| Re: My Greatest Challenge Fred,
There are two ways (sure there are more) to figure out the correct exposure. The first which I feel works just fine is the old shoot a series of photos (bracket in 3rds of a stop) containing a wide range of tones and do nothing to the photos except to convert to your labs custom profile and ask that the photos be run “as is” with no automatic settings or adjustments. Then simply view the images, select the one you like best and set your meter accordingly. This was the way we always evaluated exposure with transparency film and it works equally well with digital. Don’t worry about what the image looks like on the monitor (but make sure you are using a hardware solution for profiling and calibrating) as what you really care about is how does the print look. I see people and read reviews all the time evaluating digital images by enlarging the images on their monitors and pointing out deficiencies that never show up in a print so IMHO the deficiencies are irrelevant unless I am only concerned in how the image looks at X% on my screen. The other way to determine exposure is to take a gmb colour checker chart and shoot it (bracketing in 3rds) under controlled lighting and check the white square in PS info pallet for a reading of between 240-245 which most printers can hold the detail of white without blowing them out. I also highly recommend you use a handheld meter and ignore the camera meter as nothing will get you as close and it is quick when you have it on your belt. I use a handheld meter at press conferences and news events because it can be extremely quick and will give you consistent results. I also love the expodisc and find it easy to set up a couple, take a quick meter reading and fire off a frame through the expodisc at the light source. This gives me extremely consistent WB which saves time in post production. Like auto exposure settings, auto WB will get you close but for the two seconds it takes to pull out a meter, take a reading, then another second to set the manual WB using an expodisc you can save yourself hours in postproduction fixing inconsistent images the auto settings that all cameras produce.
Just my two cents,
Cliff |