Ken Lin wrote: > > ----- > > > Canon's literature clearly shows an exploded IS mechanism and one of the > > components is labeled "IRLED" which stands for infrared light emitting > > diode. It is in the EOS1v, EOS3, or EOS L series lens publication, don't > > remember which. > > I've just looked through the EOS-1V and the EOS-3 pamphlets, neither has the > exploded IS mechanism diagram, I would be interested to hear from anyone who > has found the reference of IR LED. > > Indeed IR LED does stand for Infra Red LED, but it sure puzzles me why Canon > use them in the IS lenses. One would expect (hope) if there is an effect on > IR film that Canon would mention it in their literature. > > However, I did notice while the -1V literature does say the film transport > is "compatiable with IR film", the -3 literature doesn't, and we have all > heard of (slight) fogging of the edge of IR films in -3. Off hand I do not > know what difference the film sprocket hole counting mechanism between the > two bodies are, I had thought they were the same...... > > Regards > > Ken > 1 series cameras (1, 1n, 1v) do not use IR film counters, relying, I believe, on film tension and movement. This would allow for the use of bulk loaded film and IR film. Also, the old 600 series doesn't use use IR nor does the 10. And I've heard the old original Rebel didn't, either. Skip -- Shadowcatcher Imagery http://www.shadowcatcherimagery.com * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
