I have since upgraded to a Canon EOS 60D and can't wait until the summer storms.
I appreciate your advice so much though because I am still learning, and I will admit that editing intimidates me.
Hi Kara,
so with the new 60D , if you are shooting lightning at night, the standard basic setting I recommend is :
RAW, or RAW + JPG if you want to have the convenience of immediate JPG
ISO 100
manual setting
picture mode : Landscape
aperture f/8
then shoot 30 seconds, and again, and again, and again, till you catch some.
if first bolts are too far, too faint, go from 100 to ISO 200, or f/8 to 5.6 , or both, and shoot, shoot , shoot.
Instead of all at 30 seconds you can also just hold the shutter till lightning happens and then go for the next image. Or , using a cable release ( or holding the shutter with minimal motion), shoot longer.
trying to catch lightning in daytime under an intense storm is difficult because your exposure times will be very short given the bright light of the sky, but if there is lots of active bolts one may give it a try : I would choose f/100, f/11 or 13 or 15, in aperture priority ( so the exposure time will be set depending on available light ), and also underexpose -2 bias ( so the sky looks dark and the lightning not too bright .
One day I accidentally caught a lightning bolt with an exposure time of only 1/350 of a second ! look here :
http://www.wetter-foto.de/images/upload/orig/012121.jpg
I was actually just shooting that lowering scud which showed signs of trying to become a wallcloud ( slight rotation, and inflow ), and the lightning just happened at the same time , by coincidence.
as for this one :
http://www.wetter-foto.de/images/upload/orig/fmho2c.jpg
on EOS 550D / T2i
lens EF 50mm = 80mm equiv.
ISO 400
aperture priority f/2.5
underexposure bias value -1.5
resulting in 1/125 second handheld exposure, and the lightning just happened by coincidence at the same time ( it was the only bolt on that shower/"storm", I was just shooting the cloud scene ).
But shooting lightning in full bright daytime is difficult, unless by luck, or if you have one of those gadgets that detect the lightning and shoot the camera automatically.
another example of daytime shooting :
http://www.klipsi.ch/blitze/IMG_2645.jpg
it was under a dark meso but still about an hour before sunset, so I had to use rather short exposure times, I was shooting handheld from inside the car for safety through open window as there was quite some wild lightning happening, and I shot about 200 images nonstop , setting was ISO 100, aperture priority f/8, -2 exposure bias value, resulting in 1/2 second exposure times, 50mm lens = 80mm equiv on T2i. Image resulted too bright but since I shot it in RAW I can edit with quite some good result. With 1/2 sec. exposure time handheld with no tripod the foreground landscape is slightly blurry but I actually like the contrast between blurry landscape and supersharp lightning bolt. I often shoot lightning at hand, without tripod, and with wide angle lens even for longer exposures. If the landscape is a bit blurry the lightning will still be very sharp, and that contrast I like .
so Kara, now you have a great camera, but remember, the lens is important, too. What lenses do you use ?