Back Lighting – Part 2

Specifics on soft-box set-up:

Lighting the space behind and around your subject requires a lot of care, patience and finesse.

Controlling the amount of light taken into the camera is another important concept to understand when trying to utilize the style of Back Lighting. We discussed controlling the amount of light your camera receives in “Camera Troubles” through “Part 6” and how it is based on the operation of the human eye, nervous system and brain.

Lighting for jewelry is a tricky occupation because of the many shiny surfaces we so enjoy not just of the metal but the gems too. Back Lighting jewelry uses the least direct lighting in my opinion. (I say in my opinion, because like any other profession you will find many an expert who: knows what others do not and used or has seen extremes which others have not. Yes, truly this is experience and opinion wrapped up into one statement.)

There are a couple of ways to back light a subject even in a “light-box”. The first way is to reflect the light off of the back drop. Another way is to light the object through the sheer fabric of the soft box back. I created a kind of soft box, only because I diffused the major lights in my set-up.

So my basic point is; there is no need to buy soft boxes if you are not focusing on staged macro photography. Have fun and improvise with the equipment you have or invest in basic equipment that you can re-use for other projects. Soft boxes are not designed to eliminate all shadows but do a very good job of softening them, especially since setting up proper lighting means more than one light source which the soft box technique so easily facilitates.

Step 1: Soften harsh lighting.

Camera Troubles – Part 6

What can I see that my camera does not?

There is not an easy way to answer this question, although I will say to say that our visual capability can not be directly and equally compared to the output of film or digital cameras.

Our sight is taken in motion whereas photographs are still images possibly showing movement by blur or subtle indications of motion. So while we may remember a certain pose, facial expression or scenery of a person or place we appreciate as if the memory were a still photograph does not mean our Eye and Brain receives these memories in just such a way.

Video recorders are truly much like cameras in this way that they capture motion or movement in 72 still frames a second or more. A video recorder more closely resembles our vision in that it records motion in so many frames.

Beyond multiple frames to give the illusion of complete motion, our vision is affected by the ability to change so quickly between seeing detail in the shadows from previously inspecting the details lit by broad daylight.

From observing myself and questioning what I see and how I see it, I believe now to better understand the difference of what I see and how I can operate my camera to photograph a scene as I see it.

I see: the bright sunlight streaming through the ceiling of tree leaves, illuminating the grass and garden floor in a brilliant array of color. As I continue to observe and breathe in the wonder of the contrast and illuminated detail, I begin to notice more detail which remained hidden until I had gotten close enough to notice for the first time.

This is done in photography in several ways. Let me begin with the best and quickest being the first.

  1. Simplicity – Photography studios will set-up the portrait studio with solid color backdrop and lighting to evenly light the subject while still allowing some shadow to remain but lighting enough to see detail in both shadowed and lit areas. This is the effect of many additional flashes.
  2. Specific detail – Scenery which cannot be reproduced or moved in-studio must be shot as is. This requires additional flashes or shooting 3 or more photos  from the same place and position of varying shutter lengths and putting them together in HDR format. (For more on HDR, please see our blog posts “High Dynamic Range” and “The Make-up Of An HDR Photo“.)

So it is not that our cameras cannot reproduce something similar to what we see, but that we have some understanding of how we can enable it to see. There are no quick and simple steps to follow for every camera to shoot fantastic photos. I wish there were! Though if this were the case I believe we would have lost some of the adventure in photography.

It can be this simple though, to know that the camera does not as quickly adjust its Lens Diaphragm and Sensor to see detail in shadow and light as do our Iris and Retina. Thus we seek to separate detail we want captured per photo by the varying amounts of light in its surroundings.

Photography truly is an amazing art. The amazement is not intrinsic to itself, but because it is base off of our visual ability which we are blessed to have received from the kind Providence who created us and the world we love to photograph.

Thank you for reading! I pray you have learned and enjoyed reading as much as I have in writing!

Camera Troubles – Part 2

I can be quickly angered with myself because I lack the understanding of how my own camera sees the same scene I do. Not only that, but if I did have the understanding of how my camera see the scene, I do not anticipate that I have the dexterity to change the camera settings in the time it takes to raise the camera to my Eye once I see a shot. Although, because I know why I am angered, I can learn what I do not know. So, let us get to it!

In Tuesday’s post “Camera Troubles” we talked about how our Eye receives light and the path it takes through our Eye to the Brain. Now I should tell you that your visionary organisms are so magnificently fashioned no camera can compare to its spectrum of strength, complexity and ability.

Cameras are doing some amazing and spectacular things today, but the camera which outputs the most fantastic images is only at a basic level able to capture 1 out of the 100 things the Human Eye sees. Amazingly, even giving it a 1 out of 100, is being generous.

The camera is fashioned after the organisms that give us the capabilities to see. By displaying the inspiration for the first camera prototype I will list and correlate the major devices of the digital camera to the human capability of vision.

Major camera devices:

  • Lens – The lens containing glass for focusing and diaphragm for measured light control.
  • Shutter – The shutter is a part of an SLR camera which covers the sensor and only opens for the purpose of taking a picture.
  • Sensor – The sensor receives the light which surrounds the scene.
  • Processor – The processor receives the information from the sensor and sets it in order for storage.
  • Storage – The storage is a memory card that can produce any or all of the images you have taken.

Cameras, film and digital, are wonderful devices we can use to remind us of those specials times and events. There are some limitations of camera technology as compared to our visual capabilities.

“So how do I learn the difference between what my camera sees and what I see?”

“What settings ought to be change, and what is the proper setting level?”

These and other questions will be answered in our first two posts of April. Please join us as we explore how to get the most out of your camera!

Camera Troubles

I am frequently asked about how to adjust camera settings to reduce motion blur for photos. In each case I try to learn one thing; “How much light enters the camera lens?”

Let me see if I can bring technical specifics down to a lower altitude for us to work on without the fear of nose bleeds.

Taking photos is not all so different from looking at those beautiful scenes we are so blessed to wander through, savoring the grace and delicacy of the garden. However, I would not deceive you, there are some very specific differences between our Eye, Optic Nerves and Brains as compared to camera lenses, censors and processors.

Let me start this post set with a discussion on the make-up and structure of our vision.

Our Eye takes in a lot of information, filtering it through a complex network of cones, rods, blood vessel and finally to an Optic Nerve situated at the back of the Eyeball. This only begins the wondrous process we call “sight”.

As the Optic Nerve receives the information from the Eye, it begins informing the Brain through neurological pulses. The brain then both processes and stores the information.

So, to simplify that chain process down to a basic form is this: Eye to Optical nerve to Brain.

Now, please stay with me, we will be looking at some details within the eye that will later be applicable to cameras.

The Eye is very complex and since I am not an Optometrist I will not pretend to know every detail. The basics we will benefit in knowing are these:

  • The Eye Lid, protects from injury, cleans the Eye of debris and is a front line defense to direct sunlight.
  • The lens of the Eye is called the “Cornea”. It slightly changes shape, with the aid of muscles behind the Eye Lid, to form the properly curved angle for the purpose of focusing on objects near or far.
  • Underneath the Cornea are the Pupil and Iris. It is very easy to start talking about both the human Eye and cameras right now, but I choose to remain on optic…I mean, topic. The Iris is the colored “ring” and the part of the Eye from which we discern the “Eye color”. It contains at-least one muscle which constricts the inner opening of the Eye (the Pupil) when you step out-of-doors and into the sun. The muscle or muscles will also relax and the Iris opens allowing the Eye to receive more light.
  • I just made a statement about the Eye receiving more light, which in a manner of speaking is true. However, there is a part of the Eye called the “Retina” which is the specific receptacle of light. The Retina is very sensitive to light and will easily burn if not protected by the Eye Lid and Iris.
  • The Optic Nerve is next in process from the Retina, sending the neurological pulses received from the Retina to the Brain.
  • The Brain receives the neurological pulses from the Optic Nerve and catalogs those pulses in its own magnificent way.

This article is already pretty long, so I will bring it to a close and bring you “Part 2” on Friday. Before we close though I would like to bring out one last thought.

When you step into a dark area from a well-lit place, it takes your eyes a measure of time to adjust. For some people their eyes adjust faster than others while others employ methods which seem to speed the process along. One way I have heard effective is closing the Eye Lid during the transition.

Have you noticed in a low light situation, quick or faster motions do not seem as smooth or  connected? At the very least in low light situations quick or faster motions are more easily concealed.

I hope this Friday to make the mystery of the “pesky camera” plain.

Stay focused.