2006-09-11 05:41:06 · 5 answers · asked by wartyhoggy 1 in Science & Mathematics ➔ Physics
"Normal" film (I assume ISO 100) will not do the best job for shooting the Auroras, due to "reciprocity failure" which happens when you expose the film for anything over about 30 seconds.
I have had very good results photographing comets using Fuji Velvia or Provia stocks at ASA (ISO) 200 to 400 with a wide-open aperture (f/2.8) and the shutter open for no more than 20 seconds. Even stars were captured, with almost no streaking.
Good luck shooting!
2006-09-11 05:49:46 · answer #1 · answered by Anonymous · 1⤊ 0⤋
With a wide-open lens and lots of exposure time. Obviously the camera must be mounted on a tripod. Buy the highest-speed film you can find, and hope that is fast enough. The Aurora does not throw much light.
2006-09-11 05:45:58 · answer #2 · answered by Anonymous · 1⤊ 0⤋
Use 400 speed film with an aluminum chastity belt.
2006-09-11 05:50:46 · answer #3 · answered by David G 3 · 0⤊ 0⤋
Hi. Mount to a tripod first. I agree with your first answer, but experiment with different times. Wide open aperture.
2006-09-11 05:47:26 · answer #4 · answered by Cirric 7 · 1⤊ 0⤋
I'd use the "bulb" setting (B) and keep the apperature open for a couple minutes with high ASA film
2006-09-11 05:44:47 · answer #5 · answered by Anonymous · 1⤊ 0⤋