I have a project where I build a Nikon camera IR remote control, similar to Nikon's commercial ML-L3 but with timelapse possibilities. It works well except that the distance between the remote control and the camera is only about 1 meter. This is when I push almost 40 mA through the IR-led. I have IR-LEDs from Kemo Electronics and according to some page on internet (not Kemo's) it can handle 100 mA. If so, the working distance may be improved.
I've understood it is possible to use transistors to amplify the current, but there is a whole jungle of them. Any ideas on its specification and what to use? I will run my Arduino Mini with a 9 volt battery.