First up, the size of the light source in relation to the size of the subject.
Imagine looking out the window at the front yard and without seeing the sky knowing whether it is sunny or cloudy. We do know, right?
We don’t have to see the sky to know if it is sunny or cloudy, we can tell from the way the light is behaving on the subjects in our yard. The car has a deep shadow below it if it is sunny and very little shadow at all if it is cloudy.
The plants are either casting long shadows or seemingly no shadows. The sun makes everything have a shadow, while the cloud cover acts as a shadow reliever.
We know this because we have observed the world for our whole lives and we understand how light works when it is sunny and when it is cloudy.
The sun is a tiny light source. (Yes, science nerds it is way huge, but I am talking about from where we look at it.) No more than a coin in the sky.
That is a very small light source. And it can be totally blocked out by the smallest of items: a branch, or a rose, or even a butterfly. That means that the light cannot go around the subject and is instead blocked by the subject.
Here is the equivalent of the sun in the studio. A small, unmodified light at a distance from a coffee cup.

And here is how the shadow falls on a small coffee cup when a very large light is applied. The light wraps around the coffee cup because the light is so much larger than the subject.

That is how the sun works as well.
The sun is the very small light source, and when the clouds come over the land, the sun lights the back of the clouds and they light the earth with no shadows because they go from horizon to horizon. Light is wrapping all around all the subjects it is seen by.

Think of your softbox as a “cloud cover” for your light (the sun) and it makes more sense to you.

Question: is a 4’x5′ softbox a large softbox or a small softbox?
The answer is compared to what? Other softboxes? Yes.
The subject? Well – that depends. What is the subject?
If the subject is a Hot Air Popcorn Maker, then it is indeed a very large light source.
If our subject is a jetliner, then no – it is not a very big light source at all.
And then… how far will it be from our subject?
Distance makes the perceptual size of the light source diminish as it gets farther away. And it is that perceptual view is the one that matters.
A 20″ light source very close to a 1″ watch is a large light source. A 72″ x 72″ source far away from a 14′ square box is a small light source.
And the light will render that way as well.
LIGHT DOES THE SAME THING EVERY TIME – IT IS THE SUBJECTS THAT CHANGE THE GAME
ASSIGNMENT FOR THIS CLASS:
- Choose a subject less than about 8″ – like a shoe or a water bottle. Light it with a small light source (speedlight) to see how the shadows fall. Then light it with a softbox (24″ or so) in close. Very close.
- Move the softbox 6″ away and take another shot. Then do it again at 6″ intervals until the softbox is 6 feet away. Notice the changes in how the subject responds to the light, and how the shadows get sharper and deeper.
The size of the light source in relationship to the subject is one of the four principles of light.
Inspired by Sarah Moon: 8 Week Portrait Class Student Work
This week we studied the work of Sarah Moon for inspiration. The students looked at Ms Moon's work, analyzed it, found what they liked and used it for inspiration. The goal is not to copy the masters, it is to understand them and let that understanding inspire the...
“Protectionism” is NOT The Way of Professional Photographers
The "Protectionist" Attitude Among Photographers Well, not all photographers, but a considerable few. Enough that they can make a lot of noise and bluster. I don't suffer that attitude well, never have. The whining about how there are too many photographers and how we...
Lighting Essentials Place Among Photography Blogs
Very excited to see that Lighting Essentials is the number 16 highest rated photography blog, overall. There is a whole lot of information on the page about designations for certain criteria that LE can certainly improve on. But heck... I am very happy to be up there...
Portraits Inspired by Yousef Karsh
This past week we looked at the work of Yousef Karsh. The students in the 8 Week Portrait Workshop are learning a ton and putting it to practical use. Here are their images from last weeks assignment. [gallery link="file" columns="6"...
Creating a Photo Portfolio That Represents Your Work
“What makes a photograph “Portfolio Worthy” I want to talk about what makes an image worthy of your portfolio today, and have you think about your work in possibly a different sort of way. What is your portfolio, anyway? It is the repository of the work you have made,...
6 New Books I Have Ordered
From Amazon: "W magazine is renowned for its avant-garde fashion stories, those elaborate confections of magic and mystery that have inspired and captivated readers for more than two decades. This volume gathers 10 of the most remarkable stories, each in its entirety,...
A Simple Tool for Shooting To Layout
Shooting for the web has created some interesting configured imagery. From very wide and narrow images for banners to tall and skinny images for side bars, shooting to layout is as important as ever. Here is a simple video for making a viewing tool that can help you...
Portraits Inspired by Victor Skrebneski
In the 8 week portrait class we looked at the work of famed Chicago photographer Victor Skrebneski. The students were asked to make a photograph inspired by what they saw in Skrebneski's work. Not to copy it, but to be inspired by it. Here are the remarkable expamples...
Distraction, Discontent and Distruption (Part One)
Distractions, Discontent, and Disruption The three “D’s” of the new daily discomforts. Wait, is that a fourth? We are constantly being distracted from our work, made to feel discontent at every turn and facing disruption in our business like never before....
Trends to Watch in 2015
Trends I am noticing: Social Media Thinning. Photographers are becoming more selective in where and how they spend their time in social media. This is a good thing. Not every SM platform is right for you and what you do.Facebook may be find for consumer shooters, but...
Providing Cover – Keeping Clients
Finding someone to “cover” for you on a photography assignment can be tricky business. Not just for your client, but for you AND the person who you hire to do the shoot in your place. Look, stuff happens. We all get sick or a relative passes away or there is emergency...
What I’ve Learned So Far: Thirty One; “I Love Photography… I Always Have”
{This is the final post of the "What I've Learned So Far" series and it will become a book very soon. All of you may download it for free if you are interested. I hope you enjoyed the series. I've learned more than just this, but I figured wrapping it in a month long...
What I’ve Learned So Far: Thirty; “The Overwhelming Mystique of Negativity”
"You can't do that anymore. The market is full of photographers." "Nobody is making any money in this business." "Why the hell would anyone want to go into the professional photography now, all the clients have dried up." I know. We hear that all the time. Nothing new...
What I’ve Learned So Far: Twenty Nine; “Overnight Success? I’ve Got Your Overnight Success Right Here!”
I read all about "overnight success" and usually I just smile to myself. Of course I do not believe them, but that's OK - they are always great entertainment. I remember an interview with the band "Foreigner" where the gushing interviewer mentioned their meteoric rise...
What I’ve Learned So Far: Twenty Seven; “Baggage Sucks”
What do I mean by "baggage"? I mean the crap we think about when we are making our work, the stuff that goes on between our ears that may have NOTHING at all to do with reality, but begins to weigh on us with false intentions and ruinous decisions. When I was younger...
What I’ve Learned So Far: Twenty Six; “Be Deliberate”
Be certain. Be sure. Be deliberate. Now this may sound strange coming from someone who advocates challenging everything, finding new solutions, and experimenting, but they actually go very well together. When I say be deliberate, I am talking about a process from 0 -...
What I’ve Learned So Far: Twenty Five; “Now and Then, Turn It Off”
I am writing this on Christmas Day, 2014. Not gonna do too much today. Spend time with the family, have a quiet read, and listen to some of my favorite music. There are times we must do this after long periods of stress and hyperactivity. It is our way of...
What I’ve Learned So Far: Twenty Four; “Photography is a Privilege”
Is making a photograph easy? Good question... although the question should really be; Should making a photograph be easy? We seem to expect it to be. I see the ads about how easy it is to "click" and get a picture. Kodak said it decades earlier: "Push the button and...
What I’ve Learned So Far: Twenty Three; “On Creativity”
Occasionally we run into the argument of whether or not 'creativity' can be taught, or does it have to be born within us? We read all about creativity and how important it is. We award little statuettes to really "creative" people. Creativity is blessed, cursed,...
What I’ve Learned So Far: Twenty Two; “Photography Is an Incredible Art”
Photography at its best can be a reflection of the world in ways that we have never been seen before. It is the photographer's vision that makes the image become more than it could have been. But at the heart of the photographer's vision, there is a deep foundation of...
What I’ve Learned So Far: Twenty One; “Don’t Be A Clone”
Nobody likes a clone. A clone is a copy, a non-authentic 'ringer' that has no soul, no guts, no passion, no quirks or guilts or pleasures. And it is way, way too easy to be a clone. Just copy something or someone and do that as you. But it is you. Case in point. A...
What I’ve Learned So Far: Twenty; “Gravity; A Force of Nature, Not a Way of Life”
One of the more difficult things to wrap our arms around is that not everyone out there wants us to succeed. In fact, the numbers are highly stacked against us. More people will seem to want to douse your flame of passions before it gets lit than will block the wind...
What I’ve Learned So Far: Nineteen; “It Isn’t What You Shoot, It’s HOW You Shoot What You Shoot”
In the 'business' of photography some things have changed drastically since I started out a long time ago. From "day rates" to "snip tests" some of what we did as a normal part of our creative lives have either vanished or have been recreated into some new language -...
What I’ve Learned So Far: Eighteen; “It Costs What It Costs”
Have you ever purchased a car? From a dealership? All the run around they do, the "let me take this to my manager" BS, and the "hey, what do you want to spend per month for this little honey..." makes me cringe. I am a marketer, and that stuff makes me laugh. But it...