanks again

Jules