Last weekend I spend some time with ACRG multispectral camera (converted Nikon D700). I got Hoya R72 infrared filter and walked on the fields of Western Estonia. I am very happy with results (see below). When it became dark outside I took the soldering iron and made two-led IR torch. This will be used for RTI testing later this week. One thing I found out already, you need quite long exposure time for a sharp image or/and much brighter light source.