How to use Ratios
Affirm now that we have this information of proportions, how about we put it to utilize! As I specified toward the start of this article, the proportion can add to the accomplishment of your representation or can destroy it. On the off chance that you take a gander at the 4 illustration pictures once more, investigate how the state of mind of the picture changes with the proportion. Notice how the higher proportions have more dramatization, more power in sense. Notice how the lower ones are gentler and apparently more honest.
For the most part somewhere close to 2:1 and 4:1 is the ordinarily utilized proportion for generally picture. It's sufficient to make displaying on the face, however not all that much to make ugly profound shadows. I for one like around 3:1 (1 and a half stops) or 4:1 myself.
For a kid or child regularly you need a lower proportion, one that is gentler to run with the topic. In any case, put a grizzled old cattle rustler with climate wrinkled skin, and unkempt bristles before your camera and what proportion do you believe is best for such a kindred? On the off chance that you said 4:1 or 8:1 I'd concur. He's rougher, harder and can deal with the expanded complexity as it is appropriate for his look.
On the off chance that you experience issues since you don't have a hand-held meter, don't stress over going out and getting one. I'd just recommend that in the event that you anticipate getting into studio lighting. Rather simply work on observing the distinction between the different proportions (why I propose characteristic light), and in the event that they aren't a flawless 4:1 or 8:1 or whatever it doesn't make a difference. Simply figure out how to perceive when it's excessively solid and when it's excessively frail for the influence you need to make.
Here's another case of proportions at work. None of this is correct or wrong, however which do you believe is the most proper? Work towards making sense of that part and you'll be on the ball!
My first shot had no reflector and I found the shadows too dark and the overall portrait to have too much contrast. So I brought in a reflector for the next one
This is the second image I took using a silver reflector. I found the ratio to be almost 1:1 or non-existant and I wanted a bit more drama than that for a portrait of a man.
For this last image I changed to using a white reflector and backed it off a bit to get this ratio that I was happy with. I shot a few more images after this, but use this process to help you determine your ratios.
Tips on utilizing proportions
In the event that you are endeavoring to make proportions first thing you have to do it get your subject out of the sun. Best thing to utilize is regular light from a window with backhanded lighting (no immediate sun coming in). On the off chance that the sun is spilling in, have a go at including shear drapes or notwithstanding extending a white bed sheet crosswise over it to diffuse it. Doing this in splendid sun will be practically difficult to control the light and it by and large not alluring or complimenting regarding the matter's face.
Here's a couple of beginning stages to make them go, however remember there is no resolute govern on the most proficient method to do proportions in representation. Like everything in photography it's tied in with taking in the procedures or "tenets" and after that utilizing them as proposals as you examination and locate your own particular style or voice. Would you be able to put a 8:1 on a glamourous motion picture star, or a 1:1 on a coal excavator? Completely! I'll even give you some homework to do to demonstrate both can be powerful in the event that they are done well and which is as it should be.
Beginning stages on the best way to utilize proportions
for infants and little kids utilize a lower proportion like 1:1 or 2:1. Mostly on the grounds that they move so rapidly keeping them in the light, confronting the correct heading is exceedingly troublesome. Influencing the light more to try and considers whatever happens.
for ladies utilize a medium proportion like 2:1 or 3:1
for men or business pictures utilize a marginally more grounded proportion like 4:1 or 6:1 (2 and a half stops)
for craftsmen, groups or anything you need more dramatization being used a higher proportion
Homework and activity steps
Your homework task, should you acknowledge it, (too bad I like the MI motion pictures) is to inquire about the accompanying picture takers and reveal to me how they broke the general guidelines I've specified above with incredible achievement and astounding pictures:
George Hurrell
Richard Avedon
Youseph Karsh
Those three picture takers in that spot are a portion of the best representation specialists to ever live. Gain from them.
source : https://digital-photography-school.com/lighting-ratios-to-make-or-break-your-portrait/