I just watched a good youtube vid on getting the light right in a portrait setting using a stand alone meter, and I do not own one. He was using continuous light in a softbox to emulate a window, and did some outside shots as well.
Now, I believe I can get the proper exposures with continuous light by simply have a gray card and a sheet of white paper for setting up my custom white balance. Just take a pic of the white sheet of paper and set my custom white balance in camera from that. Then take a meter reading of the gray card at the subject face and then hit the exposure lock button and my metering should be good as long as the subject is in that spot. Whenever they change position just read the gray card again and re lock the exposure lock button.
Is this correct for continuos light shots, basically to emulate having a light meter?
If so, that great for using continuous and oustide shots with no flash.
But now, what is the best way to operate without a flash meter while using flash, inside and out? Will the gray card work as long as you are using Ettl? Could you just take a pic of the gray card with Ettl, lock the exposure and then flash exposure lock as well?
And am i right in assuming that when you are using manual flash and manual mode, with no meter, you are basically stuck chimping and checking the histogram?
I also love the ideas about just using your hand and adjust open a stop if it is Caucasian, or down a stop if it is darl skin, or even metring grass if outside.
I guess my reason for asking this is that I just don't have 200 bucks or more for a flash meter, and since it seems I can get by fine with a Gray card while using continuous light, I am hoping there is an easy way to meter for manual flash.
Would love to have your thoughts in general on metring flash without a flash meter and without ettl

