Posted 14 December 2007 - 11:53 AM
Is there anything that I should know about what might help bring the details out of the faces (fliter, fstop)? There will be wide shots and close ups.
Posted 14 December 2007 - 03:23 PM
You'll have different exposures between front-lit full sun and backlit/full shade (assuming there are other trees around), so you might want to take incident readings for both areas and adjust your iris as you and your subjects move to those areas. If it's overcast your life will be much simpler -- take a few incident readings near the tree and call it a day.
As for filters, you'll obviously want an 85 plus some ND, and a polarizer can help hold some detail in overexposed sunlit areas. But thinking practically, if you're shooting this handheld by yourself and you're documenting a real-time event, you're literally going to have your hands full riding your exposure, focus, and re-orienting the polarizer from shot to shot. It might be simpler to eliminate the polarizer from the equation (especially when you have to keep taking your eye from a heavily ND'd viewfinder and squinting in the bright snowy sunlight).
Posted 17 December 2007 - 06:09 PM
If you change angles, just make sure everything is still in the correct zone and you should have matching contrast ratios.
hope that helped,
Edited by Chris Gravat, 17 December 2007 - 06:13 PM.
Posted 18 December 2007 - 08:47 AM
Can you explain to me how ND filters are gaged? I have all of my filters, except for an ND one. If there is such a thing as an "all or general purpose" one? I'd like to pick one up.
Thanks again for the help. I'll post something when I get it back.
Posted 18 December 2007 - 10:57 AM
Posted 18 December 2007 - 02:55 PM
If by gauged you mean identified, commonly in increments of N3, N6, N9, N12 etc..., also can be referred to as .3, .6, etc... Each has a filter factor, as does any filter you use, which refers to the amount of light lost from the filter. An N3 as a filter factor of 2, meaning you lose 1 stop exposure. An N12 has a filter factor of 16, through which you lose 4 stops.
"Can you explain to me how ND filters are gaged? "
Perhaps easier to remember is that it's a logarithmic scale, thus every .3 is equal to one stop.
As in N9 is 9/3=3 stops.
Is math still taught in high school?