..and he actually reduced the exposure, since the exposure time remained the same but the zoomed shot was taken with smaller aperture. (Maximum aperture for full zoom in his camera is the above mentioned f/4.5)
I used the nite mode SP2 setting on my camera. It's been the most consistent especially on farther distances to match what I see. The manual settings won't do this. So when I zoom in the settings change from when I don't zoom in as much or at all. I am not a big camera person, nor do I care to be. So don't try going over my head on all of this. Take it for what it is. Thanks.
very impressive aspheric. It's about 100k lux right? my HID should be about 300k but don't know if the result would be as impressive as your beamshots :o
I'm not big camera buff but I was thinking the longer the lens (zoomed in) the less light was gathered. My experience or lack of goes back to film days.